Brake lights

Tiny
MMAYER
  • MEMBER
  • 2002 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 118,000 MILES
Brake lights on 2002 Pontiac Grand Prix are still not working after replacing bulbs, checking all fuse boxes and switch (toggle) under brake. What else could it be that would still cause no brake lights. The brake light works in back window but not tail lights. Thanks.
Tuesday, April 26th, 2011 AT 5:19 PM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
You most likely have a bad combination switch in the steering column. The 2 lower lights have to pass through it so the turn signals can cancel the brake lights. They fail a lot.
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Tuesday, April 26th, 2011 AT 5:34 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The circuit passes through the multi-function turn signal lever.

With brake oedal deppressed, test the Dark Green and Yellow wire from multifunction turn signal lever for battery voltage. Ensure there is voltage going into switch of White wire.
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Tuesday, April 26th, 2011 AT 5:36 PM

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