GM Service Manual Online
For 1990-2009 cars only

Power, Ground, Serial Data, and MIL Controls

Power, Ground, Serial Data, and MIL Controls


Object Number: 2086481  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - 5-Volt Reference
Ignition Switch and IGN MAIN Relay
ABS, ABS MTR, AUX PWR, AWD, ECMBAT, PWR OUTLET, REAR APO, REAR HVAC, and TCM BAT Fuses
PWR/TRN BUS - ETC/ECM, EVEN COILS/INJ and ODD COILS/INJ Fuses
PWR/TRN BUS - ETC/ECM, EVEN COILS/INJ and ODD COILS/INJ Fuses
PWR/TRN BUS - ETC/ECM, EVEN COILS/INJ and ODD COILS/INJ Fuses
PWR/TRN BUS - EMM DEV 1 and EMM DEV 2
PWR/TRN BUS - EMM DEV 1 and EMM DEV 2
RUN/CRANK BUS - MAF, PCM, IGN, SIR DISPLAY and TRANS Fuses
RUN/CRANK BUS - MAF, PCM, IGN, SIR DISPLAY and TRANS Fuses
G103, G105, G107, G108, and G109
High Speed GMLAN