Diagnostic Routines

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NO FORWARD ONLY

Possible Component	Reference/Action
201 - ROUTINE
Powertrain Control System
PCM, external vehicle wiring harnesses, transmission internal harness, line pressure control (PC-A) solenoid	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST E . Repair as required. Clear DTCs, road test and carry out on-board diagnostic test again.
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressure
Low pressure	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow the pressure diagnosis test as required.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged, blown out, leaking	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
PC-A solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new PC-A solenoid or solenoid body assembly. If misassembled, reassemble correctly.
OD OWC
Mechanical diode engaged in both directions, struts missing, OWC damaged	Inspect for rotation in one direction only. Mechanical diode should overrun in the opposite direction. Install new if damaged or fails inspection.
Center Support
Feed bolt not tightened to specification	Tighten to specification.
FWD clutch seal rings damaged	Inspect for damage. Repair as necessary.
Support damaged or leaking	Inspect for damage. Repair as necessary.
Forward Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Low/Reverse OWC
Mechanical diode engaged in both directions, struts missing, OWC damaged	Inspect for rotation in one direction only. Mechanical diode should overrun in the opposite direction. Install new if damaged or fails inspection.

NO REVERSE ONLY

Possible Component	Reference/Action
202 - ROUTINE
Powertrain Control System
PCM, external vehicle wiring harnesses, transmission internal harness, line pressure control (PCA) solenoid	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST E . Repair as required. Clear DTCs, road test and carry out on-board diagnostic test.
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressure
Low pressure	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow the pressure diagnosis test as required.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged, blown out, leaking	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
PC-A solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new PC-A solenoid or solenoid body assembly. If misassembled, reassemble correctly.
Center Support
Feed bolt not tightened to specification	Tighten to specification.
Direct clutch seal rings or bearing damaged	Inspect for damage. Repair as necessary.
Support damaged or leaking	Inspect for damage. Repair as necessary.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return spring damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH REVERSE ONLY

Possible Component	Reference/Action
203 - ROUTINE
Powertrain Control System
PCM, external vehicle wiring harnesses, transmission internal harness, line pressure solenoid (PC-A), low/reverse solenoid SSPC-E, PTO input to PCM	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST E . Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.
PTO
Input to PCM
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressure
High pressure	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow the pressure diagnosis test as required.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
PC-A, SSPC-E Solenoid damaged, stuck or bore damaged. Manual valve or solenoid damaged, stuck or bore damaged	If damaged or parts are missing, install a new PC-A solenoid or solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. Repair as necessary. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. Repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Repair as necessary. If damaged, install a new pump.
Control valves, springs or seal damaged, stuck or not assembled correctly	Inspect for damage. Repair as necessary. If damaged, install a new seal or pump assembly.
Center Support
Feed bolt not tightened to specification	Tighten to specification.
FWD clutch seal rings damaged	Inspect for damage. Repair as necessary.
Center support damaged or leaking	Inspect for damage. Repair as necessary.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH FORWARD ONLY

Possible Component	Reference/Action
204 - ROUTINE
Powertrain Control System
PCM, external vehicle wiring harnesses, transmission internal harness	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressure
High pressure	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow the pressure diagnosis test as required.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoids damaged, stuck or bore damaged. Manual valve or solenoid damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. Repair as necessary. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. Repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Repair as necessary. If damaged, install a new pump.
Control valves, springs or seal damaged, stuck or not assembled correctly	Inspect for damage. Repair as necessary. If damaged, install a new seal or pump assembly.
Forward Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

DELAYED OR SOFT REVERSE ONLY

Possible Component	Reference/Action
205 - ROUTINE
Powertrain Control System
PCM, external vehicle wiring harnesses, transmission internal harness, line pressure (PC-A) low/reverse solenoid SSPC-E	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST E . Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressure
Low pressure	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow the pressure diagnosis test as required.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
PC-A, SSPC-E Solenoid damaged, stuck or bore damaged. Manual valve or solenoid damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid or solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. Repair as necessary. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. Repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Repair as necessary. If damaged, install a new pump.
Control valves, springs or seal damaged, stuck or not assembled correctly	Inspect for damage. Repair as necessary. If damaged, install a new seal or pump assembly.
Center Support
Feed bolt not tightened to specification	Tighten to specification.
FWD clutch seal rings damaged	Inspect for damage. Repair as necessary.
Support damaged or leaking	Inspect for damage. Repair as necessary.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

