2024 Peterbilt 389 Fuse Panel Diagram Wiring Diagram. Easiest way is to rework your old harness, get a 2250 wiring diagram and label the wiring on the ecm end, you will also need to get a convertor to convert 1708 and switch inputs. Visit peterbilt atlantic anytime at:

Easiest way is to rework your old harness, get a 2250 wiring diagram and label the wiring on the ecm end, you will also need to get a convertor to convert 1708 and switch inputs. Inspect the wiring connected to the circuit and look for any signs of damage, such as frayed or.