BRAKE LIGHTS

2001 GMC SAFARI
187,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
DHYATT
  • MEMBER
  • 1 POST
REPLACED BRAKE LIGHT SWITCH AND STILL NO POWER TO REAR LIGHTS BRK
Jan 31, 2011 at 8:29 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.
Advertisement
Avatar
JDL
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 16,098 POSTS
Did you check for voltage to and from the brake switch, use voltage tester. Orange wire is hot all the time, white goes hot when brake switch is activated. Your lower brake lites are wired through the turn switch, the highmount, isn't. Does the high-mount brake lite work?
Image (Click to enlarge)
Attached Media
Jan 31, 2011 at 9:03 PM
Advertisement
Avatar
RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Do you have power going in and out of the brake switch? if so test the turn and hazard switch
Jan 31, 2011 at 9:05 PM