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Marc

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    From what I found online, its the gray 1036 IPC Class 2 serial data wire that comes from the PCM and bring all the informations (temp gage, oil press, gas gage ...etc) all this info on 1 normal wire...??!. So it must be on my board that something is wrong. A burned or crack circuit...is there a way to visually check where the problem could be?
  5. Marc
    Wich wire (color) from the connector to the dash IP brings the engine temperature signal?
  6. Marc
    The temperature gage in my 2003 1500hd is going round the clock and stays in lower position, not coming back to initial position. Changed the stepper motor, still doing the same thing. No code on obd2.... should I change the sending unit..? Could it be cracks on the green board behind the cluster, or wiring coming to the cluster..? Truck runs fine and smooth (no overheating to my knowledge)
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