Operation CHARM: Car repair manuals for everyone.

System Diagram




Engine Controls Schematics

Module Power, Ground, Serial Data and MIL






5V1 and Low Reference Bus (1 of 2)






5V2, 5V3, 5V4, and 5V1 and Low Reference Bus (2 of 2)






Engine Data Sensors - Pressure, Temperature, and Throttle Controls






Engine Data Sensors - Heated Oxygen Sensors






Ignition Controls - Ignition System Coils 1, 3 and 5






Ignition Controls - Ignition System Coils 2, 4 and 6






Ignition Controls - CKP, CMP, and Knock Sensors, CMP Actuators






Fuel Controls - Fuel Injectors, FRP Sensor, and High Pressure Fuel Pump






Fuel Controls - Fuel Pump Flow Control






Fuel Controls - EVAP Controls and FTP Sensor






Monitored/Controlled Subsystem References