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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 P0351: Ignition Coil A Primary/Secondary Circuit

DTC P0351: Ignition Coil A Primary/Secondary Circuit

WARNING: This page is about a different variant/trim than selected.
P0351 - IGNITION COIL A PRIMARY/SECONDARY CIRCUIT

Description:  Each ignition primary circuit is continuously monitored. The test fails when the powertrain control module (PCM) does not receive a valid ignition diagnostic monitor (IDM) pulse signal from the ignition module (integrated in the PCM).
Possible Causes: 
  • Open or short in the ignition START/RUN circuit
  • Open coil driver circuit in the harness
  • Coil driver circuit shorted to ground
  • Damaged coil
  • Coil driver circuit shorted to PWR
Diagnostic Aids:  When checking functionality of the coil driver circuit, crank the engine using the engine cranking diagnostic mode. Refer to DIAGNOSTIC MODES .
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - GO to PINPOINT TEST JF . GO to PINPOINT TEST JF .
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