Operation CHARM: Car repair manuals for everyone.

System Diagram



Engine Controls Schematics

ECM Power, Ground, MIL, and Serial Data






5-Volt and Low Reference Bussing






MAP, ECT, and MAF/IAT Sensors






Heated Oxygen Sensors






Electronic Throttle Controls






Ignition Controls Bank 1 (Odd) Ignition Coils






Ignition Controls Bank 2 (Even) Ignition Coils






Ignition Controls, Knock, CMP, and CKP Sensors






Valve Lifter Oil Manifold (VLOM) Assembly (L99)






Fuel Injectors






Fuel Controls - Fuel Pump Flow Control






Fuel Controls - EVAP Controls






Controlled/Monitored Subsystem References