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Automotive/2002 GMC Safari brake lights don't work

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Expert: Sean Halliday - 4/14/2007


Question
The top center brake light comes on but the lower ones don't. I checked the bulbs and they are not blown. I checked the fuse and it is fine. Turn signals and normal lights work.

Answer
Sounds like wiring so you will need the diagram to trace the wires to the light units.No easy fix because if the bulbs are ok then theres a break somewhere along the circuit.Look inside the rear and see if anything is visible with the wires.Check also the relay for the brake lights.Is the switch ok at the foot pedal?.

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Sean Halliday

Expertise

general auto repair,japanese,bmw,mercedes,mini cooper 1960/2009,general british cars,ford.I DO NOT work on automatic transmissions.Manual transissions i install clutches only.Many people ask me to diagnose noises from their cars,unfortunately i cannot do this unless i hear it.As you appreciate,vehicles can and will make a variety of noises.I DONT UPGRADE or fit aftermarket performace kits,parts,chips,only replacement parts.

Experience

40 years experience on all general auto repair.

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