1989 Gmc Back Up Light Wiring. Your best bet would be to remove the tail light and check the color of the power wire coming from the reverse light housing Mine was green. Backup Wiring Kit 36-0735 Includes.
Buy a 1989 GMC C1500 Back Up Light at discount prices. We hope you found the 1995 Chevy G20 wiring diagrams and other schematics helpful. Your Destination for GM Truck Parts.
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Before you dive in with a multi-meter you will want to obtain a free wiring diagram for your specific modelYou may need to locate a specific color wire and its exact location. Wiring Diagrams GMC. Alderson wroteI put in aftermarket reverse lights since I blacked out my tail lights and had to tap into my reverse light for them to turn on when I put the truck into reverse. 1989 WIRING DIAGRAMS R-V P TRUCK MODELS When reference is made in this manual to a brand name number or specific tool an equivalent product may.