Operation CHARM: Car repair manuals for everyone.

System Diagram



Engine Controls Schematics

Module Power, Ground, Serial Data, and MIL






5 Volt 1 and Low Reference






5 Volt 2 and Low Reference






Engine Data Sensors - Pressure and Temperature






Engine Data Sensors - Heated Oxygen Sensors (HO2S)






Engine Data Sensors - Throttle Controls






Ignition Controls - Ignition System Coils






Ignition Controls - Sensors 1 of 2






Ignition Controls - Sensors 2 of 2






Fuel Controls - Fuel Injectors






Fuel Controls - Fuel Pump Controls






Fuel Controls - EVAP Controls






Controlled/Monitored Subsystem References