2015 Peterbilt 389 Fuse Panel Diagram May 2026

Here’s a quick guide to understanding the 2015 Peterbilt 389 fuse panel diagram.

The 2015 model year uses blade-type fuses (mini and ATO). Always replace with the same amperage. 2015 Peterbilt 389 Fuse Panel Diagram

Save this post for roadside troubleshooting. 🚛 Here’s a quick guide to understanding the 2015

#Peterbilt389 #PeterbiltTrucking #TruckRepair #FusePanel #DieselLife Subject: 2015 Peterbilt 389 – Fuse Panel Identification 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.

Missing/faded fuse panel diagram.

| Fuse # | Amp | Circuit | |--------|-----|-----------------------------| | F12 | 10A | Turn Signals / Hazard | | F18 | 15A | Cigarette Lighter / Power Port | | F22 | 5A | Instrument Cluster | | F30 | 20A | Windshield Wipers | | F40 | 10A | HVAC Control Head |