DTC P0320: Ignition/Distributor Engine Speed Input Circuit

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DTC P0320: IGNITION/DISTRIBUTOR ENGINE SPEED INPUT CIRCUIT

Description:	This DTC sets when several erratic profile ignition pickup (PIP) pulses have occurred in the crankshaft position (CKP) sensor signal within a calibrated time period when the camshaft speed exceeds the equivalent speed of engine idle.
Possible Causes:	CKP+ circuit intermittent open (VR type) CKP- circuit intermittent open (VR type) CKP circuit intermittent open (Hall effect) VREF circuit intermittent open (Hall effect) SIGRTN circuit intermittent open (Hall effect) CKP+ circuit intermittent short to voltage (VR type) CKP- circuit intermittent short to voltage (VR type) CKP circuit intermittent short to voltage (Hall effect) VREF circuit intermittent short to voltage (Hall effect) SIGRTN circuit intermittent short to voltage (Hall effect) CKP+ circuit intermittent short to ground (VR type) CKP- circuit intermittent short to ground (VR type) CKP circuit intermittent short to ground (Hall effect) VREF circuit intermittent short to ground (Hall effect) SIGRTN circuit intermittent short to ground (Hall effect) CKP sensor incorrectly installed Damaged CKP sensor Incorrect, damaged or corroded connections Arcing secondary ignition components (coil, wires and plugs) Arcing relays or other high current devices (cooling fan or starter motor) On board 2 way radio transceiver Radio frequency interference or electromagnetic interference from an external source Improperly grounded high power aftermarket equipment
Diagnostic Aids:	The DTC indicates two successive erratic PIP pulses occurred.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST A .