Operation CHARM: Car repair manuals for everyone.

Electrical Diagrams



Engine Controls Schematics

ECM Power, Ground, MIL, and Serial Data






5-Volt Reference Bussing






Low Reference Bussing






IAT/MAF, MAP, ECT Sensors, VSS, and Stop Lamp Signals






Heated Oxygen Sensors






Electronic Throttle Controls






Fuel Injectors and Fuel Pump Controls






EVAP Solenoids and FTP Sensor






Ignition Controls Bank 1 (Odd) Ignition Coils






Ignition Controls Bank 2 (Even) Ignition Coils






Ignition Controls - CMP, CKP, and KS Sensors






Controlled/Monitored Subsystem References