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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 859 (Engine Controls - Powertrain DTC Charts And Descriptions - (Hybrid)) >> DTC Diagnosis >> P0351 - Ignition Coil A Primary/Secondary Circuit

P0351 - Ignition Coil A Primary/Secondary Circuit

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
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 toDIAGNOSTIC MODES .
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All   - refer to PINPOINT TEST JF . refer to PINPOINT TEST JF .
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