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đź“Ť Driver side, under dash panel (left of steering column). 2015 Peterbilt 389 Fuse Panel Diagram
Here’s a quick guide to understanding the 2015 Peterbilt 389 fuse panel diagram. Save this post for roadside troubleshooting
On the 2015 Peterbilt 389, the main fuse panel is located inside the cab, behind the lower dash panel on the driver’s side (left side of the steering column). A secondary power distribution module is often found in the battery box for high-current circuits. 2015 Peterbilt 389 Fuse Panel Diagram
Note: Always verify with your specific VIN and chassis configuration—Peterbilt used slightly different layouts depending on options.
The 2015 model year uses blade-type fuses (mini and ATO). Always replace with the same amperage.