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sevice 4wd

  1. Service 4wd & Service Trailer Brake

    Colorado Diesel General Discussions
    I have these messages popping up. I havnt even used my 4wd or trailer brakes? Check engine light is not on. I try reading code and zero codes pop up?? What is going on? I tried cleaning actuator connection. No luck? Vehicle is out of warranty. Anyone know what it might be?? Frustrating.
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