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2005 Pontiac Grand Prix Rear brake Light

Tiny
MONIQUEXMAS1
  • MEMBER
  • 2005 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 67,892 MILES
One of my rear brakes lights has went out. I replaced the bulb and the light still won't work. What should I do now?
Friday, June 26th, 2009 AT 2:10 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I believe the turn and lower brake use the same bulb filament, just not at the same time. The bulb in question, does the turn signal work?
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Friday, June 26th, 2009 AT 2:45 PM
Tiny
MONIQUEXMAS1
  • MEMBER
  • 2 POSTS
No the trun signal doesn't work either!
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Friday, June 26th, 2009 AT 3:00 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Just to double-check, I'd use a testlite on the circuit in question, check for voltage and ground with either the brake or turn activated. If there is no voltage, that circuit comes from the bcm. I'm not saying the bcm is faulty, maybe something wrong with the wiring circuit. Check for trouble codes. Just to add, I'd probably check the bulbs front and back, turn.
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Friday, June 26th, 2009 AT 3:31 PM

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