I have a 1994 chevy suburban with absolutely no working signal lights- front,sides,rear or inside. There are also no side brake lights. The back brake lights work, but not the ones on the side. All fuses are good except there's no power to the 'pnl' fuse (5amp). All bulbs are good.
Or it could be the body control module is bad it is commonly known to go bad and all of the vehicles lighting is run through the body control module
The problen is probably the turn signal switch with a test light check for power at brake switch if no power check for power at turn signal switch the brake lights are incorperated through the turn signal switch
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