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  1. C

    No Rear Heat

    So, I did not have a DTC but bought the part anyway and it fixed the problem, at least part of it. Took me less time than I thought, the only midly frusting part was getting the upper passenger side plastic piece back into place (couldn't see where the snaps needed to line up). Now I get...
  2. C

    No Rear Heat

    JDA, did you happen to check to see if there was DTC before you bought the part and changed it out? I'm trying to avoid ordering the part until I'm sure that is the problem.
  3. C

    No Rear Heat

    Thanks! Did you happen to see if there was a DTC set before changing it out?
  4. C

    No Rear Heat

    Not a novel issue (several threads I have read pasted below for reference), but my 05 Yukon does not blow heat from the rear floor or ceiling vents. There is airflow from each of the vents but only cold air. Based on what I have read, it seems that the rear A/C control module is probably the...

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