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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls - Powertrain DTC Charts & Descriptions - (Hybrid)) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> DTC P0320: Ignition/Distributor Engine Speed Input Circuit

DTC P0320: Ignition/Distributor Engine Speed Input Circuit

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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: 
  • Loose wires/connectors
  • Arcing secondary ignition components (coil, wires and plugs)
  • On-board transmitter (2-way radio)
Diagnostic Aids:  The DTC indicates that two successive erratic PIP pulses occurred.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - GO to PINPOINT TEST NC .