Section B · Pages 94–143 (50 pages)

Section B: 1989 P Truck

From the 1989 Chevrolet/GMC R/V and P Truck Wiring Diagrams

Wiring diagrams for the 1989 P forward-control truck chassis: fuse block details, start and ignition, power distribution for diesel, 6-cylinder and 8-cylinder engines, head, parking, marker, hazard and directional lamps, horns, wiper and washer, throttle body injection with fuel and idle air control, emission controls for each engine, diesel glow plugs, the M40 kickdown solenoid, ECM inputs, outputs and chart, brake warning, instrument panel lamps and gages, and backup, tail and license lamps.

Read this section free, starting at page 94

What this section covers

  • Fuse block and power distribution
  • Start and ignition
  • Exterior lamps, horns and wipers
  • Throttle body injection and fuel control
  • Emission controls by engine
  • Diesel glow plugs
  • ECM inputs, outputs and chart
  • Instrument panel lamps and gages
Year
1989
Make
GMC
Vehicle
Light Duty Trucks, P Forward Control, R/V Trucks, Trucks
Type
Wiring Diagrams
Models
R-V, P Truck
Publication
X-8940
Pages
143

What’s inside

Wiring diagrams

  1. Description, Circuit Diagnosis and Repairpp. 2–8
  2. ASection A: 1989 R/V Truckpp. 9–93
  3. BSection B: 1989 P Truckpp. 94–143

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