Operation CHARM: Car repair manuals for everyone.

Shift Solenoid Diagnostics





Solenoid Operation Chart-CD4E

Shift Solenoid Failure Mode Chart "Always Off"








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

Shift Solenoid Failure Mode Chart "Always On"








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