Caterpillar C15 On-Highway Truck Engine Electrical System Wiring Diagram (2006 Edition)

This wiring reference for the Caterpillar C15 On-Highway Truck Engine Electrical System (2006) helps you follow circuits, connectors and harnesses when you are diagnosing an electrical problem or checking a repair.

The document is 2 pages long and is referenced as RENR9523-01.

What the diagrams cover

• Connector tables (A-C1 through A-C12) with wire name, position, and terminal/plug part numbers
• Accessory tables with plug, paint/pro, and wedge part numbers
• Front and rear valve cover connector locations, intake valve actuation pressure solenoid valve
• Complete data code / PID-FMI diagnostic code listing (injector faults, coolant level, ambient air temperature, retarder, fuel temperature, engine speed, transmission communication, theft deterrent, and more)

Coverage

C15 On-Highway Truck Engine — 2006.

User help

1. Make sure it matches your machine. Look up your model and serial number and year and compare them with the coverage above. Not sure? Send us those details and we will help you check before you buy.
2. Get the file. This is a digital PDF download. Nothing is shipped, so you can start using it as soon as you have the file.
3. Open it anywhere. Use any current PDF reader (Adobe Acrobat Reader, your browser, or a phone or tablet app). Save a copy to your computer and to a backup drive.
4. Find things quickly. Use the contents pages and your reader's search (Ctrl+F or Cmd+F) to jump to a component, fault code or specification. Print only the pages you need for the workshop.
5. Trace circuits methodically. Identify the circuit, connector or harness in the diagram, then check voltage, continuity and grounds at the points shown before replacing components.
6. Stay safe. Repairs on engines, hydraulics, fuel and electrical systems can be dangerous. Follow the safety instructions in the document, use proper tools and support equipment, and follow local regulations.

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