Shift Concerns: Some Or All Shifts Missing

DIAGNOSTIC ROUTINES - SHIFT CONCERNS: SOME OR ALL SHIFTS MISSING

Possible Component	Reference/Action
210 - ELECTRICAL ROUTINE
Powertrain Control System
Electrical Inputs/Outputs, Vehicle Wiring Harnesses, Powertrain Control Module (PCM), Shift Solenoids, (SSA, SSB, SSC), TP, MAF, OSS, Digital TR Sensor, Internal Wiring Harness.	Run On-Board Diagnostic. See INTRODUCTION - GASOLINE article for diagnosis. GO to PINPOINT TEST A and GO to PINPOINT TEST D . Refer to PINPOINT TESTS - NON OSC EQUIPPED VEHICLE .
310 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust the fluid to the correct level.
Condition	Inspect fluid condition. Refer to PRELIMINARY INSPECTION .
Shift Linkage (Internal/External)
Damaged, out of adjustment	Inspect and repair as required. Verify linkage adjustment. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS . After adjusting the linkage, verify that the digital TR sensor is correctly adjusted; refer to DIGITAL TRANSMISSION RANGE (TR) SENSOR .
Vehicle Speed Input
Insufficient, erratic or no input received by the PCM from the OSS sensor.	Inspect the OSS sensor. GO to PINPOINT TEST G .
Fluid Filter and Seal Assembly
Plugged, missing	Inspect. Install a new as required.
Apply and Release Fluid Tubes
Damaged, missing	Inspect for damage. Install a new as required.
Seal or O-ring - damaged	Inspect for damage. Install a new as required.
Forward Support, Driven Sprocket
Seals - damaged	Inspect for damage. Install a new as required.
Holes - blocked	Inspect for damage. Repair as required.
Planetary Gear Sets
Damaged	Inspect for damage. Install a new as required.
One-Way Clutch Assembly
Damaged	Inspect for damage. Install a new as required.
Other Components
Clutches	Inspect for damage. Install a new as required.
Output Shafts (Differential)	Inspect for damage. Install a new as required.
Overdrive Band	Inspect for damage. Install a new as required.
Powerflow Components	Inspect for damage. Repair as required.
Go to Reference/Action	Refer further diagnosis, see the appropriate shift routine(s):
Shift Concern: No 1-2	Routine 220/320
Shift Concern: No 2-3	Routine 221/321
Shift Concern: No 3-4	Routine 222/322
Shift Concern: No 4-3	Routine 223/323
Shift Concern: No 3-2	Routine 224/324
Shift Concern: No 2-1	Routine 225/325