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1988 - 1998 (GMT400) Section for all discussion related to the 1987-1998 Chevrolet and GMC trucks.

97 C2500 - Strange Lighting Issue

Old July 30th, 2016, 10:58 AM
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Default 97 C2500 - Strange Lighting Issue

Hi guys! Went to drive to my local Wally World last night and noticed I had no rear parking/running lights. Including the license plate lamps were out. Turn signals and brakes work fine, 3rd brake light comes on as well.

Dash illuminates but the interior dome light won't function now either, weird right?

Headlamps work, 4 ways work except the driver front light, but it will work with the turn signal, another thing I found odd.

I've looked at the fuses , none seemed to be broken in the middle or burnt. Anyone know what the problem most likely is?

Appreciate the help!
Old July 30th, 2016, 11:32 AM
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You can't always tell if a fuse is good or not by looking. You have to test them. I have seen on many occasion where they look good but are not. Never overlook the obvious.
Old July 30th, 2016, 11:59 AM
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Replaced fuses 9 and 15 just to be sure, since fuses are cheap no loss right? Still no interior dome light or any rear "parking" lights.
Old August 7th, 2016, 1:57 PM
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Replaced tail light circuit boards and all new bulbs. Any other ideas for me to check before taking it to the dealership and paying an arm and both my legs?
Old August 16th, 2016, 6:27 PM
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There are 3 bulbs on taillight what is top bulb for? Mine won't come on. Middle is break and bottom reverse.


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