Operation CHARM: Car repair manuals for everyone.

System Diagram



Engine Controls Schematics

ECM Power, Ground, MIL, and Serial Data






5-Volt Reference Bussing






Low Reference Bussing






BARO, ECT, IAT 2, MAF/IAT, MAP, and Supercharger Air Inlet Pressure Sensors






Heated Oxygen Sensors






Electronic Throttle Controls






Fuel Injectors






Fuel Pump Controls






EVAP Solenoids, FTP Sensor, and Supercharger Bypass Valve Solenoid






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