Shift Solenoid: Testing and Inspection

5R44E and 5R55E

Pinpoint Tests - OSC Equipped Vehicle





Anytime 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 a new connector as required.


Shift Solenoid Pre-Diagnosis

Use the following shift solenoid operation information while carrying out Pinpoint Test A. Pinpoint Test A: Shift And TCC Solenoids

Solenoid Operation Chart:

a PCM Controlled

b On time calibration dependent

Shift Solenoid Failure Mode Chart "Always On"

Failed OFF due to PCM and/or vehicle wiring concerns, solenoid electrically, mechanically or hydraulically stuck ON.


















Shift Solenoid Failure Mode Chart "Always Off"

Failed ON due to PCM and/or vehicle wiring concerns, solenoid electrically, mechanically or hydraulically stuck OFF.










a During Downshift Only

b During Upshift Only