I have a 1999 Pontiac Grand Prix. I just recently encountered a problem with the fuse #37 (engine compartment fuse block). This fuse controls the (chime/mall module, Tail lamps, Parking Lamps, Side marker lamps and Dimmable Lamps (instrument panel, shifter gear position indicator).
After many hours of eliminating various devices I have narrowed it down.
With a new fuse installed. The fuse will blow when I put the car in reverse. I have completely removed the tail lamps by disconnecting the harness in the trunk, which will rule out any tail lamp/socket/ wire issues. I have removed the console so I can get to the wires and the gear position indicator socket is out and clear of any rubbing.
Does anyone have a wiring diagram for the backup lamp circuit.
Thanks
