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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 373 ((Heating & Air Conditioning - Electrical Diagnostics - 2500 Hd & 3500 Hd)) >> Diagnosis And Testing >> B11C2-11-Front Mode Door-1 Control Circuit-Short To Ground >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
MODE DOOR 1 DRIVER CIRCUIT SHORTED TO GROUND
COMMON DOOR DRIVER 2 CIRCUIT SHORTED TO GROUND
MODE DOOR 1 ACTUATOR
A/C HEATER MODULE

Always perform the HVAC Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  . 

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