brake lights

2001 VOLVO S80
164,000 MILES
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RORYCONOR
  • MEMBER
  • 3 POSTS
lower brakes lights work some times third brake light is fine not bulbs or fuses back window defroster not working either are these 2 things related
Jan 13, 2012 at 10:29 PM
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PROAUTOTECH
  • ✓ASE Certified Mechanic
  • 288 POSTS
  • ASE Certified Mechanic
gremlins. Anyone pull the dash off? Maybe to put in a stereo? It's going to be tough to diagnose without getting my hands on it. If the third brake light always works, then it's not the brake light switch. And the only thing that I can think of that would interfere with the defroster is a lose wire right behind the switch, the switch itself, or a fuse which you say is fine. Pull the fron panel of the dash and see whats going on there. Let me know.
Jan 14, 2012 at 2:03 AM
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JIS001
  • ✓ASE Certified Mechanic
  • 3,412 POSTS
  • ASE Certified Mechanic
Brake light relay at rear electronic module behinde the left side trunk cover is usually what fails. The relay is what controls the lower brake lights.
Jan 14, 2012 at 11:08 PM
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