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Brake wear light diagram

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My light is on, but I've had the sensors tied up for years. I'll check resistance across them tonight.

However, on other cars there was also a brake fluid level sensor in the same circuit. Are the wear sensors the only thing on this circuit, or is it possible something else may have caused the light to come on (fluid level is currently topped off)?

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I had a problem with the brake pad sensor light being on for several years. Checked and replace the sensors but could not get the light off and just got used to it. Then on day I took the liner out from the top storage area to adjust the rears on my PSS9's and saw what appeared to be charring on a label on one of the main wiring harness runs. Started separating the harness at that point and found a melted brown ground wire. Over a period of three days out came the rear seat, carpet, etc. etc. soon I had the harness split all apart, probably 100 wires at some points, and continued to trace out the wire with melted insulation. It had partially melted the insulation on surrounding wire, some of which I repaired with liquid electrical tape.

I finally determined that is was the ground wire for the brake pad sensors. And there were several larger gauge ground wires that fed back to this smaller one. I ended up cutting out the bad wire and running a new ground wire. The problem was fixed and has never returned. I never have figured what caused the short that melted the wire, but if this had been a dealer repair it would have been thousands of dollars and I am guessing tha the would have ordered a new wiring harness.

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