1999 Grand Prix GT

1999 PONTIAC GRAND PRIX
176,000 MILES • 6 CYL • FWD • AUTOMATIC
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2BLAZE
  • MEMBER
  • 1 POST
Taillights and dashligts not working. All ready checked all fuses and headlight switch.
Feb 9, 2011 at 8:01 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Did you voltage at the applicable fuse and voltage at the headlamp circuits. Use voltage tester.
Feb 9, 2011 at 8:19 PM
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Also, in the diagram below, orange wire is hot all the time. When you turn on the headlamp switch, the brown wire goes hot/voltage and carries voltage to tail lamps.

Could be a problem with wiring circuit from switch to rear lites? You can check the brown wire at the rear for voltage?
Feb 9, 2011 at 8:27 PM