Operation CHARM: Car repair manuals for everyone.

System Diagram



Control module engine, schematics

Module Power, Ground, Serial Data, and MIL










5-Volt Reference 1 and 2 as well as Low Reference Bus (1 of 2)










5-Volt Reference 3 and 4 as well as Low Reference Bus (2 of 2)










Engine data sensors - pressure and temperature










Engine data sensors - position sensors and oxygen sensors










Ignition Controls - Ignition System Coils










Ignition Controls - Sensors and Solenoids, as well as Turbocharger Controls










Fuel control - fuel injectors










Fuel Controls - Fuel Pump and EVAP Controls










Controlled/Monitored Subsystem References