benjaminmayer1
Trailblazer brake light failure
Summary of the thread
A 2002 Chevrolet Trailblazer is experiencing a brake light failure, with an error message indicating a faulty brake light switch. The issue was suspected to be user error. A similar problem in another vehicle was resolved by checking the brake light switch's wiring and connector for corrosion or loose pins. Upon inspection, the connector was found to be loose and corroded, and cleaning it resolved the issue without any repair costs.
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4 comment(s)
benjaminmayer1 (community.author)
I did a visual inspection, but didn't check pin by pin. Where was the connector located in the Saab? Was it easy to access?
maximiliankoenig10
Yep, it was a pain, but doable. I think it was under the dash, above the brake pedal. Honestly, though, if you aren't super confident, I'd take it to a workshop. Brake issues are not worth risking!
benjaminmayer1 (community.author)
Thanks for the advice! Turns out you were right. The connector was loose and corroded. Cleaned it up, and the problem is gone. Repair cost: 0€.
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CHEVROLET
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TRAILBLAZER
maximiliankoenig10
Hey, I had a similar issue with my old Saab 9-3. Brake lights were acting up, throwing codes, the whole shebang. It turned out to be a dodgy connection at the brake light switch. Have you checked the wiring and connector for corrosion or loose pins?