GM Service Manual Online
For 1990-2009 cars only
Figure 1:

EBCM Power Supply and Communication


Object Number: 654390  Size: FS
Master Electrical Component List
ABS Description and Operation
EBCM Ground Supply and Controls
ING-B Fuse and Ignition Switch
Battery and Underhood Fuse Block
HTR-A/C Fuse 12, BRAKE Fuse 18, and CRUISE Fuse 6
Cruise Control Schematics
Transmission Shift Controls
Class 2 Data
G101, G106 and G302
Figure 2:

EBCM Ground Supply and Controls


Object Number: 654393  Size: FS
Master Electrical Component List
ABS Description and Operation
EBCM Power Supply and Communication
G101, G106 and G302