DELAYED OR SOFT FORWARD ONLY

Possible Component	Reference/Action
206 - ROUTINE
Powertrain Control System
PCM, external vehicle wiring harnesses, transmission internal harness, line pressure solenoid (PC-A)	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
PC-A, Solenoid damaged, stuck or bore damaged. Manual valve or solenoid damaged, stuck or bore damaged	If damaged or parts are missing, install a new PCA-A solenoid or solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. Repair as necessary. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. Repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Repair as necessary. If damaged, install a new pump.
Control valves, springs or seal damaged, stuck or not assembled correctly	Inspect for damage. Repair as necessary. If damaged, install a new seal or pump assembly.
OD OWC
Mechanical diode engaged in both directions, struts missing, OWC damaged	Inspect for rotation in one direction only. Mechanical diode should overrun in the opposite direction. Install a new OWC if damaged or fails inspection.
Forward Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Low/Reverse OWC
Mechanical diode engaged in both directions, struts missing, OWC damaged	Inspect for rotation in one direction only. Mechanical diode should overrun in the opposite direction. Install a new OWC if damaged or fails inspection.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

NO FORWARD AND NO REVERSE

Possible Component	Reference/Action
207 - ROUTINE
Powertrain Control System
PCM, external vehicle wiring harnesses, transmission internal harness, line pressure solenoid PC-A	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM.
	GO to PINPOINT TEST E . Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressure
Low pressure	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow the pressure diagnosis test as required.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
PC-A solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged. Line pressure blowoff valve damaged.	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Input Shaft
Shaft damaged	Inspect for damage. Repair as necessary.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. If damaged, install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly, skill orifice plugged, LPC air bleed plugged	Inspect for damage. If damaged, install a new seal or pump assembly.
Center Shaft Assembly
Shaft damaged.	Inspect for damage. Repair as necessary.
Overdrive one-way clutch damaged	Inspect for damage. Repair as necessary.
Center Support
Feed bolt not tightened to specification	Tighten to specification.
FWD clutch seal rings damaged	Inspect for damage. Repair as necessary.
Support damaged or leaking	Inspect for damage. Repair as necessary.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Output Shaft
Shaft damaged.	Inspect for damage. Repair as necessary.
Torque Converter
Flexplate, adapter plate, turbine hub or impeller hub damaged	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.

HARSH FORWARD AND HARSH REVERSE

Possible Component	Reference/Action
208 - ROUTINE
Powertrain Control System
NOTE: The battery being disconnected or a PCM reflash will cause firm engagements. PCM, external vehicle wiring harnesses, transmission internal harness, line pressure solenoid PC-A, torque converter clutch solenoid TCC, TSS/Intermediate shaft speed sensor, TFT and TR-P sensors, IAT, ECT, PTO	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. If the battery has been disconnected or the PCM has been reflashed, carry out the engagement schedule update. GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST C , GO to PINPOINT TEST D and GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressures
High pressures	Check line pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow pressure diagnosis and repair as required.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
PC-A, TCC solenoid(s) damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged. Blowoff valve damaged.	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly, blowoff valve damaged.	Inspect for damage. Install a new seal or pump assembly.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

DELAYED FORWARD AND DELAYED REVERSE

Possible Component	Reference/Action
209 - ROUTINE
Powertrain Control System
PCM, external vehicle wiring harnesses, transmission internal harness, line pressure solenoid PC-A, IAT, ECT	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressures
Low pressures	Check line pressure at line tap. Check pressure at line tap.
	Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow pressure diagnosis and repair as required.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck, or bore damaged.	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOME/ALL SHIFTS MISSING

