GM Service Manual Online
For 1990-2009 cars only

ECM Power, Ground, MIL, and Communications

ECM Power, Ground, MIL, and Communication


Object Number: 1338863  Size: FS
Master Electrical Component List
Engine Control Module Description
Engine Data Sensors - Low and 5 Volt References
OBD II Symbol Description Notice
w/L61 - G103, G105, and G207
PWR WDW Relay, PWR WDW, SUNROOF, ABS, ABS PWR, HVAC BLOWER, AUX 1 OUTLET, CIGAR/AUX 2, and ECM/TCM Fuses
IGN Fuse, Ignition Switch, and the Igntion Switch Position Circuits
Battery, Starter, Generator, PSCM, and the B+ Circuits to the Underhood Fuse Block
IGN Fuse, Ignition Switch, and the Igntion Switch Position Circuits
BACKUP, PWR TRAIN, and ABS Fuses
IGN Fuse, Ignition Switch, and the Igntion Switch Position Circuits
IGN 1, BCM(IGN), AIR BAG, EPS, and CRUISE Fuses (I/P Fuse Block)
Indicators and MIL
DLC Schematic