U1152 Diagnostic Trouble Code Discussion for August 2010
Lost Communication With HCM Module
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| Help Request | Posted | |
| 2003 GMC Sierra 2500 HD 6.6L MIL Lamp on VIN: 1GCHK23123 U1152: loss of acm/hvac comm. Greeting fellow techs. This truck has had this problem for almost 1 year now. It is very intermittent- have never had it happen on test drives etc. At first the vss in the transfer case was replaced and the transfer case was rebuilt. Problem still came back. W... |
August 27, 2010 |
