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

Electrical Diagrams



Engine Controls Schematics

Power, Ground, Serial Data, and MIL






Engine Data Sensors - Pressure and Temperature Controls






Accelerator Pedal Position (APP) Sensor and Electronic Throttle Control (ETC)






Engine Data Sensors - Oxygen Sensors






Ignition Controls - Camshaft Position (CMP) Actuators






Ignition Controls - Camshaft Position (CMP), Rough Road, and Crankshaft Position (CKP) Sensors






Fuel Pump Controls and Injectors






Fuel Tank Pressure (FTP) Sensor and Evaporative Emission (EVAP) Valves






Controlled/Monitored Subsystem References