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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 554 (Driver Door Module (DDM) (DMFL/R) - Electrical Diagnostics - 1500) >> Diagnosis And Testing >> U0164-00-Lost Communication With HVAC Control Module >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY DTC IS ACTIVE 

  1. Cycle the ignition on.
  2. With the scan tool, read the active DTCs.

    Does the scan tool display; U0164-00-LOST COMMUNICATION WITH HVAC CONTROL MODULE as Active?

    Yes 

    • Refer to the DTC INDEX - 1500 and perform the U0164-00-Lost Communication with HVAC Control Module.

    No 

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