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2015 Peterbilt 389 Fuse Panel Diagram (2024-2026)

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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

Here’s a quick guide to understanding the 2015 Peterbilt 389 fuse panel diagram. Save this post for roadside troubleshooting

If you own or drive a 2015 Peterbilt 389, you already know that electrical issues can bring a haul to a halt fast. Whether it’s your headlights, turn signals, HVAC blower, or power ports—knowing exactly which fuse to check is critical. 2015 Peterbilt 389 Fuse Panel Diagram

2015 Peterbilt 389 (all trims)