The 1999 GMC Jimmy light-duty is a six-wire harness assembly. The harnesses are stored under the vehicle, along the passenger-side frame crossmember on two-door vehicles or on the driver’s side corner frame rear crossmember on four-door vehicles. The heavy-duty has a 30-amp feed wire with an inline fuse located by the junction block. 1999 GMC Jimmy Harness Color Code are as follows:

Dark Blue: Use for electric trailer brakes or auxiliary wiring.
Brown: Taillamps and parking lamps.
Yellow: Left stoplamp and turn signal.
Dark Green: Right stoplamp and turn signal.
White (Heavy Gauge): Ground wire.
White (Light Gauge): Auxiliary stoplamp.



Related Post

Toyota Corolla Wiring Diagram and Electrical System (1983)
2000 Jeep XJ Heating and Air Conditioning System - Testing and Troubleshooting
Isuzu Trooper Starting System Circuit and Wiring Diagram (98 - 02)
Yamaha FZR400 Digital Ignition Control System
2006 Toyota Hilux Shift Lock Wiring Diagram