Easy-to-Follow Wiring Diagrams

Wiring diagrams for commercial trucks can be challenging to find. The original equipment manufacturers (OEMs) don’t make them easy to obtain, often hidden behind paywalls or expensive software packages. Adding to the complexity is that each manufacturer has a different standard for wiring diagrams, which means they use different colors, icons, and symbols in their diagrams.


Easy-to-Understand Wiring Diagrams

In Diesel Repair’s Wiring Diagram module, our in-house experts have created a universal standard that applies to all manufacturers. We then created brand-new diagrams that are easy to find, read, and use.


Everything You Need for Easy Repair

Wiring diagrams cover all aspects of the commercial truck, including the engine, cab, chassis, ABS, transmission, and other related components.


Makes Covered

  • Allison
  • Bendix
  • Blue Bird Bus
  • Caterpillar
  • Cummins
  • Detroit Diesel
  • Dodge, Eaton
  • Ford, Freightliner
  • General Motors
  • GMC
  • Hino International
  • Isuzu, Kenworth
  • Mack, Mitsubishi
  • Paccar, Peterbilt
  • Sprinter
  • Volvo
  • Wabco,
  • Western Star


Diagrams For

  • Air Conditioning
  • Anti-Lock Brake System (ABS)
  • Cooling Fan
  • Cruise Control
  • Electronic Suspension
  • Engine Accessories
  • Engine Performance
  • Exterior Lights
  • Headlights
  • Horn
  • Instrument Cluster
  • Interior Lights
  • Pneumatic System
  • Power Distribution
  • Power Door Locks
  • Power Mirrors
  • Power Windows
  • Radio
  • Starting & Charging System
  • Supplemental Restraints
  • Trailer Harness
  • Washer & Wiper System


Easy to Read

Our wiring diagrams have been made easy to read and follow with unique color coding and symbols designed to make every repair more effortless than ever.

Repairs Made Easy

Gain access to easy-to-read wiring diagrams and detailed component locators to ensure repairs are done more efficiently than ever. Print and save any diagram or repair information for future retrieval.

Find any wiring diagram or component locator you need in seconds on Diesel Repair

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Diesel Laptops is a leading innovator in the diesel diagnostics and repair industry. We provide hardware and software tools empowering users to diagnose and repair their equipment any way they choose.


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