2015 Peterbilt 389 Fuse Panel Diagram !!top!! Today

This is the heavy-duty electrical center. It is located under the hood, usually on the driver’s side, mounted near the firewall or on the frame rail just behind the cab.

A primary Power Distribution Center is mounted on the driver's side bulkhead/firewall. This panel typically contains larger relays and fuses for heavy-duty systems like headlights and the ECM. 2015 Peterbilt 389 Fuse Panel Diagram

On the 2015 Peterbilt 389, there are typically three primary locations where fuses and relays are housed. To use a diagram effectively, you must know which box contains the fuse you are looking for. This is the heavy-duty electrical center