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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 96 (Hybrid Control Processor Module (HCP) - DTCS P1A11-00 To P1AE8-00) >> DTC Troubleshooting >> P1AC6-00 MCPA Crankshaft Position Signal Sensor Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
BUFFERED CRANK SIGNAL IN CIRCUIT OPEN OR HIGH RESISTANCE
BUFFERED CRANK SIGNAL IN CIRCUIT SHORT TO GROUND
BUFFERED CRANK SIGNAL IN CIRCUIT SHORT TO VOLTAGE
CRANK REPLICATION SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
CRANK REPLICATION SIGNAL CIRCUIT SHORT TO GROUND
CRANK REPLICATION SIGNAL CIRCUIT SHORT TO VOLTAGE
CRANK SHAFT POSITION (CKP) SENSOR
POWERTRAIN CONTROL MODULE (PCM)
POWER INVERTER MODULE (PIM)

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