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

Keyless Entry


Object Number: 1757390  Size: FS
Master Electrical Component List
Keyless Entry System Description and Operation
Control Module References
Garage Door Opener
Remote Function Schematic Icons
Remote Function Schematic Icons
Fuse Block - Underhood Bussing
COOLFAN, AMP, HVAC, ABS, MRRTD, ECM/TCM, HORN, BATT 2 Fuses, and HORN, REAR DEFOG Relays
Fuel Door and Rear Compartment Lid Release
Shift Lock Control Schematics
Ignition Mode Switch
Class 2
Actuators and Handle Switches
Horn Schematics
Lamp Controls, and Courtesy, Underhood, I/P Compartment, Vanity Mirrors, Inside Rearview Mirror Lamps
G104 and G106
Figure 2:

Garage Door Opener


Object Number: 1757394  Size: FS
Master Electrical Component List
Garage Door Opener Description and Operation
Control Module References
Keyless Entry
CLUSTER, A.C. LATCH/PK BRK B, DOOR LOCKS, INTERIOR LIGHTS, HVAC/PWR SND, ISRVM/HVAC, TUTD SW/STRG COL SW FUSES, and RUN/CRANK Relay 2
CLUSTER, A.C. LATCH/PK BRK B, DOOR LOCKS, INTERIOR LIGHTS, HVAC/PWR SND, ISRVM/HVAC, TUTD SW/STRG COL SW FUSES, and RUN/CRANK Relay 2
Lamp Controls, and Courtesy, Underhood, I/P Compartment, Vanity Mirrors, Inside Rearview Mirror Lamps
Lamp Controls, and Courtesy, Underhood, I/P Compartment, Vanity Mirrors, Inside Rearview Mirror Lamps
G202