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

Keyless Entry - AP3/AP8


Object Number: 1844227  Size: FS
Master Electrical Component List
Keyless Entry System Description and Operation
Control Module References
Garage Door Opener - UG1
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
Data Communication Schematics
G401 1 of 2
Figure 2:

Garage Door Opener - UG1


Object Number: 1844228  Size: FS
Master Electrical Component List
Garage Door Opener Description and Operation
Control Module References
Keyless Entry - AP3/AP8
AIRBAG, AMP, BATT 1, BCM, CNSTR/VENT, CSTY, DISPLAY, INADV/PWR/LED, INFOTAINMENT, MSM, POWER MOD, and RADIO Fuses
Console, I/P, Passenger Door, and Roof Lamp
G402 1 of 2