Operation CHARM: Car repair manuals for everyone.

System Diagram




Engine Controls Schematics (LUK)

Module Power, Ground, Serial Data, and MIL






5V1, and Low Reference Bus (1 of 2)






5V2, 5V3, 5V4, and Low Reference Bus (2 of 2)






Engine Data Sensors - Pressure, Temperature, and Throttle Controls






Engine Data Sensors - Oxygen Sensors






Ignition Controls - Ignition System






Ignition Controls - Camshaft Solenoids, Camshaft, Crankshaft and Knock Sensors






Fuel Controls - Fuel Injectors






Fuel Controls - Fuel Pump Controls






Fuel Controls - Evaporative Emission Controls






Secondary Air Injection (NU6)






Controlled/Monitored Subsystem References