Possible Component	Reference/Action
210 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids SSPC-A, SSPC-B, SSPC-C, SSPC-D, SSPC-E, Torque Converter Clutch (TCC) solenoid, line pressure control solenoids PC-A, TSS/Intermediate shaft speed sensor, Output Shaft Speed (OSS) sensor, Transmission Range (TR-P) sensor, Transmission Fluid Temperature (TFT) sensor, Accelerator Pedal Position (APP) sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST C , GO to PINPOINT TEST D , GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Some Shifts Missing Only
	If only some shifts are missing, determine which shift(s) do not occur. Use the Band, Clutch, Solenoid, Switch Application Chart and monitor the appropriate PIDs. Refer to SPECIAL TESTING PROCEDURES .
Fluid
Incorrect level	Adjust fluid to correct level. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck, or bore damaged.	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Coast Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Check ball damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new drum.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
OD OWC
Mechanical diode engaged in both directions, struts missing, OWC damaged	Inspect for rotation in one direction only, mechanical diode should overrun in the opposite direction. Install a new OWC if damaged or fails inspection.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Cup plug missing, plugged or damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Forward Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a center support assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.
Low/Reverse OWC
Mechanical diode engaged in both directions, struts missing, OWC damaged	Inspect for rotation in one direction only, mechanical diode should overrun in the opposite direction. Install a new OWC if damaged or fails inspection.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new transmission case if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.
Torque Converter
Internal failure	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.

TIMING CONCERNS - EARLY/LATE

Possible Component	Reference/Action
211- ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, tow/haul switch, accelerator pedal position (APP) sensor, IAT sensor, ECT sensor, 4x4 switch	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Some Shifts Early/Late Only
	If only some shifts are early/late, determine which shift(s) is missing. Refer to the following routine(s) for further Soft/Slipping Shift concerns: Soft/Slipping 1-2 Shift, Routine 226 Soft/Slipping 2-3 Shift, Routine 227 Soft/Slipping 3-5 Shift, Routine 228 Soft/Slipping 4-6 Shift, Routine 229 Soft/Slipping 5-6 Shift, Routine 230 Soft/Slipping 6-5 Shift, Routine 231 Soft/Slipping 6-4 Shift, Routine 232 Soft/Slipping 5-3 Shift, Routine 233 Soft/Slipping 3-2 Shift, Routine 234 Soft/Slipping 2-1 Shift, Routine 235
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION . Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump assembly.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a center support assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new transmission case if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.

TIMING CONCERNS - ERRATIC/HUNTING (SOME/ALL)

Possible Component	Reference/Action
212 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids SSPC-A, SSPC-B, SSPC-C, SSPC-D, SSPC-E, line pressure control solenoids PC-A, TSS/intermediate shaft speed sensor, output shaft speed (OSS) sensor, transmission range (TR-P) sensor, transmission fluid temperature (TFT) sensor, tow/haul switch, accelerator pedal position (APP) sensor, brake pedal position (BPP) sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM, APP, and BPP sensors.
FMEM enabled. See Diagnosis By Symptom Index Directions .	GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST C , GO to PINPOINT TEST D , GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid(s) damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Further Diagnosis
For further diagnosis for timing issues, refer to Reference/Actions	Refer to the following routine(s) for specific diagnosis: Soft/Slipping 1-2 Shift, Routine 226 Soft/Slipping 2-3 Shift, Routine 227 Soft/Slipping 3-5 Shift, Routine 228 Soft/Slipping 4-6 Shift, Routine 229 Soft/Slipping 5-6 Shift, Routine 230 Soft/Slipping 6-5 Shift, Routine 231 Soft/Slipping 6-4 Shift, Routine 232 Soft/Slipping 5-3 Shift, Routine 233 Soft/Slipping 3-2 Shift, Routine 234 Soft/Slipping 2-1 Shift, Routine 235 Harsh 1-2 Shift, Routine 236 Harsh 2-3 Shift, Routine 237 Harsh 3-5 Shift, Routine 238 Harsh 4-6 Shift, Routine 239 Harsh 5-6 Shift, Routine 240 Harsh 6-5 Shift, Routine 241 Harsh 6-4 Shift, Routine 242 Harsh 5-3 Shift, Routine 243 Harsh 3-2 Shift, Routine 244 Harsh 2-1 Shift, Routine 245
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or pocket damaged	Inspect for damage. Install a new pump assembly.
Control valves, springs, or seal damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Coast Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Check ball damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new drum.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Forward Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a center support assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new transmission case if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.

