why do my tail and break lights go out when i turn my headlights on ?
1990 GMC SUBURBAN
150,000 MILES
JOE MARTYNSKI
MEMBER
1 POST
FOLLOW
my breaklights work only when my headlights are not on.
Sep 25, 2012 at 11:49 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
HMAC300
CAR REPAIR CONTRIBUTOR
48,601 POSTS
check the ground and circuit board in rear. the ground is left hand rear of frame