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Re: ABS light
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Posted by sam96CS [Email] (#852) [Profile/Gallery] (more from sam96CS) on Fri, 11 Mar 2011 13:16:45 Share Post by Email
In Reply to: ABS light, derf, Fri, 11 Mar 2011 09:15:11
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I don't recommend spending without knowing. Resistance should be 1100 ohms give or take 100, so any reading below 1000 or above 1200 could point to a problem. Or not. Your ABS computer believes all four are within range when you start the car.

Mr. Bubble is right that the ABS computer is the key to pinpointing the problem. If your 9K is a 94 or later model it has the newer generation ABS that requires a Tech II or ISAT to read the code. There's a way to pull the code on '93 and earlier models documented somewhere at Townsend.

When the light comes on, you can do a warm reboot of the ABS system by turning the key to the start position for a second and let it return to run. The starter won't try to engage. Maybe that "test" would tell you just how transient the problem is.

The sweeper corner symptom points to the front sensors. You've checked the connections at both ends and I assume the shutter wheel. The cables inside the front wheelwells are exposed to road hazards. That's where I would inspect next by pulling off the wheels, disconnecting the cable from the ABS cable bracket on the strut, and cleaning the cable from end to end (wet paper towel will do). If a cable has been slightly damaged you will either see it or feel the bad spot.

Or you can just live with it until the problem gets bigger. If you ever start the engine and the light stay on, then immediately turn it off and check the resistance of all four sensors. Then you'll catch the culprit in the act.

The more the ABS light annoys you, the longer the little bulb will last. :)
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