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  1. A

    P0722 code

    Hopefully I located problem. Harness to TCM somehow was being rubbed by serpentine belt.
  2. A

    P0722 code

  3. A

    P0722 code

    RGR, I'll see if I can locate a shop with one.
  4. A

    P0722 code

    Have a 2015 Chevrolet 2500HD, 180K, all stock. Started to town, CEL came on, and truck didn't want to shift gears. Scanner revealed P0700 and P0721. Replaced output speed sensor, and P0722 code now. Checked connector and seems good. Truck will barely pull itself under power now. Any suggestions?
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