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

ABS Relay, DIC and EBCM


Object Number: 1908542  Size: FS
Master Electrical Component List
Air ABS Description and Operation
Control Module References
Stop Lamp Switch
DIC
AIRBAG, GAGES, LT REAR TURN/STOP, and RT REAR TURN/STOP Fuses/Circuit Breakers
AIRBAG, GAGES, LT REAR TURN/STOP, and RT REAR TURN/STOP Fuses/Circuit Breakers
G101 - 2 of 2
AXL/4WD, BRK, HYD/AIR BRK, and HTR/AC Fuses/Circuit Breakers
AXL/4WD, BRK, HYD/AIR BRK, and HTR/AC Fuses/Circuit Breakers
AXL/4WD, BRK, HYD/AIR BRK, and HTR/AC Fuses/Circuit Breakers
G100 - L18
G103 - 2 of 2
Data Link Connector Power and Ground
J1939 Serial Data, 2 of 2 - L18 w/JE4, LF6, LF8
ABS-1, ABS-2, ABS-3, E/A PUMP and HORN Fuses/Circuit Breakers
Figure 2:

Stop Lamp Switch


Object Number: 1908544  Size: FS
Master Electrical Component List
Air ABS Description and Operation
Control Module References
BPMV and WSS
ABS Relay, DIC and EBCM
AXL/4WD, BRK, HYD/AIR BRK, and HTR/AC Fuses/Circuit Breakers
AXL/4WD, BRK, HYD/AIR BRK, and HTR/AC Fuses/Circuit Breakers
Engine Data Sensors - Low Reference 2 of 2
Figure 3:

BPMV and WSS


Object Number: 1908547  Size: FS
Master Electrical Component List
Air ABS Description and Operation
Control Module References
BPMV
Stop Lamp Switch
Figure 4:

BPMV


Object Number: 1908549  Size: FS
Master Electrical Component List
Air ABS Description and Operation
Control Module References
BPMV and WSS