Traction Control and ABS - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-16-2003, 11:20 PM   #1
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Default Traction Control and ABS

Hi Guys, My traction Control light and ABS light are both on. Needless to say my traction control doesn't work. Can anyone give me a heads up on where to start looking for the cause of this problem, or has anyone had this problem before. Thanks, Chris

1993 SSEI
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Old 12-16-2003, 11:32 PM   #2
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Expensive system to repair. The major components are:

EBCM (the computer, rarely fails, but costs ALOT)
PMV (common culprit, this is the big valve/pump assembly under your airbox) $1000 installed
Wheel speed sensors


Start by checking the 4 wheel speed sensors. Plugs and harnesses. If they all look good, you're going to have to go to the dealer for a scan of the system. No other way to do it.
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Old 12-17-2003, 02:09 AM   #3
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i had the exact same problem yesterday. there was a lot of snow and it came on.

could snow mess up the sensors???

i'm gonna take it in soon so i'll keep you posted.
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Old 12-17-2003, 02:18 AM   #4
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Snow can mess up the sensors. Snow will also mess with your ELC sensor as well. Snow, ice, salt, and gravel/sand buildup this time of year is yucky.

Be warned, the Dealer will probably charge you $80 in shop time just to diagnose. Take the car to the carwash and try to douse the backside of the hubs with the pressure wand.
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Old 12-17-2003, 09:45 PM   #5
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Thanks for the input, my Mac man is going to hook up a scan tool from his truck to help me pinpoint the problem. Its amazing what these guys will help you with when you owe them money . He'* pretty cool and besides I buys a ton of tools from him.

I tried to clean the areas you mentioned with no luck but it was a good idea. Thanks again I'll keep you posted. Chris
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Old 12-17-2003, 10:03 PM   #6
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Your trac. cont. stops working when you have a abs prob. fix your abs prob. and trac. will start working again.
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Old 12-18-2003, 12:00 AM   #7
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Sorry, you need the serial reader for the EBCM at the dealer. Your mac guy ain't gonna help.

This doesn't read through the standard ALDL connector. It reads through the EBCM connector mounted on the firewall between you and your passenger (to the right of the loud pedal).
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