DTC P0320: Ignition/Distributor Engine Speed Input Circuit

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator L. However, it is still accessible from the selected car via links, so may be relevant.

P0320 - IGNITION/DISTRIBUTOR ENGINE SPEED INPUT CIRCUIT

Description:	The ignition engine speed sensor input signal to powertrain control module (PCM) is continuously monitored. The test fails when the signal indicates two successive erratic profile ignition pickup (PIP) pulses occurred.
Possible Causes:	Incorrect connections Arcing secondary ignition components (coil, wires and plugs) Arcing relays or other high current devices Incorrect, damaged or corroded connections On board 2 way radio transmitter
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 .