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2001 Volvo S80 Repair Question


Topics covered: Defroster, Fuse, Brake light switch.
Mileage: 164,000 miles.

Asked on January 13, 2012

Brake lights

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
Avatar Asked by roryconor

Answer

Replied on January 14, 2012

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.

Tiny Answered by ProAutoTech (expert)
307 answers provided
Replied on January 14, 2012

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.

Tiny Answered by JIS001 (expert)
1,861 answers provided