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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 402 (Body Control Module (BCM) - DTCS B10B3-14 To B180F-11 - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> B1137-14-Cabin Heater 3 Control - Circuit Short To Ground Or Open >> 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 
PTC 3 RELAY CONTROL CIRCUIT OPEN
PTC 3 RELAY CONTROL CIRCUIT SHORTED TO GROUND
CABIN HEATER 3 RELAY
BODY CONTROL MODULE (BCM)
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