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Brake failure light always on

 
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Gary
Contributing Member


Joined: 10 Jun 2009
Posts: 65
Location: Atlanta, GA

PostPosted: Sat Mar 17, 2012 5:10 pm    Post subject: Brake failure light always on Reply with quote

Has anyone had an issue with the brake failure light? Mine is on constantly, but the fluid level switches and the brake pressure switch do not seem to be the reason and the brakes are working correctly.

Does anyone have a wiring diagram of this circuit?
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mellowcmb
Contributing Member


Joined: 10 Dec 2009
Posts: 123
Location: South Pasadena, Ca

PostPosted: Sat Mar 17, 2012 9:22 pm    Post subject: Reply with quote

I'm curious to know the answer as well. I'm having the same issue
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twn454
Killers Dad


Joined: 03 Jun 2009
Posts: 133
Location: Fort Washington, Md

PostPosted: Sun Mar 18, 2012 12:27 am    Post subject: Reply with quote

While parked, pump the brake pedal as HARD as you can a couple times! that should fix it
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Gary
Contributing Member


Joined: 10 Jun 2009
Posts: 65
Location: Atlanta, GA

PostPosted: Sun Mar 18, 2012 9:10 pm    Post subject: Reply with quote

Problem is solved.

Undid wiring harness and found the circuit also splits off and goes to one of the headlight relays. (Still not sure why)

Turns out, this is where the ground fault was. Apparently water had gotten into the relay on the left side (looking from the front with the nose removed) When I removed that relay the light went out. If you look at the pinout of each relay, they are wired differently. The problem pin is not used on the other relay, so I swapped the relays over and solved the problem.

mellowcmb. I would start by removing the relays. If that turns the light off, try swapping the relays. You should be able to try that without removing the nose. I hope this saves you undoing the wiring harness like I had to. That is a bear!

Gary
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