GM Service Manual Online
For 1990-2009 cars only

ECM Power, Ground, MIL, and Serial Data

ECM Power, Ground, MIL, and Serial Data


Object Number: 1555391  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
5 Volt and Low Reference Bussing
Engine Controls Schematic Icons
Fuse Block - Underhood Bussing
Fuse Block - Underhood Bussing
Ignition Switch
Ignition Switch
Ignition Switch
G112 (LS4), and G113 (LS4)
ABS, TRANS, ECM IGN, AIRBAG/DISPLAY, COMPASS, HVAC Fuses and STRTR Relay
BATT 3, BATT 4, ABS MTR, ABS SOL, ECM/TCM, WSW/RVC, and AUX PWR Fuses
EMISSIONS1, EMISSIONS2, A/C CMPRSR Fuses, and A/C CMPRSR Relay
LS4