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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1146 ((Heating & Air Conditioning - Electrical Diagnostics - 1500)) >> DTC Troubleshooting >> B11D3-00-A/C Cooldown Test Performance - Compressor Not Engaged >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
LOSS OF COMMUNICATION WITH THE PCM OR MULTIPLE BUS PROBLEMS
PCM A/C COMPRESSOR DTCS
A/C SYSTEM LEAK
HVAC MODULE

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  HVAC PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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