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'97 900 SE Turbo - Brake light problem

I'm hoping someone here may know how to troubleshoot this.

When I started the car the other morning, the "Brake Light Failure" message came up. I immediately drove to Kragen's and bought new bulbs. Replacing the bulbs didn't fix the problem. So I replaced the fuse. Didn't fix it. So I backed up to the store's glass windows and stepped on the brakes. In the reflection, I could clearly see that the driver's side brake light was on all the time, the passenger's side only when I stepped on the brake.

Has anyone else encountered this problem? How did you fix it?

Many thanks!

- Chris (who doesn't have time to take it to a shop)

Reply to
chris
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Sounds like it might be an earthing problem. Check the rear loom around the boot to check that the points at which it is earthed by connection to the body/chassis are good and not corroded.

Peter.

Reply to
Peter Bennett

Will do - Thanks Peter!

Reply to
chris

No problem, good luck!

Reply to
Peter Bennett

Worth looking at the wiring diagrams in Haynes to see how logically a brake lights can be on all the time. Maybe a relay or something.

Reply to
johannes

I don't have a diagram handy, but on this year I think anything that requires a "relay" is shuttled through the ICE unit (and you won't find a relay). Brake lights might be an exception.

For the OP - see Amazon.com if you are in the USA, look for a Haynes manual. You won't find them many places as they have to be imported from Europe.

Reply to
still me

Reply to
Richard Sutherland-Smith

Brake switch - purple - to 43 on TWICE

1 on TWICE - yellow/white - to R brake light 24 on TWICE - to high level brake light 25 on TWICE - blue/orange and orange/blue? - to L brake light Blacks to earth E8, below left hand A-post.
Reply to
Richard Sutherland-Smith

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