FEEL - SOFT/SLIPPING (SOME/ALL)

Possible Component	Reference/Action
213 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-B, line pressure control solenoids PC-A, TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST D and GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Some Shifts Soft/Slipping Only
	If only some of the shifts are soft/slipping, determine which shift(s) is missing. Refer to the following routine(s) for further Soft/Slipping concerns: Soft/Slipping 1-2 Shift, Routine 226 Soft/Slipping 2-3 Shift, Routine 227 Soft/Slipping 3-5 Shift, Routine 228 Soft/Slipping 4-6 Shift, Routine 229 Soft/Slipping 5-6 Shift, Routine 230 Soft/Slipping 6-5 Shift, Routine 231 Soft/Slipping 6-4 Shift, Routine 232 Soft/Slipping 5-3 Shift, Routine 233 Soft/Slipping 3-2 Shift, Routine 234 Soft/Slipping 2-1 Shift, Routine 235
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump assembly.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.

FEEL - HARSH (SOME/ALL)

Possible Component	Reference/Action
214- ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids SSPC-B, TSS/intermediate shaft speed sensor, output shaft speed (OSS) sensor, transmission fluid temperature (TFT) sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Some Shifts Harsh Only
	If only some of the shifts are harsh, determine which shift(s) is missing. Refer to the following routine(s) for further Harsh Shift concerns: Harsh 1-2 Shift, Routine 236 Harsh 2-3 Shift, Routine 237 Harsh 3-5 Shift, Routine 238 Harsh 4-6 Shift, Routine 239 Harsh 5-6 Shift, Routine 240 Harsh 6-5 Shift, Routine 241 Harsh 6-4 Shift, Routine 242 Harsh 5-3 Shift, Routine 243 Harsh 3-2 Shift, Routine 244 Harsh 2-1 Shift, Routine 245
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Torque Converter
Internal failure	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter. Refer to : TCC always applied/stalls vehicle.

NO FIRST GEAR IN DRIVE, ENGAGES IN A HIGHER GEAR

Possible Component	Reference/Action
215 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids SSPC-B, line pressure solenoid PC-A (shorted to ground), TCC solenoid (shorted to ground), TSS sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST D and GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
OD OWC
Mechanical diode engaged in both directions, struts missing, OWC damaged	Inspect for rotation in one direction only. Mechanical diode should overrun in the opposite direction. Install a new OWC if damaged or fails inspection.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Low/Reverse OWC
Mechanical diode engaged in both directions, struts missing, OWC damaged	Inspect for rotation in one direction only. Mechanical diode should overrun in the opposite direction. Install a new OWC if damaged or fails inspection.
Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a case if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.
Torque Converter
FMEM default mode applying the torque converter clutch	Refer to FMEM routine 265. See Diagnosis By Symptom Index Directions .

NO FIRST GEAR IN MANUAL 1 POSITION

Possible Component	Reference/Action
216 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Coast Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Overdrive OWC Assembly
Worn, damaged or not assembled correctly	Inspect for damage. Repair as necessary.
Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged.	Inspect for damage. Repair as necessary.

NO SECOND GEAR IN MANUAL 2 POSITION

Possible Component	Reference/Action
217 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Input Shaft
Shaft damaged	Inspect for damage. Repair as necessary.
Overdrive Clutch Assembly (failed off)
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

NO THIRD GEAR IN MANUAL 3 POSITION

Possible Component	Reference/Action
218 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Coast Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Check ball damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new drum assembly.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new cylinder.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 1-2 SHIFT

Possible Component	Reference/Action
226 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-B (overdrive clutch control solenoid), TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSP-C solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 2-3 SHIFT

Possible Component	Reference/Action
227 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-B, SSPC-C, TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B, SSPC-C solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 3-5 SHIFT

Possible Component	Reference/Action
228 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-C, SSPC-D, TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-C, SSPC-D Solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Center Support
Feed bolt not tightened to specification	Tighten to specification.
FWD clutch seal rings damaged	Inspect for damage. Repair as necessary.
Support damaged or leaking	Inspect for damage. Repair as necessary.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new cylinder.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 4-6 SHIFT

