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

Module Power, Ground, Data Communication, I/P Switch, and Liftgate Motor


Object Number: 1844198  Size: FS
Master Electrical Component List
Rear Hatch/Gate Description and Operation
Control Module References
Indicator, Latch, Object Sensors, and Switches
B+ Bus 1 of 2
AIRBAG, AMP, BATT 1, BCM, CNSTR/VENT, CSTY, DISPLAY, INADV/PWR/LED, INFOTAINMENT, MSM, POWER MOD, and RADIO Fuses
AIRBAG, AMP, BATT 1, BCM, CNSTR/VENT, CSTY, DISPLAY, INADV/PWR/LED, INFOTAINMENT, MSM, POWER MOD, and RADIO Fuses
AIRBAG, AMP, BATT 1, BCM, CNSTR/VENT, CSTY, DISPLAY, INADV/PWR/LED, INFOTAINMENT, MSM, POWER MOD, and RADIO Fuses
Data Communication Schematics
Console and Driver Door LEDs
G302 1 of 3
Figure 2:

Indicator, Latch, Object Sensors, and Switches


Object Number: 1844199  Size: FS
Master Electrical Component List
Rear Hatch/Gate Description and Operation
Control Module References
Module Power, Ground, Data Communication, I/P Switch, and Liftgate Motor
Data Communication Schematics