P0320 CHRYSLER – No Crank Reference Signal At PCM

P0320 CHRYSLER Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Lack/Loss of Power,The engine may be harder to start,The engine may stumble or stall

P0320 CHRYSLER Possible Causes

Faulty Crankshaft Position Sensor (CKP),Crankshaft Position Sensor (CKP) harness is open or shorted,Crankshaft Position Sensor (CKP) circuit poor electrical connection,Faulty Powertrain Control Module (PCM)

P0320 CHRYSLER Description

The Crankshaft Position Sensor (CKP) is mounted to the transmission bellhousing at the left rear side of the engine block. Engine speed and crankshaft position are provided through the crankshaft position sensor. The sensor generates pulses that are the input sent to the Powertrain Control Module (PCM). The PCM interprets the sensor input to determine the crankshaft position. The PCM then uses this position, along with other inputs, to determine injector sequence and ignition timing. The sensor is a hall effect device combined with an internal magnet. It is also sensitive to steel within a certain distance from it.