Possible Component	Reference/Action
229 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, pressure control solenoids, SSPC-C, SSPC-D, TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-C, SSPC-D, solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new drum.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 5-6 SHIFT

Possible Component	Reference/Action
230 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, pressure control solenoid SSPC-B	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B, solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 6-5 SHIFT

Possible Component	Reference/Action
231 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoid SSPC-B, TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 6-4 SHIFT

Possible Component	Reference/Action
232 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoid SSPC-C, SSPC-D, TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-C, SSPC-D, solenoid damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 5-3 SHIFT

Possible Component	Reference/Action
233 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoid, SSPC-C, SSPC-D, TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-C, SSPC-D, solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new drum.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 3-2 SHIFT

Possible Component	Reference/Action
234 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoid, SSPC-B, SSPC-C, TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B, SSPC-C, solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

SOFT/SLIPPING 2-1 SHIFT

Possible Component	Reference/Action
235 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, pressure control solenoid SSPC-B, TSS/Intermediate shaft speed sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump assembly if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 1-2 SHIFT

Possible Component	Reference/Action
236 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoid SSPC-B, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 2-3 SHIFT

Possible Component	Reference/Action
237 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoid SSPC-B, SSPC-C, TCC solenoid, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B, SSPC-C, TCC solenoid(s) damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new drum.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 3-5 SHIFT

Possible Component	Reference/Action
238 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoid SSPC-C, SSPC-D, TCC solenoid, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-C, SSPC-D, TCC solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 4-6 SHIFT

Possible Component	Reference/Action
239 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, SSPC-C, SSPC-D, TCC solenoid, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-C, SSPC-D, TCC solenoid(s) damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 5-6 SHIFT

Possible Component	Reference/Action
240 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoid SSPC-B, TCC solenoid, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B, TCC solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 6-5 SHIFT

Possible Component	Reference/Action
241 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoid SSPC-B, TCC solenoid, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B, TCC solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 6-4 SHIFT

Possible Component	Reference/Action
242 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoids, SSPC-C, SSPC-D, TCC solenoid, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-C, SSPC-D, TCC solenoid(s) damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 5-3 SHIFT

Possible Component	Reference/Action
243 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoid SSPC-C, SSPC-D, TCC solenoid, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-C, SSPC-D TCC solenoid(s) damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 3-2 SHIFT

Possible Component	Reference/Action
244 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-B, SSPC-C, TCC solenoid, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B, SSPC-D, TCC solenoid(s) damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 2-1 SHIFT

Possible Component	Reference/Action
245 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-B, TSS/Intermediate shaft speed sensor, OSS sensor, TFT sensor	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B solenoid damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 6-5 COAST DOWNSHIFT IN TOW HAUL MODE

Possible Component	Reference/Action
246 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-A, SSPC-B, TCC solenoid	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-A, SSPC-B, TCC solenoid(s) damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Coast Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

HARSH 5-3 COAST DOWNSHIFT IN TOW HAUL MODE OR TO MANUAL THIRD

Possible Component	Reference/Action
247 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-A, SSPC-C, SSPC-D, TCC solenoid(s), TSS/Intermediate shaft speed sensors, TFT sensor, PTO input	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-A, SSPC-C, SSPC-D, TCC solenoid(s) damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Coast Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Torque Converter
Internal failure	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.

HARSH 3-2 COAST DOWNSHIFT IN TOW HAUL MODE OR TO MANUAL SECOND

Possible Component	Reference/Action
248 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-B, SSPC-C, SSPC-E, TCC solenoid, TSS/Intermediate shaft speed sensors, TFT sensor, PTO input	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-B, SSPC-C, SSPC-E, TSS solenoid(s) damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Coast Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Intermediate Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new center support if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Torque Converter
Internal failure	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.

HARSH 2-1 COAST DOWNSHIFT IN TOW HAUL MODE OR TO MANUAL FIRST

Possible Component	Reference/Action
249 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids, SSPC-A, SSPC-B, TCC solenoid, TSS/Intermediate shaft speed sensors, TFT sensor, PTO input	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-A, SSPC-B, TSS solenoid(s) damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Coast Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Overdrive Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new pump if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case if damaged.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.

