Operation CHARM: Car repair manuals for everyone.

Electrical Diagrams




Remote Function Schematics

Keyless Entry





Master Electrical Component List
Keyless Entry System Description and Operation
Control Module References
Garage Door Opener
Fuse Block - Underhood Bussing
DISPLAY, HDLP MDL, LT SPOT, and RT SPOT Fuses
Data Communication Schematics
G202 and G204

Garage Door Opener





Master Electrical Component List
Garage Door Opener Description and Operation
Control Module References
Keyless Entry
Fuse Block - Underhood Bussing
CHMSL/BCK-UP, ECM/TCM, INT LIGHTS, INT LTS/PNL DIM, LT T/SIG, ONSTAR, RT T/SIG, and RVC SEN Fuses
G301