Test A: Shift Solenoid
Pinpoint Tests - Non OSC Equipped VehicleSpecial Tool(s) (Part 1):
Special Tool(s) (Part 2):
Any time an electrical connector or solenoid body is disconnected, inspect the connector for terminal condition, corrosion and contamination. Also inspect the connector seal for damage. Clean, repair or install new components as required.
Digital Transmission Range (TR) Sensor Diagnosis Chart (Part 1):
Digital Transmission Range (TR) Sensor Diagnosis Chart (Part 2):
Wiggle Test Information for Open/Shorts
A. TR4, TR3A, TR2 and TR1 are all closed in PARK. PARK is a good position to check for intermittent open circuits (with scan tool monitoring TRD).
B. TR4, TR3A, TR2 and TR1 are all open in OVERDRIVE, so OVERDRIVE is a good position to check for shorts to ground. To determine the shorted components while observing TRD, unplug the TR and determine if the short goes away. If the short is still present unplug the transaxle harness and determine if the short goes away. If the short is still present, then the short is in the PCM or vehicle harness. Remove the suspect circuit(s) wire terminal from the PCM connector. If the short is still present, then the PCM has an internal failure. Otherwise, the failure is in the vehicle harness.
Shift Solenoid Pre-Diagnosis
Use this shift solenoid operation information when carrying out Pinpoint Test A.
Solenoid Operation Chart:
Shift Solenoid Failure Mode Chart "Always Off"
Failed OFF due to powertrain control module and/or vehicle wiring concerns, and/or solenoid electrically stuck off and/or hydraulically stuck off.
Shift Solenoid Failure Mode Chart "Always On"
Failed ON due to powertrain control module (PCM) and/or vehicle wiring concerns; solenoid electrically or mechanically stuck on.
PINPOINT TEST A: SHIFT SOLENOID
A1-A2:
A2-A3:
A3-A4:
A4:
A4:
A5-A7:
A7-A8:
A8-A10:
A10:
A10-A11:
A11-A12:
