Replace ignition, had that same problem on 91 379 no power to dash, gauges, AC, jacks etc. 136$ delivered from rush ignition with new keys and push start fixed it. Also keep an eye on acc nwts or something like that fuse on left side bank it's a 20a, that will create similar problems..
Help : Gauge Lights Not Working
Discussion in 'Peterbilt Forum' started by Trygg, May 23, 2014.
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379 is all wires 'n circuits.... 389 is multiplexed gauges 'n cecu control.
I'm sure he missed the op -
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Mine will do this if you don't let it cycle all way through it clicking and checking all the gauges. If you start during this time with lights on you will have no dash lights. Don't rush the start up
Frachand Thanks this. -
Cottonmouth85 Thanks this.
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Apply brakes, Cut truck off, get out of seat for about 5 secs, get back in, start truck. I think there is a safety linked in with the seat (while your seated) for extended idle....
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I'm having a similar issue, but not the same. My company just purchased a used 2012 382 day cab and after about a week of owning it, the batteries were dead. Looked into the cab and saw that the buttons were all lit up, but the ignition was off, the headlights were turned off as well. Looked to see if the dimmer switch had a cab light feature, which it doesn't, but it was dimmed all the way down. Still having problems with it, didn't know if someone has ran into this issue before or not?
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