Operation CHARM: Car repair manuals for everyone.

System Diagram




Engine Controls Schematics

Module Power, Ground and Serial Data






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 Coils 1, 3, and 5





Ignition Controls - Ignition Coils 2, 4, and 6





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





Fuel Controls - Fuel Injectors and Fuel Pressure





Fuel Controls - Fuel Pump





Fuel Controls - Fuel Pump and Pressure Sensor





Fuel Controls - Evaporative Emission Controls





Controlled/Monitored Subsystem References