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ABS Brakes - warning light keeps coming on V70-XC70 2001

posted by  fjgordon on  Mon Aug 3 04:26 CST 2009
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last visit: Wed Jan 20 05:44 CST 2010
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My ABS brake warning light keeps coming on - by the time I get it to the mechanic, it has gone off and they can't diagnose the problem. Yesterday, it came on again shortly after I heard a "thunk" from the front of the car - then the error message board read out that there was also a traction control problem AND the check engine light came on. I am not touching the car until I get it to the mechanic - has anyone had a similar problem? The mechanic has gone over the brake system and can't find anything but, until now, I'd never heard the "thunk" - I'm assuming that there is something going on.








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    ABS Brakes - warning light keeps coming on V70-XC70 2001

    posted by  Tapsa on  Tue Aug 4 20:14 CST 2009
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    last visit: Sun Oct 19 13:29 CST 2014
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    Hi,
    have you read your codes? The failure of ABS unit is fairly common but the reason can also be one of the sensors identified by codes. This was the case in my 850-94 some years ago, was replaced with low cost reuse-sensor.
    br Tapsa








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      ABS Brakes - warning light keeps coming on V70-XC70 2001

      posted by  fjgordon on  Wed Aug 5 03:04 CST 2009
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      last visit: Wed Jan 20 05:44 CST 2010
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      The mechanic couldn't read the codes as every time I took it in, the light would go off. This happened three times until the check engine light came on and remained that way for him to read. Very frustrating as they could tell the ABS light had gone on but there was nothing to indicate what the problem was.








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    ABS Brakes - warning light keeps coming on V70-XC70 2001

    posted by  someone claiming to be The Iron Chef on  Mon Aug 3 05:04 CST 2009 [RELATED]

    What Klaus said ^^^. This is a fairly common problem. Search ABS in this forum. THe car is certainly drivable, just no ABS or traction control. Klaus mentioned Vic Rocha as a repair contact for the ABS module. I can offer a different source on the east coast, in Massachusetts. BBA-Reman.
    http://www.bba-reman.com/uk/index.aspx. I used them when the ABS module went bad in my 2001 V70. THey offer 3 levels of service for the unit. rebuild yours, exchange yours, or ah, I forget. But, They have very fair pricing and great service. I delt with them over the phone and was very pleased.

    hth
    -Keith








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      ABS Brakes - warning light keeps coming on V70-XC70 2001

      posted by  fjgordon on  Tue Aug 4 12:41 CST 2009
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      last visit: Wed Jan 20 05:44 CST 2010
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      Car in today - yes, it was the ABS sensor module at 93,000 miles. Didn't go with the Canadian Volvo dealer for parts as they wanted $1087 Cdn for the unit alone. Thank god I had taken the car to an independent mechanic who is waiting for me to get the part on my own and then give it to him for installation - no charge for the diagnostics, either. $300 to install, though - what goes next on these cars? I'm getting discouraged.








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        ABS Brakes - warning light keeps coming on V70-XC70 2001

        posted by  tina on  Tue Aug 4 17:27 CST 2009
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        last visit: Thu Nov 24 09:34 CST 2011
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        You can do this yourself! Removal and install take less than 15 minutes. Directions are on Victor's website. Our S70 had the same problem recently, took the ABS off (on our car I removed the air box to get to the lower crews, as he describes for turbos which ours is not) but it is a very very straightforward removal and install. Don't pay a mechanic to do it.








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        ABS Brakes - warning light keeps coming on V70-XC70 2001

        posted by  KlausC on  Tue Aug 4 17:13 CST 2009
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        last visit: Fri Oct 24 10:15 CST 2014
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        $300CDN to R&R an ABS module??? Less than 1 hour of labor? All he has to do is remove the air cleaner, unscrew the module, unplug the old one, plug in the new one and put it all back? It is not hard for DIY.

        Klaus
        --
        The more I learn, the more I forget. So why learn?








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    ABS Brakes - warning light keeps coming on V70-XC70 2001

    posted by  KlausC on  Mon Aug 3 04:48 CST 2009
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    last visit: Fri Oct 24 10:15 CST 2014
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    The CEL might just be unrelated to your ABS problem. The ABS module has a tendancy to fail due to poor use of soldering joints. The dealer will try to sell you a new unit for a LOT of money, but you can have it repaired:

    http://home.earthlink.net/~vicrocha/

    All you need is an E5 torx driver and a few days of turn around. The car is driveable without the ABS module, just no speedo signal on the dash.

    Get your codes read for free at most auto parts stores.

    Klaus
    --
    The more I learn, the more I forget. So why learn?







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