GM Service Manual Online
For 1990-2009 cars only

Module Power

Module Power, Ground, Serial Data and MIL


Object Number: 1840327  Size: FS
Master Electrical Component List
Engine Control Component Description
Control Module References
Module Ground, Serial Data, and MIL
Batteries - LG4/LG5 and B+ Bus
Ignition Switch - OFF/RUN/START, RUN/START, and START Busses
ENGINE and PCM-1 Fuses/Circuit Breakers
TRANS Fuse/Circuit Breaker
A/C COMP, HTD FUEL, PCM-B and RR DEFOG Fuses
Batteries - LG4/LG5 and B+ Bus
Engine Data Sensors - EGR Valve and Glow Plug Controls
Engine Data Sensors - Pressure and Temperature 2 of 2
G100 - LG4