Question about 2000 Oldsmobile Silhouette
Disconnect traction control and abs system. Asr light comes on when it's cold and when wet. Goes into limp home mode. Rear brake calipers locked up and won't release. How to disable abs, tcs, asr,
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Posted on Jan 02, 2017
Anti-Lock and Trac Off lights are lit on my 1999 Alero, as well. They usually come on after about 5 minutes of driving, but are not always on when I start the car.
Posted on Jan 16, 2009
I agree with the post about the tail lights. And the symptom about the brakes on when starting was also helpful. When I took off my rear tail lights and removed the top light bulb (top of the 4 is closest to connector) then repeat starting the car the problem is gone. I have a whole drawer of these bulbs that I removed, not because the filament was burned out, but because the base (similar to circuit card edge connector) had heat damage and melted. I am not sure exactly what the problem is but I think there are multiple conductors in the fixture which are too close or get moisture shorts. Anyway I hypothesize the circuit for daytime running lights is leaking current into the brake light circuit, and it causes that module that controls traction control and ABS to declare a fault. When you start with foot on the brakes the brake lamp is pulled on (I don't know if switches hi or lo) so that module doesn't declare the fault until you release the brakes.
I put in new bulbs and it works fine for now, but I know it may reappear some day then I will repeat, disassembly of the fixtures and inspect bulb bases for heat damage and clean out and replace. That is what did the trick for me.
Thanks Fixya and all contributors
Posted on Feb 07, 2009
Sounds like you have a problem in the front brakes or a front wheel speed sensor. A common cause for a Traction light is a faulty front ABS wheel speed sensor or harness. When the Anti lock brake computer sees a problem in the ABS syetm, it disables traction control as well.
Posted on Mar 19, 2009
most lickly one of the frt wheel bearing assy. sensors is bad. unless the light stays on all the time it is hard to figure out which one is bad without a scanner to monitor the system while you drive.
Posted on Apr 20, 2009
You need to have the abs system scanned for codes. You likely have a bad wheel speed sensor on one of wheels.
Posted on Apr 21, 2010
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