Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la
If it fails: lemon-manuals.org.ua

Or, hide this message: temporarily or permanently

Shift Solenoid Failure Mode Charts



SHIFT SOLENOID FAILURE "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 "ALWAYS ON"











Failed ON due to Powertrain Control Module (PCM) and/or vehicle wiring concerns; solenoid electrically or mechanically stuck ON.