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Re: TCS/ABS/Brake Fluid Lights on - drives fine-ideas? Posted by Ari [Email] ![]() ![]() In Reply to: TCS/ABS/Brake Fluid Lights on - drives fine-ideas?, ED, Mon, 13 May 2002 09:13:47 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Two out of three-
A bad wheel sensor or other ABS sensor issue would cause TCS and ABS lights to come on. The TCS uses the ABS wheel sensors to detect wheel spin. The ABS continually does self-tests, and if it detects a sensor out of range, it lights the ABS light and disables the ABS.
The Brake Fluid light is worrysome. IF you have low ABS pressure, you'll get both the ABS AND Brake Fluid lights. This is quite serious, as the ABS pressure is used both for ABS AND Brake boost. Lose brake boost, and stopping distances will greatly increase. I would never drive a car without boost.
So there's a few possiblities. You might have an ABS sensor that's on the hairy edge, sometimes it's out of range, sometimes it isn't. You might have a problem with low ABS pressure - that's very worrysome. There is usually enough pressure in the system for a few stops, but if you did ten or more with the ABS and Brake Fluid lights on, then chances are your pressure is OK, and the problem is with the low pressure switch that lights up the ABS and Brake Fluid lights.
If it comes back, and you have brake boost and the ABS pump runs, then chances are it's a bad low pressure switch or relay.
Good luck!
posted by 140.157.4...
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