TCC DOES NOT APPLY

Possible Component	Reference/Action
250 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal wiring harness, transmission line pressure solenoid PC-A, TCC, TFT, Transmission Range (TR-P) sensor, OSS	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST C , GO to PINPOINT TEST D and GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Incorrect Pressures
Low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
SSPC-A, SSPC-B, TCC solenoid(s) damaged, misassembled, missing, stuck or bore damaged. Manual valve damaged, misassembled, missing, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, converter charge limit valve, converter pressure regulator valve springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Torque Converter
Internal failure preventing TCC to apply	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedure portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.

TCC ALWAYS APPLY/STALLS VEHICLE

Possible Component	Reference/Action
251 - ROUTINE
Powertrain Control System
Torque Converter Clutch (TCC) Solenoid	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Incorrect Pressures
High TCC pressure	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
TCC solenoid damaged, misassembled, missing, stuck or bore damaged. Manual valve damaged, misassembled, missing, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, converter charge limit valve, converter pressure regulator valve springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Torque Converter
Internal failure preventing TCC from applying	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.

TCC CYCLING, SHUDDER, CHATTER

Possible Component	Reference/Action
252 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal wiring harness, line pressure control solenoid PC-A, TCC, BPP, ECT sensors, tow haul switch.	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Incorrect Pressures
High/low TCC pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
PC-A, TCC solenoid(s) damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Install a new pump.
Control valves, converter charge limit valve, converter pressure regulator valve springs, or seals damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Torque Converter
Internal components failure	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.

ERRATIC TCC SCHEDULING

Possible Component	Reference/Action
253 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal wiring harness, TCC solenoid, OSS sensor, Transmission Range (TR-P) sensor, APP sensor, BPP sensor, ECT sensor, PTO input, 4x4 switch, tow haul switch TFT sensor,	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST B .
FMEM enabled causing the TCC to engage, disengage then engage. DTC P0741 present	Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
TCC solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Torque Converter
Internal component failure	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.

SHIFT LEVER EFFORT HIGH

Possible Component	Reference/Action
254 - ROUTINE
External Shift Cable System
Cable system damaged, misaligned	Inspect and repair as necessary. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS .
Transmission Range (TR-P) Sensor Assembly
TR-P sensor assembly damaged, manual valve inner lever pin bent or inner lever damaged	Inspect and repair as necessary. Refer to DIGITAL TRANSMISSION RANGE (TR) SENSOR .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Contamination	Disassemble and clean.
Manual valve damaged, misassembled, stuck, or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Transmission Case
Manual control lever assembly damaged, manual valve inner lever pin bent, manual valve inner lever damaged, spring rod damaged	Inspect parts for damage. Install new parts if damaged.
Manual lever assembly pin incorrectly installed	Inspect parts. If parts are found to be installed incorrectly, refer to TRANSMISSION .
Parking pawl incorrectly installed	Inspect parts. If parts are found to be installed incorrectly, refer to TRANSMISSION .

EXTERNAL LEAKS

Possible Component	Reference/Action
255 - ROUTINE
Powertrain Control System
TSS/Intermediate shaft speed sensor, OSS sensor, transmission bulkhead connector	Inspect for leakage. If areas around sensor or bulkhead connector show signs of leakage, install a new sensor O-ring seal.
Fluid
Incorrect level	Adjust fluid to the correct level. Refer to PRELIMINARY INSPECTION .
Transmission External Remote Filter
	Inspect for leakage. If damaged, repair as necessary.
Incorrect Pressures
High/low pressures	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoid(s) damaged, stuck or bore damaged. Manual valve stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
O-ring damaged	Inspect for damage. If damaged, install a new gasket.
Porosity	Inspect for damage. If damaged, repair as necessary.
Transmission Case Assembly
Case vent damaged, case porosity	Inspect for damage. If damaged, repair as necessary
Seals/Gaskets
Leakage at gaskets, seals	Refer to LEAKAGE INSPECTION . Remove all traces of lubricant on exposed surface of the transmission. Repair as necessary.

