This is the original wiring diagram printed by GM for dealer mechanics. You can follow the wiring in your truck from bumper-to-bumper. It will help you to understand connector configurations, and locate & identify circuits, relays, and grounds. Although the schematic is in black and white, the color of each wire is noted. You will not find this diagram in your shop manual. The schematic measures 8.5" x 11" when folded up, and opens up to 11" by 38". The diagram pictured is an example of this type when folded, but is not the actual diagram for your vehicle. Buy now for the best electrical repair info - the factory wiring diagram.
Wiring Diagrams Light Duty Truck 1985 GMC/Chevy P Truck
This item is original.
11.00 x 8.50 x 0.10 inches
This manual covers 1985 Chevy & GMC forward control truck chassis, including three-quarter ton, one ton, P 20, P 30, P 2500, P3500, forward control chassis, and stepvan. Covers both gasoline and diesel engines. Includes class A forward control motorhomes chassis. This book covers the part of the motorhome manufactured by GM and will not cover motorhome bodies.
1985 Chevrolet P20 Step-Van Standard Cargo Van 2-Door
1985 Chevrolet P20 Stripped Chassis 0-Door
1985 Chevrolet P30 Step-Van Standard Cargo Van 2-Door
1985 Chevrolet P30 Stripped Chassis 0-Door
1985 GMC P2500 Stripped Chassis 0-Door
1985 GMC P2500 Value Van Standard Cargo Van 2-Door
1985 GMC P3500 Stripped Chassis 0-Door
1985 GMC P3500 Value Van Standard Cargo Van 2-Door
1985 Chevrolet P20 1985 Chevrolet P30 1985 GMC P2500 1985 GMC P3500