Question about Cars & Trucks
Lights on my plow won't turn on
Posted by Anonymous on
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Posted on Jan 02, 2017
my friend had simular prblem on a05 chevy and it was a problem with the truk . only happened when the plow was on. the dealer fixed something in the fan assembly and no more problems 4 the last 2 seasons goodluck
Posted on Feb 09, 2010
This is just an idea, I may be wrong but any input is helpful, right? I would think that the switch that controls the plow lights is designed to alternate between the circuits for the truck light and the plow light. If the trucks headlight switch is turned on then the circuit is closed and turnes on the light. When the plow light switch is turned on it may cut the hot side of the circuit going to the headlight and engage the hot wire to the plow light. The headlight and plow light may share a common ground. If they don't share a common ground then the plow switch may cut the ground wire opening the circuit. If you can't find a solution you can always wire the plow lights directly to the battery with the same switch or a new toggle switch and then turn on the parking lights only on the truck. On most GM cars and trucks there is a space in the fuse pannel that is for a power accesory. It is basically a fuse slot that is empty labeled ACC. This is a 12V hot power source and you would run the positive wire here then ground the neg to the chassis. This way if you forget to shut off the toggle it will cut the hot when the key is shut off. When running the wire it is near the hood release able and you may be able to run the wire thru there and not drill a new hole. I've done this for neon lights under cars as well as stereo systems requiring an amplifier. If you drill a new hole even though its under the hood I would put a little blue RTV silicone over the new hole to prevent moisture from getting past the fire wall or road salt.
Posted on Oct 16, 2010
First check the headlight relay by changing it with one of the same number in the fuse panel.If it checks out ok then you have a faulty headlight switch.
Posted on Nov 03, 2011
have you checked fuses and relays as they all seam to be from the same fuse as 1 fuse or relay runns numerus things not sure on model but thats where i would start hope this helps ivan
Posted on Oct 01, 2012
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