Changed out the brake pedal switch. Not it. Cab brake light working. Bed lights not working
SOURCE: rear brake lights don't work
you prob got a trailer plug prob bad wires if not tail lights run through turn signal switch tell fix ya bout me ok
SOURCE: brake cab light works , no bed brake lights ,
Had the sam thing happen on my 95 GMC.There was a part under the dash to the reear of the parking brake were all the relays were pluged in that looked like the old buzzer box.Not sure the name of it or if yours will have the same retanguler box.Has something to do with the brake lights.The guys at my local napa new what part it was but never caught the name of it,was just happy to have brake lights again.
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