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  1. #1
    Join Date
    Apr 2016
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    USA
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    56

    Default TRACS OFF and ABS are on. 1998 XC

    No idea why, car seems to drive just fine. A super quick search seems to state "ABS module."

    It's not here with me, but how would I go about further diagnosing? Just curious.

    Also, it is my understanding that these lights won't be an issue at inspection, since they arent CEL...

  2. #2
    Join Date
    Apr 2003
    Location
    Devon PA
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    11,409

    Default

    ABS would say ABS
    Exactly what light(s) are showing, IIRC there is no TRACS light on an XC as it does not have TC
    All emails please use: jrl1194 (at) aol.com

    2007 V70 2.5T White/Oak, 112K miles. My daily driver and GORGEOUS
    2000 V70R wife's. Won't sell, now at 148K miles !! and still (almost) perfect.
    2000 S70 GLT SE with 29,000 miles!!! A time capsule, V70R front bumper, Volans, etc. SOLD!!! (I Will regret selling this!)

  3. #3
    Join Date
    Oct 2007
    Location
    Fairbanks, Alaska
    Posts
    234

    Default

    Sounds like an ABS issue, alright.
    This is a great resource for the Volvo community:

    https://www.midwest-abs.com

    Read Up!

    '98 " Last of the Good Ones!" V70 R
    Upsolute ECU - E-Codes/SilverStars - ArcticGrade Oil Lines - HD SkidPlate - Spoiler - XC Grill -

  4. #4
    Join Date
    Apr 2016
    Location
    USA
    Posts
    56

    Default

    It definitely says both TRACS OFF and ABS... 1998 XC.



    Further, pressing the TRACS button does nothing

    I will check that link..

  5. #5
    Join Date
    Oct 2007
    Location
    Fairbanks, Alaska
    Posts
    234

    Default

    Quote Originally Posted by JRL View Post
    ABS would say ABS
    Exactly what light(s) are showing, IIRC there is no TRACS light on an XC as it does not have TC
    You DO have TRACS, and it's an ABS system based feature - ABS goes out, TRACS follows...
    What you don't have on a '98 is STC - Stability Traction Control. That came later.

    '98 " Last of the Good Ones!" V70 R
    Upsolute ECU - E-Codes/SilverStars - ArcticGrade Oil Lines - HD SkidPlate - Spoiler - XC Grill -

  6. #6
    Join Date
    Apr 2016
    Location
    USA
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    56

    Default

    Quote Originally Posted by BEJinFBK View Post
    You DO have TRACS, and it's an ABS system based feature - ABS goes out, TRACS follows...
    What you don't have on a '98 is STC - Stability Traction Control. That came later.
    I'm thinking ABS module, just based on a quick read. The Speedo works fine; I know sometimes, it can randomly drop out. Mine does not.

    I do not think it will ever leave the Sport mode setting; 99 and 2000, this selector was changed to only the "Winter" button. Seriously, does the "Economy"" setting do or accomplish anything? Is it used for long highway drives? What's the deal..

    Is replacing ABS module from that guy a good place to start? (The car drives fine.)

  7. #7
    Join Date
    Oct 2007
    Location
    Fairbanks, Alaska
    Posts
    234

    Default

    Quote Originally Posted by GearheadTool View Post
    I'm thinking ABS module, just based on a quick read. The Speedo works fine; I know sometimes, it can randomly drop out. Mine does not.

    I do not think it will ever leave the Sport mode setting; 99 and 2000, this selector was changed to only the "Winter" button. Seriously, does the "Economy"" setting do or accomplish anything? Is it used for long highway drives? What's the deal..

    Is replacing ABS module from that guy a good place to start? (The car drives fine.)
    IIRC, the speedo only reads from the FL tone ring sensor,
    but there are plenty of other failure points that can disable
    ABS/TRACS resulting in those two lights.

    You may have a bad sensor at one of the other three wheels,
    and you can run a simple check on them with a DMM, but there's
    a higher probability that you have bad solder joints in the module.

    The SEW switch selects different shift points in the TCU.
    Long highway drives shouldn't care what you use. Once
    you hit highway speeds, you're pretty much in 4th.

    W is NOT recommended as it starts the car in a higher gear
    to reduce torque, but puts more strain on the tranny. W Bad...

    If you value the added safety of ABS, Fix It. Cheap insurance!
    And you won't know when you really need it until you REALLY need it.
    And Matty at MidWest is the Man.

    '98 " Last of the Good Ones!" V70 R
    Upsolute ECU - E-Codes/SilverStars - ArcticGrade Oil Lines - HD SkidPlate - Spoiler - XC Grill -

  8. #8
    Join Date
    Apr 2016
    Location
    USA
    Posts
    56

    Default

    Quote Originally Posted by BEJinFBK View Post
    IIRC, the speedo only reads from the FL tone ring sensor,
    but there are plenty of other failure points that can disable
    ABS/TRACS resulting in those two lights.

    You may have a bad sensor at one of the other three wheels,
    and you can run a simple check on them with a DMM, but there's
    a higher probability that you have bad solder joints in the module.

    The SEW switch selects different shift points in the TCU.
    Long highway drives shouldn't care what you use. Once
    you hit highway speeds, you're pretty much in 4th.

    W is NOT recommended as it starts the car in a higher gear
    to reduce torque, but puts more strain on the tranny. W Bad...

    If you value the added safety of ABS, Fix It. Cheap insurance!
    And you won't know when you really need it until you REALLY need it.
    And Matty at MidWest is the Man.
    Matty at Midwest even sends you the funky socket and you send it back, making it a true camaraderie of sorts of we enthusiast Volvo owners?

  9. #9
    Join Date
    Apr 2016
    Location
    USA
    Posts
    56

    Default

    I think I'm gonna Stage Zero this one.

  10. #10
    Join Date
    Apr 2016
    Location
    USA
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    Default

    Quick update: The CEL seems to come on regularly. Weird part: When I scan it for codes... there ARE NONE! Strange.

    It is a 1998, so, it's only the OBD2 read to pass. ......

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