B3889 GMC
Trailer Brake Lamps
GMC
B3885 GMC
Trailer Left Tail Lamp Circuit
B3886 GMC
Trailer Right Tail Lamp Circuit
B3883 GMC
License Plate Lamp Circuit
B3884 GMC
Center High Mounted Stop Lamp
B3882 GMC
Right Tail Lamp Circuit Short to Ground
B3875 GMC
Windshield Wiper High Speed Relay Circuit
B3881 GMC
Left Tail Lamp Circuit Short to Ground
B3867 GMC
Right Park Lamp Control Circuit
B3873 GMC
Front Washer Relay Circuit