Operation CHARM: Car repair manuals for everyone.

System Diagram



Engine Controls Schematics

Power, Ground, Serial Data and MIL






5V and Low Reference Bus (1 of 2)






5V and Low Reference Bus (2 of 2)






Engine Data Sensors - Pressure and Temperature Controls






Engine Data Sensors - Throttle Controls






Oxygen Sensors and Ignition System






Crankshaft and Camshaft Sensors/Actuators, Knock Sensor






Fuel Controls - Fuel Injectors and EVAP Controls






Fuel Pump Control Module






Controlled/Monitored Subsystem References