TCS ,and ABS( on the truck) lights on

Discussion in 'Volvo Forum' started by Jultrans178, Jan 12, 2020.

  1. Jultrans178

    Jultrans178 Bobtail Member

    8
    0
    Jan 12, 2020
    0
    Hello everyone!
    I'm in need of help in regards the TCS and ABS ( on the truck), please.
    The codes that I got on the computer are in the Brake ECU tab:

    MID 136 SID 89 FMI 2
    MID 136 SID 4 FMI 14

    My unit it's a 2012 Volvo vnl 670 ,Cummins isx ,13 speed.
    Vin CN 553443
    So the TCS light in the cluster it's solid ON, the switch on the dashboard it doesn't do anything if turned on/off.
    It started to be like this ,ON ,since I tried to enter the shop where the ground level was different, so I switched ON the front axle switch in order to move .Since then the TCS stayed on. While trying to switch it off from the button it doesn't do anything.
    I greatly appreciate your time and expertise into all your answers posted above. Hope you can help me.

    Thanks allot !
     
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  3. Mudman78

    Mudman78 Light Load Member

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    99
    May 23, 2016
    0
    Pull the plastic kick plate off on the lower left by the tilt column pedal. Check the pressure switches on the firewall. Pull the electrical connectors off one at a time and look for green corrosion on the connectors. Chances are water got in them and shorted the switches out.
     
    Jultrans178 Thanks this.
  4. Jultrans178

    Jultrans178 Bobtail Member

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    Jan 12, 2020
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    Thanks allot Mudman78!
    After reading everything that was posted here in regards the TCS ,ABS , I will definitely check on those 4 or so,sensors.
    Still trying to get information on those 2 codes.

    Thanks allot!
     
  5. Neilwhayes

    Neilwhayes Bobtail Member

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    14
    Jul 8, 2014
    miramichi nb. canada
    0
    MID 136 SID 89 FMI 2
    this code is for the steering column sensor it is linked to the abs/traction control system
    i believe usually a problem with a coroded wire, mine was a connector under the cab on inside of frame rail
    MID 136 SID 4 FMI 14
    sid 4 is your front drive axle, right side wheel, abs fault
     

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    Jultrans178 Thanks this.
  6. Jultrans178

    Jultrans178 Bobtail Member

    8
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    Jan 12, 2020
    0
    Thanks allot Neilwhayes! Much appreciated your time into it.
    I will finish this week loads and bring the truck to the shop to check on the Steering column sensor and the ABS sensor on the FR steer axle.
    Much appreciated again!


     
  7. rlupright

    rlupright Bobtail Member

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    Jun 23, 2020
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  8. rlupright

    rlupright Bobtail Member

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    Jun 23, 2020
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    Did you ever get your TCS light to go off , if so what was the fix , having the same issue with my Volvo , pretty much the same issue , spun the drive wheels entering a drive way and TCS light came on , truck is in the show , they are saying it needs a new ECU $4500 , any help would really be helpful.
     
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