Shift Concerns: Some/All Shifts Missing (Automatic Mode Only)

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SHIFT CONCERNS: SOME/ALL SHIFTS MISSING (AUTOMATIC MODE ONLY)

Possible Component	Reference/Action
210 - ELECTRICAL ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, TR sensor, intake manifold air temperature (IAT) sensor, vehicle speed sensor (VSS) input, SSA, SSB, SSC, SSD SSE and pressure control solenoid (PCA).	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST C , GO to PINPOINT TEST D and GO to PINPOINT TEST E . Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test.
310 - HYDRAULIC/MECHANICAL ROUTINE
Some Shifts Missing ONLY
	If only some of the shifts are missing, determine which shift(s) is missing. Refer to the following routine(s) for further No Shift Concerns: No 1-2 Shift, Routine 220/320 No 2-3 Shift, Routine 221/321 No 3-4 Shift, Routine 222/322 No 4-3 Shift, Routine 223/323 No 3-2 Shift, Routine 224/324 No 2-1 Shift, Routine 225/325
Fluid
Incorrect level.	Adjust to correct level. Refer to PRELIMINARY INSPECTION in this article.
Condition.	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION in this article.
Shift Cable/TR Sensor
Cable system or TR sensor damaged, misaligned.	Inspect and repair as required. For shift cable information, refer to AUTOMATIC TRANSAXLE-TRANSMISSION EXTERNAL CONTROLS . For TR sensor information, refer to TRANSMISSION RANGE (TR) SENSOR in this article.
Incorrect Pressures
High/low pressures.	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES in this article.
Main Control
Bolts not tightened to specification.	Tighten to specifications.
Separator plate damaged.	Inspect for damage. If damaged, repair as necessary.
Contamination.	Disassemble and clean.
Valves/springs damaged, misassembled, missing, stuck, or bore damaged.	If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage.
Fluid Pump Assembly
Bolts not tightened to specification.	Tighten to specifications.
Gasket damaged.	Inspect for damage. If damaged, repair as necessary.
Porosity, cross leaks, plugged hole.	Inspect for damage. Repair as necessary.
Direct Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Check balance dam.	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.
Check balance dam.	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.
One-way Clutch
Worn, damaged or assembled incorrectly.	Inspect for damage. Repair as necessary.
Servo
Servo retaining ring damaged	Inspect for damage. Repair as necessary.