So earlier I stepped out of my truck for about 30 minutes to get something to eat. I open my truck door and close it as usual, and then suddenly notice my dome light kicking on and off slowly. Also at the front of the cab there are some lights above the dash that kicked on and wouldn't go off. I killed the main switch and then my door light kicked on and wouldn't go off. Never seen anything like it in my life....its a brand new 2021 freightliner cascadia. Something to think about is the other day while in Utah I woke up to a dead truck. I kicked on the apu and it almost immediately started which is weird because if they were dead it would have taken a while to charge them I would imagine. Has anyone ever seen anything like this? Thanks in advance for the help.
Ghost dome light?
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Irishblood_83, Jan 11, 2021.
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Welcome cus. Sounds like a problem for the dealer.
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If your truck was completely dead why did you apu start? Obviously the apu takes a lot less power to turn over but... I'd check your battery cables, make sure everything is good and tight
BoxCarKidd and BUMBACLADWAR Thank this. -
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I always figured the apu was tied in with the truck batteries..I'd probably take it to the dealer for some warranty work to sort your light issues.
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On older models that happened often . The cause was almost always a windshield leaking water into the fuse panels and computers under the dash . On my 09 the horn and wipers got stuck on as well as the lights.
Crude Truckin' Thanks this. -
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Just an update. The keypad that my company uses for security stopped working, which honestly is perfectly okay with me, and in return the lights stopped doing all the wonky on and off crap. Maybe there was some crossed wires and a fuse popped? Gonna see what happens over the course of the next few days.
magoo68 Thanks this.
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