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

Transmission and Drivetrain



1-2 Shift Solenoid (1-2 SS) Valve






2-3 Shift Solenoid (2-3 SS) Valve






A/T Shift Lock Control Solenoid






Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch






Automatic Transmission Fluid Temperature (TFT) Sensor






Automatic Transmission Input Shaft Speed (AT ISS) Sensor






Mode Actuator (C67)






Mode Actuator (CJ2)






Pressure Control (PC) Solenoid Valve






TAP Shift Switch - Left (KB7)






TAP Shift Switch - Right (KB7)






Torque Converter Clutch (TCC) Solenoid Valve






Transmission Control Module (TCM) (LS4 - 5.3L)









Transmission Internal Mode Switch (IMS)