Pontiac Grand Prix 2000 Tail lights

Asked by Aug 12, 2016 at 10:14 PM about the 2000 Pontiac Grand Prix GT Coupe

Question type: Shopping & Pricing

Tail lights work, turn signals work, no brake lights... 3rd brake light in the
window is fine, fuses are good, brake switch is good....ran wire from 3rd brake
light to tail brakes lights and now have a weak signal...know its in the wiring
harness but cant find anywhere to buy the harness

3 Answers


Sounds like a bad turn signal switch. The turn signal switch also handles the brake lights, it cuts off the brake light on the side the switch is turned to, so when the turn signal switch is in the center position it allows the power from the brake switch through the it and to the rear brake lights. The third eye light is directly wired to the brake light switch so it is not handled by the turn signal switch.

2 of 2 people found this helpful.

Sounds about right. I feel you still need a harness try partsgeek.com


Sorry my computer is messing up I don't feel you still need a harness what I'm trying to say is if you need a harness try parts geek

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