2024 Peterbilt 389 Fuse Panel Diagram 2. View and download peterbilt 389 2017 manual online. I have a 2023 peterbilt 389 and i’m trying to wire my back work lights to a auxiliary switch or a spare switch but i don’t know how to wire that to my aux or spare switch.
It being paccar, try disconnect all batteries for 30 min and let the cab controller reset. Each block has 4 locking tabs that must be pushed towards the block, once all the.