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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 45 ((HVAC Systems - Electrical Diagnostics)) >> Electrical Diagnostics >> DTC Troubleshooting >> B10B2-A/C Cool Down Test Performance (ATC) >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. 1)  VERIFY THAT ALL OF THE COOLDOWN TEST PREREQUISITES WERE MET 

    Review the list of Cooldown Test prerequisites.

    • DTCs B1031 and B1032 must not be active. 
    • The refrigerant system must be adequately charged. 
    • The blower motor must operate correctly in all speeds. 
    • The work area ambient temperature must be above 18.3°C (65°F). 
    • The evaporator temperature must be above 18.3°C (65°F). 
    • The A/C compressor must be turned off. 

    Were all of the prerequisites met before running the Cooldown Test? 

    Yes 

    1. Go To  2).

    No 

    1. Run the Cooldown Test again after all of the prerequisites are met. Then, if DTC B10B2 is still active, Go To  2). Otherwise, Perform BODY VERIFICATION TEST - VER 1. (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING) .
  2. 2)  CHECK FOR DTCs IN THE PCM 

    With the scan tool, select PCM.

    Are any DTCs present in the PCM? 

    Yes 

    1. Diagnose and repair the DTC(s). For all gas engines, (Refer to ENGINE - DIAGNOSIS AND TESTING) . Run the Cooldown Test again after the repair is complete.
    2. Perform BODY VERIFICATION TEST - VER 1. (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING) .

    No 

    1. Refer to the COOLDOWN TEST - ATC AND MTC SYSTEMS for additional Cooldown Test related diagnostic information and testing procedures. Run the Cooldown Test again after the repair is complete.
    2. Perform BODY VERIFICATION TEST - VER 1. (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING) .
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