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Showing results for tags 'tccm'.
Found 3 results
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Can anyone tell me where the black and white stripe wire that is supposed to be assigned to PCM C2/red connector pin number 19 goes to or comes from? I cannot find a spaghetti one line diagram for the PCM for either C1 or C2 connectors. Thank you for any help you can provide. -
Have an 03 gmc 2500hd that ive been slowly rebuilding and just passed inspection it used to have service 4wd untill i cleaned up the driver side grounds and started to shift fine atleast long enough to pass, until today it shifted by itself into 4low by itself once i turned the truck on now it will not come out even in neutral tried going R-N-D-R-N...etc to kick it back on but no luck, confirmed it wasn't the 4x4 selector buttons, its not pulling any codes atleast on my scan tool. hitting up the junk yard tomorrow just going to grab a used tccm, actuator off the front diff and transfer case shift encoder since they are all super easy to pull and dirt cheap at my local junk yard and i have nothing but time at the moment. just wondering if any of you guys have had good/bad luck with any of those parts failing on you and causing the truck to get stuck into 4low/hi or the truck shifting into those selections by itself. and what your fixes and problems were. thanks guys!
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Have an 03 gmc 2500hd that ive been slowly rebuilding and just passed inspection it used to have service 4wd untill i cleaned up the driver side grounds and started to shift fine atleast long enough to pass, until today it shifted by itself into 4low by itself once i turned the truck on now it will not come out even in neutral tried going R-N-D-R-N...etc to kick it back on but no luck, confirmed it wasn't the 4x4 selector buttons, its not pulling any codes at least on my scan tool. hitting up the junk yard tomorrow just going to grab a used tccm, actuator off the front diff and transfer case shift encoder since they are all super easy to pull and dirt cheap at my local junk yard and i have nothing but time at the moment. just wondering if any of you guys have had good/bad luck with any of those parts failing on you and causing the truck to get stuck into 4low/hi or the truck shifting into those selections by itself. and what your fixes and problems were. thanks guys!
