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Thread: TCS 28 No communication

  1. #1

    Default TCS 28 No communication

    Hi
    New to this site. Look forward to replies
    I just started to get the ABS and Traction control lights along with service vehicle soon message...
    When checking the codes I got this: TCS 28 No comm. Does anyone have any ideas what going on? No other codes except for an HVAC issue with a door...

  2. #2
    Join Date
    Jul 2016
    Posts
    10

    Default

    Hello
    You did not say if the code is in history or if the light is on solid

    Sent from my SM-T530NU using Tapatalk

  3. #3

    Default

    The light is on solid and there isn't any H or C prob because it's not communicating?

  4. #4
    Join Date
    Dec 2011
    Posts
    184

    Default

    NO Comm is always current.

    I'd check with the ground point associated with that module. Offhand, I'm not sure which one.

  5. #5

    Default

    Is this a common problem? Has anyone else had this issue?

  6. #6

    Default

    HI there,

    First, please provide your VIN so I may do further research. You do not give us a year on your vehicle.

    The first thing I would do is check your MAXIFUSEs at the underhood electrical center. Make certain they are all good. The will be labeled ABS and ABSELEC . There is also a 10 amp mini fuse labeled ABSTRANS.

    Make certain all those are good and then if they are, remove the main connector from the ABS control module to assure there is not any burned connector pins or the like.

    Please let us know how you make out.

    Paul
    GM World Class Certified Service Technician.
    Like us on Facebook: www.facebook.com/corvettemechanic
    Twitter: www.twitter.com/GMvettemechanic

  7. #7

    Default Oops!

    Quote Originally Posted by c4c5specialist View Post
    HI there,

    First, please provide your VIN so I may do further research. You do not give us a year on your vehicle.

    The first thing I would do is check your MAXIFUSEs at the underhood electrical center. Make certain they are all good. The will be labeled ABS and ABSELEC . There is also a 10 amp mini fuse labeled ABSTRANS.

    Make certain all those are good and then if they are, remove the main connector from the ABS control module to assure there is not any burned connector pins or the like.

    Please let us know how you make out.

    Paul
    VIN 1G1YY32G9W5122691
    Thanks for the response. I thought that my screen name pretty much said what my cars year was but should have added it to the post. I haven't tried any of your suggestions but I will do so today or tomorrow. Thank you very much for your help

  8. #8

    Default

    Tried what you suggested and the ABSTRANS mini fuse was blown...I tried to replace it and the new fuse blew as well.

  9. #9

    Default

    HI there,

    Yes, I saw 1998 however, mid year production of Corvette, the location of the electronic brake traction control module changed from the REAR mounted to the FRONT mounted so that is why I asked.

    You have JAG option code and it is the front mounted ABS unit, so I would next recommend that you remove the electrical connector at the module located directly in front of the power steering pump and behind the radiator and inspect it. It is large, flat and does go directly into the side of the module. You are looking for any burned terminals or blackness in anyway.

    Take a picture of the connector part that plugs in and show us exactly what you have and we can proceed.

    The ABSTRANS fuse powers the ABS communications but also powers the F45 suspension on equipped cars. You have the soft ride FE1 suspension system so this other half of the circuit is not a concern.

    Let us know how you make out, Paul
    GM World Class Certified Service Technician.
    Like us on Facebook: www.facebook.com/corvettemechanic
    Twitter: www.twitter.com/GMvettemechanic

  10. #10

    Default

    Was trying to upload a pic but not having any luck. However, I did look at the connector like you said and both female and male sides looked good and there was no burning or corrosion anywhere that I could see.

  11. #11

  12. #12

    Default

    HI there,

    OK< so I do not see the larger flat terminals in the first picture, however the male sides looked good.

    Now, with the module disconnected, please install a new fuse and see if the fuse pops without having the module connected.

    Let us know what you have.

    Paul
    GM World Class Certified Service Technician.
    Like us on Facebook: www.facebook.com/corvettemechanic
    Twitter: www.twitter.com/GMvettemechanic

  13. #13

    Default

    Pulled the module connector and tried placing the fuse back in. It didn't blow the fuse.

  14. #14

    Default

    HI there,

    So it is possible that the module has an internal failure, which is shorting the fuse popping it.

    Did you notice if the wiring has any rubbed throughs on it???

    Were there any burned marks on the female LARGE flat terminals????

    Allthebest, Paul
    GM World Class Certified Service Technician.
    Like us on Facebook: www.facebook.com/corvettemechanic
    Twitter: www.twitter.com/GMvettemechanic

  15. #15

    Default

    I checked the large pins and they seem to be ok and no burning of any kind. Wire's look good as well.
    Looks like I may have a mess on my hands...

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