Section A · Pages 9–93 (85 pages)

Section A: 1989 R/V Truck

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

Wiring diagrams for the 1989 R/V trucks: fuse block, power distribution for gasoline and diesel engines and the TP2 auxiliary battery, exterior lamps and horn, start and ignition circuits for the 6-cylinder L25 and 8-cylinder LE8, LT9, LO5 and L19 engines and the LL4 and LH5 diesels, throttle body injection, glow plugs and diesel engine controls, ECM inputs, outputs and charts, transmission converter clutch and kickdown, air conditioning and heaters, instruments, cruise control, radios, power windows and locks, wipers and camper and trailer wiring.

Read this section free, starting at page 9

What this section covers

  • Fuse block and power distribution
  • Start and ignition by engine
  • Throttle body injection and fuel control
  • Diesel glow plugs and engine controls
  • ECM inputs, outputs and charts
  • Air conditioning and heaters
  • Instruments and indicator lamps
  • Power accessories and camper and trailer wiring
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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