1988 GMC S/T Truck Electrical Troubleshooting Manual

Providing Step by Step Electrical Troubleshooting and Wiring Schematics for the following:

• 1988 GMC S15 Pickup Base, Sierra Classic, Gypsy & High Sierra Standard and Extended Cabs
• 1988 GMC S15 Jimmy Base, Sierra Classic, Gypsy & Timberline
• Including 2.5L I4, 2.8L V6 & 4.3L V6 Engines

Original Publication | 11" x 8.5" x .65" | Approximately 350 pages | Published by the General Motors Corporation

Connector Configurations * Harness Locations * Circuits * Relays * Grounds * Vacuum Diagrams * Valve & Sensor Locations * Hose Colors * Vacuum Distribution * Wiring Diagrams

This book is written by GM specifically for the vehicle(s) listed, ensuring that you get the job done right the first time. It is a must for anyone who insists on Genuine OEM quality parts.

Condition

Good condition. Covers show light wear. All pages are in place and straight. Page surfaces are mostly clean.

Table of Contents

• Introduction
• Symbols
• Power Distribution
• Fuse Block Distribution
• Throttle Body Injection
• Starter and Charger System
• Wiring Diagrams
• Component Location Views
• Harness Connector Faces
• Harness Routing Views