DRIVEABILITY CONCERNS

Possible Component	Reference/Action
256 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, transmission pressure control solenoids SSPCx, TCC solenoid, OSS, TFT sensors, transmission control tow/haul switch, APP, IAT, ECT sensors	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST D , and GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Torque Converter
Torque internal components damaged	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.
Incorrect torque converter used in overhaul	Inspect for correct torque converter assembly. If not correct, install a new or remanufactured torque converter.

NOISE/VIBRATION FORWARD OR REVERSE

Possible Component	Reference/Action
257 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, PTO assembly	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust fluid to the correct level. Refer to PRELIMINARY INSPECTION .
External Shift Cable System
Cable system damaged, misaligned, grounding out	Inspect and repair as necessary. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS .
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole gears cracked or seized	Inspect for damage. If damaged, repair as necessary.
One-Way Clutches
Worn, damaged or assembled incorrectly	Inspect for damage. Repair as necessary
Other
Transmission fluid cooling lines, fill tube grounding, driveshaft damaged	Relocate cooling line or fill tube correctly. Inspect for damage. Repair as necessary.
Gears
Gear noise	Inspect for damage. Repair as necessary.
Torque Converter Assembly
Flexplate, converter assembly damaged	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.

ENGINE WILL NOT CRANK

Possible Component	Reference/Action
258 - ROUTINE
Powertrain Control System
NOTE: If the battery has been disconnected or is dead, the transmission shifts and engagements will feel firm. Carry out Routine 267. PCM, vehicle wiring harnesses, vehicle starter transmission internal harness, transmission range (TR-P) sensor, PATS module	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM.
	GO to PINPOINT TEST C . Check PIDs for TR-P, PARK and NEUTRAL Repair as required. Clear DTCs, road test and carry out on-board diagnostic test again.
Engine Components
Sensors, solenoids, fan clutch damages, shorted to power or ground.	Refer to ENGINE - 6.0L DIESEL for engine concerns. Refer to the INTRODUCTION - GASOLINE article. Refer to the .
Vehicle Starter
Starter damaged	Inspect and repair as necessary. Refer to STARTING SYSTEM - DIESEL ENGINE .
External Shift Cable System
Cable system damaged, misaligned	Inspect and repair as necessary. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS .
TR-P Sensor Assembly
TR-P assembly damaged	Inspect and repair as necessary.
Fluid Pump Assembly
Internal parts seized	Inspect for damage and repair as necessary.
Torque Converter
Flexplate damaged	Inspect for damage and repair as necessary.

NO PARK RANGE

Possible Component	Reference/Action
259 - ROUTINE
Shift Cable System
Cable system damaged, misaligned	Inspect and repair as necessary. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS .
TR-P Assembly
TR-P assembly damaged	Inspect and repair as necessary.
Transmission Case
Manual control lever assembly damaged, manual valve inner lever pin bent, manual valve inner lever damaged, spring rod damaged	Inspect for damage. If damaged, install new components.
Manual valve lever shaft retaining pin damaged	Inspect for damage. If damaged, repair as necessary.
Park System
Park gear, parking pawl, parking pawl return spring, park or guide plate, parking actuating rod, parking pawl shaft, manual lever, manual lever detent spring damaged or misassembled	Inspect for damage. Repair as necessary.
External linkages/brackets damaged	Inspect for damage. Repair as necessary.

TRANSMISSION OVERHEATING

Possible Component	Reference/Action
260 - ROUTINE
Powertrain Control System
NOTE: FMEM may be enabled, refer to . PCM, vehicle wiring harnesses, line pressure control solenoid PC-A, TCC solenoid	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM.
	GO to PINPOINT TEST A and GO to PINPOINT TEST E . Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust fluid to correct level. Refer to PRELIMINARY INSPECTION .
Transmission External Remote Filter
	Inspect for leakage. If damaged, repair as necessary.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole gears cracked or seized	Inspect for damage. If damaged, repair as necessary.
Control valves and springs or seal damaged, misassembled or stuck	If damaged or parts are missing, install a new seal or pump assembly. If misassembled, reassemble correctly.
Transmission Case
Case vent damaged	Inspect for damage. If damaged, repair as necessary
Torque Converter
Torque converter one-way clutch seized	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section. If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.
Excessive torque converter slip detected	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER in the General Procedures portion of this section If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.
Other
Restriction in transmission cooling system	Check transmission cooling system efficiency. Refer to TRANSAXLE/TRANSMISSION COOLING .
Excessive trailer tow load	Refer to the .
Engine driveability concerns	Check engine driveability concerns. Refer to ELECTRONIC ENGINE CONTROLS - GASOLINE ENGINES and ELECTRONIC ENGINE CONTROLS - DIESEL ENGINE .
Vehicle heat shields missing or damaged	Inspect for damage. If damaged, repair as necessary.
Vehicle air flow restricted	Inspect for damage. If damaged, repair as necessary.

