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abs inop/tcs off lights on.

This is a discussion on abs inop/tcs off lights on. within the Drivetrain forums, part of the LSx Technical Help Section category; Was driving home this evening and all of a sudden the tcs off light and abs inop light came on. ...

  1. #1
    autoconnectionllc.com 02transamce's Avatar
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    abs inop/tcs off lights on.

    Was driving home this evening and all of a sudden the tcs off light and abs inop light came on. WTF?? Anyone have this happen to them? I do not have a scanner so I don't know any codes. Car is 02 ws6 t/a automatic,202k miles. Thanks
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    Member c5z28's Avatar
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    On your ass flashing
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    mine does it on the track sometimes or when I put the rear on stands and put it in drive to listen to noises in the rear.
    abs is a separate computer system I think. Is it still on?

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    autoconnectionllc.com 02transamce's Avatar
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    When I got home I turned the car off and then back on and the lights stayed on,dammit
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    Moderator Cutlass's Avatar
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    ABS and TCS both use the same computer. You'll have to get the computer scanned for trouble codes in order to know what wrong with the system. Its usually a wheel speed sensor, but it can be numberous other things.

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    autoconnectionllc.com 02transamce's Avatar
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    I have noticed recently a noise coming from the left rear wheel area at highway speeds,kinda like a"ting,ting,ting" like it is a light thin metal,and the noise will stop as soon as I touch the brakes.
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    Moderator Cutlass's Avatar
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    That sounds like it could be the brake backing plate rubbing on the rotor. If so then just bend it back away from the rotor. Most likely unrelated to the ABS/TCS lights.

  7. #7
    autoconnectionllc.com 02transamce's Avatar
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    Thanks for your help,I'll get it scanned and go from there.
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    Moderator 35th-ANV-SS's Avatar
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    First thing I would check is that all of your wheel speed sensors are secure. Also, sometimes they can get gunked up with dirt/grime, which cause them to not work properly.

    My guess is that your TCS is only on because your ABS light is on. TCS will not operate without the ABS module functioning. If you cure your ABS problem, your TCS light will also go away most likely.

    Have you recently put different tires on the car? Different size tires from front to back can also through a wheel speed sensor off.

    I had this happen on mine after a rear-end install and it ended up being one of the wires got pinched.

    Lastly, in order to scan the ABS, you'll need a high-end scanner like a Snap-on or similar such as the ones mechanics use or a dealership. The one's at Pepboys and Autozone do not scan ABS, only OBDII. Keep us updated.

  9. #9
    autoconnectionllc.com 02transamce's Avatar
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    got in the car this morning backed out of the driveway, lights were on,pulled onto the highway and the lights went off,have not come back on! driveline and wheels are all stock for now.

  10. #10
    Moderator Cutlass's Avatar
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    yah, these problems can come and go. One thing is almost guaranteed, its only gonna get worse not better

  11. #11
    autoconnectionllc.com 02transamce's Avatar
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    yeah i know,it's been a new problem everyday this week,today i found the left rear wheel is bent!! damnit!! yesterday it was the abs light,monday was well monday.not sure if i want to get out of bed tommorrow.and they are saying anywhere from 1-4 inches of snow friday...in central ALABAMA. these fools down here can bearly drive in the damn rain. well maybe this saturday i will not have to work since i have the last 4.

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