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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 45 (2.0L - DTCS P04C2 To P0523) >> DTC Troubleshooting >> P051D Crankcase Pressure Sensor "A" Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
CRANKCASE PRESSURE SENSOR PRESSURE SIGNAL CIRCUIT SHORTED TO THE 5-VOLT SUPPLY CIRCUIT
CRANKCASE PRESSURE SENSOR PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE
CRANKCASE PRESSURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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