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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 212 (6.7L - DTCS P0299 To P0604 - 2500 & 3500) >> Diagnosis And Testing >> P051B-Crankcase Pressure Sensor Circuit Range/Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
CRANKCASE PRESSURE SENSOR
ICE IN THE CLOSED CRANKCASE VENTILATION SYSTEM
RESISTANCE OR SHORT CIRCUIT IN WIRING HARNESS
CRANKCASE VENTED TO ATMOSPHERE
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L  .