1997 Chevy Suburban Break lights dont work, fuse keeps blow

Tiny
PCRANE
  • MEMBER
  • 1997 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
The break lights and the hazzard lights are on the same fuse, I turn the hazzards they work fine, I press the break pedal and the fuse blows. With the fuse blown I set the alarm and the break lights flash. I replace the fuse again, the hazzards work just fine fuse perfect condition, I press on the breaks and the fuse blows everytime. Some one told me that there is a relay that the breaks and hazzards share? When I noticed the lights stopped working I was stopping quickly at a light pressing the pedal quickly and I heard a noise like a relay, click click click click click click click, and then I noticed when I got to work NO BREAK LIGHTS. Whats the problem. Is there a relay, this is driving me crazy.
Monday, April 13th, 2009 AT 10:19 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS


https://www.2carpros.com/forum/automotive_pictures/170934_checy_sub_1_1.jpg



Hello, I don't know if the image is readable? You might be able to hit ctrl/+ and make larger.

The switch side of relay gets voltage from a different fuse, maxi fuse.

The control voltage for the relay does come from the stop/haz fuse. I just wanted to add, if a circuit has a short to ground, replacing the relay won't help.
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Monday, April 13th, 2009 AT 11:15 AM

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