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Volvo Specific Fault Reader - Anti Skid Service

  • 30-08-2021 8:06pm
    #1
    Dr_Colossus
    Registered Users, Registered Users 2 Posts: 3,191 ✭✭✭


    Haven't found any recent post on this Volvo matter in the last number of years so starting afresh.

    Have a 2007 Volvo S60 2.0T petrol with 275k km in Dublin 15. Car going well and otherwise in good condition but about 2-3 weeks ago the Anti Skid Service warning message came up and the little orange triangle skid icon. No problems with the ABS in terms of functioning or warning light and no fault codes show on the generic OBD reader I have. Having read a good few different reports/forums the warning looks related to a number of possible areas, order in terms of likelihood below:

    1) Brake Control Module (BCM) Electronic module located under the hydraulic pump under the engine compartment fuse box

    2) Steering angle sensor located behind the airbag in the steering wheel. Most online reports show this to be the main culprit.

    3) YAW sensor located under the passenger seat

    4) One or more ABS sensors


    All expensive modules/sensors especially on a trial and error basis with the general consensus of electrical gremlins to keep throwing parts at it until you find the solution.

    I went through the below flow chart on Sat and it does indicate the BCM may be the issue. XeMODex looks to be an American company where you send them your faulty BCM and they recondition it for the pricey sum of $550. Looks to be a couple of places in the UK doing the same for a fraction of the cost but postage to and from a problem with Brexit etc. Reconditioning at least doesn't warrant reprogramming which sounds like a major obstacle with trying to get a dealership on board. Some YouTube videos of people cutting open their own BCMs and resoldering connections which can give trouble but haven't seen any that were successful.

    https://xemodex.com/us/bcm-diagnostic-flowchart-for-volvo-2005-2013-xc90/

    Anyway put the car through the NCT last week and they failed it on the Anti Skid Service warning despite a clean OBD Faults sheet. It needs a bit of mechanical worn on worn bushes and could do with changing the front disks and pads (did the rear a few years ago) but no point in doing that if the Anti Skid Service puts the car off the road.

    Anyway would anyone have or know of a place that would have a Volvo specific fault reader to narrow down the likely culprit?



Comments

  • #2
    kirving
    Registered Users, Registered Users 2 Posts: 6,129 ✭✭✭kirving


    This showed up for me on an 2008 S40 IIRC. Low battery I think caused it.

    I remember looking up all sorts and expecting an expensive bill. I honestly can't prove that this fixed it, but I went back out to the car and turned the wheel from lock to lock and back (some forum trick I saw) and it went away and never returned.

    Not sure whether it reset, or moved a loose connection or what, or if the battery simply warmed up in the meantime, but I was happy at the time!



    https://www.delphiautoparts.com/gbr/en/article/ready-reset-go-steering-angle-sensor-calibration

    •   Self-calibration: Some newer vehicles, can self-calibrate or auto calibrate by turning the steering wheel from lock to lock to centre and then cycling the key. Others will also have a set of commands that need to be performed for the calibration to initiate. 



  • #3
    Dr_Colossus
    Registered Users, Registered Users 2 Posts: 3,191 ✭✭✭Dr_Colossus


    Thanks for the response and the link/tip above. I've read quite a few forums and watched a number of YouTube videos since this warning message first appeared and hadn't come across that.

    My battery is only a few years old and has good voltage readings so not expecting that has anything to contribute with my issues. Anyway tried the above and within about 10 meters of a straight line the warning message disappeared much to my surprise. Message remained off for a good 30min test drive until I parked in a tight spot with plenty of steering turns. Tried the above again to reset and all was good for a couple of days until parking again so I'm now lead to believe that it's the steering angle sensor (SAS or clock spring) that's faulty rather than the BCM. A lot of reports indicate that additional signs of a faulty SAS are problems with your cruise control or other steering wheel buttons but all mine work first touch. Of course a new sensor is big bucks and mixed reports as to whether it needs reprogramming so more reading and testing required.



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