Trailer ABS light

Discussion in 'Volvo Forum' started by 86scotty, Nov 17, 2018.

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  1. Nov 17, 2018 #11
    xsetra

    xsetra Road Train Member

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    Are you talking about the abs warning light in the dash or in the rear side of trailer?
     
    xsetra, Nov 17, 2018
    xsetra, Nov 17, 2018
    #11
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  3. Nov 17, 2018 #12
    86scotty

    86scotty Road Train Member

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    Dash. I never get an ABS light on the trailer.

    @IraqRalph and Western Flyer, thanks for the crafty replies about pulling bulbs and taping over the light but I need to fix this properly. I've done this stuff on old personal vehicles but am not going to try to fool it at the risk of DOT citations.
     
    86scotty, Nov 17, 2018
    86scotty, Nov 17, 2018
    #12
  4. Nov 17, 2018 #13
    Snailexpress

    Snailexpress Road Train Member

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    ABS module located under central dash console. To reach to this SOB you need to open fuse cover and remove all plastic down from here. Ash tray and radio I think. The ABS module is a top one.
    ABS module could be programmed to communicate with trailer ABS thru the center wire. It sends messages forth and back. Make sure trailer and truck ground connection is good.
    I have seen trucks with ground cable from frame to fifth wheel to have good ground between.
    To deeper diagnostic need to run software test.
    Dealer is expensive like hell, go buy adapter for $300 the soft ACOM diagnostic is free from Bendix.
    ACom will allow you to check and calibrate ATS, Steering wheel and lot of other tings.
    Never remove or mask trailer ABS light. It should light on for 2-3 seconds every key on. If not - DOT will give you a ticket.
     
    Snailexpress, Nov 17, 2018
    Snailexpress, Nov 17, 2018
    #13
    Rideandrepair and HopeOverMope Thank this.
  5. Nov 18, 2018 #14
    xsetra

    xsetra Road Train Member

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    The ABS trailer light should come on for a couple seconds and turn off,Everytime you turn the truck key on.

    Snailexpress gave you more information about your truck than I could.
    Good luck.
     
    xsetra, Nov 18, 2018
    xsetra, Nov 18, 2018
    #14
    Rideandrepair Thanks this.
  7. Nov 20, 2018 #15
    86scotty

    86scotty Road Train Member

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    Thanks for the info guys. All that is good to know but I didn't have to dig that far. It was the 40 amp maxi-fuse in the fuse box under the hood. I shoulda checked the fuses before I made this thread but I couldn't believe it was just a fuse.

    Every time I've had ABS issues with a vehicle it has been much more complicated so i didn't even suspect anything as simple as a fuse.

    Moving on.....thanks again.
     
    86scotty, Nov 20, 2018
    86scotty, Nov 20, 2018
    #15
    Snailexpress, xsetra, Rideandrepair and 1 other person Thank this.
  8. Nov 21, 2018 #16
    xsetra

    xsetra Road Train Member

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    Good to hear the solution.
     
    xsetra, Nov 21, 2018
    xsetra, Nov 21, 2018
    #16
    Rideandrepair Thanks this.
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