FLUID VENTING OR FOAMING

Possible Component	Reference/Action
261 - ROUTINE
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
Condition	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Transmission Case Assembly
Case vent damaged	Inspect for damage. Repair as necessary.
Other
Transmission overheating	Refer to .

UNEXPECTED ELEVATED IDLE SPEED

Possible Component	Reference/Action
262 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, internal transmission wiring harness, line pressure control solenoid SSPC-A, TSPC driver circuit, TCC solenoid, OSS, TFT, TR-P sensors PTO input	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM.
	GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST C and GO to PINPOINT TEST D .
FMEM has been enabled. Refer to .	Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.
PTO Module Assembly
Module damaged	Refer to the INTRODUCTION - GASOLINE article for diagnosing and testing the PTO module.

NO TOW/HAUL MODE

Possible Component	Reference/Action
263 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, internal transmission wiring harness, transmission control tow/haul switch, transmission control indicator lamp (TCIL) tow/haul	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS . Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.

REVERSE LAMPS DO NOT ILLUMINATE

Possible Component	Reference/Action
264 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, internal transmission wiring harness, TR-P sensor, reverse lamps	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST C . Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.

TRANSMISSION FAILURE MODE EFFECTS MANAGEMENT (FMEM), SHIFT CONCERNS: ERRATIC/HUNTING OR ERRATIC SCHEDULING

Possible Component	Reference/Action
265 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, TSS/intermediate shaft speed sensor, OSS sensor, TR-P sensor, TFT sensor, TCIL, tow/haul switch, TSPC driver circuit.	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST B , GO to PINPOINT TEST C , GO to PINPOINT TEST D and GO to PINPOINT TEST E . Repair as required. Clear DTCs, road test and rerun on-board diagnostic test. Refer to .
The transmission FMEM serves three purposes: Prevents invalid combinations of applied clutches that cause tie-ups Isolates a potential fault down to a specific pressure switch, solenoid, or clutch Limits gears of operation based on the failure after the fault had been isolated	When failures occur the customer may complain of erratic shifting or transmission hanging in gear. This is normal for the FMEM strategy. Determine which gears are being commanded, and which gears are being avoided, and this will in turn point to a specific pressure switch, solenoid, or clutch fault.

PTO CONCERNS

Possible Component	Reference/Action
266 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, PTO switch, PTO input, parking brake switch, BPP, TFT, TSS sensors required for correct elevated idle and TCC engagements in PARK and NEUTRAL and for correct line pressure	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST B and GO to PINPOINT TEST D . Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.

ENGAGEMENT SCHEDULE UPDATE (DEAD BATTERY, DISCONNECTED BATTERY, CALIBRATION UPDATED)

Possible Component	Reference/Action
267 - ROUTINE
Battery
Any time the vehicle battery has been disconnected, a new PCM has been installed or the vehicle calibration has been reflashed the adaptive strategy for the "Engagement Schedule" will need to be updated. This will prevent the customer from returning with firm engagements.	NOTE: All of the following engagements must be carried out in order for engagement pressures to correctly adapt with the new calibration. Once the vehicle's battery has been reconnected or the reprogramming is complete, the adaptive strategy for pressure control on engagements must be updated. Install the diagnostic equipment and monitor TFT. Warm the transmission fluid to 54°C (130°F) as indicated by the TFT. Carry out five engagements from PARK to REVERSE. Each engagement must be five seconds apart. Carry out five engagements from DRIVE to REVERSE. Each engagement must be five seconds apart. Carry out five engagements from REVERSE to DRIVE. Each engagement must be five seconds apart. Carry out five engagements from NEUTRAL to DRIVE. Each engagement must be five seconds apart.