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 or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Solenoid Application Chart

Solenoid Application Chart

Solenoid Application 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