Understanding the Wiring Schematic of a 2007 Peterbilt 379

View and Download Peterbilt 389, 379 instruction manual online.. Peterbilt 379 Complete Vehicle Electrical Wiring Diagrams: Includes following engines: CAT C11,C13,C15, Cummins ISC, ISM, ISL, ISX Complete fully detailed wiring diagrams showing all Peterbilt 379 systems over the entire vehicle Includes wire colors, connector locations, connector pin-outs (circuit positions) & connector illustrations.

This document provides a wiring schematic for the 379 Family. It shows the various electrical components in a vehicle and how they are connected through wiring circuits. Over 50 individual components are displayed and labeled, ranging from lights, switches, sensors to modules and accessories. A key is included at the bottom to identify the different wire colors and their associated functions.. Peterbilt Welcome to the Peterbilt Wiring Diagram section! Here you will find comprehensive diagrams and instructions for maintaining and repairing the electrical systems of your Peterbilt vehicle. Our team of experts is dedicated to providing you with top-quality materials and updates for your vehicle's electrical system.