P0352 - Ignition Coil B Primary/Secondary Circuit

Powertrain DTC Charts and Descriptions 4-61

Diagnostic Trouble Code (DTC) Charts and Descriptions

P0352 - Ignition Coil B Primary/Secondary Circuit (Continued)

• CDB circuit short to ground (coil pack)

• Damaged COP (if equipped)

• Damaged coil pack (if equipped)

Diagnostic Aids: The DTC P0352 only sets for a coil primary circuit failure. A secondary ignition coil or spark plug failure does not

set the DTC P0352. The DTC P0302 does not set for a coil primary circuit malfunction. The DTC P0352 may set with or without the DTC P0302, however the DTC P0352 sets first. When this DTC is set, the PCM enters failure mode effects management (FMEM) which shuts down the injector for the associated cylinder in order to protect the catalytic converter. This is normal operation do not attempt to diagnose the injector with this DTC present. If a primary coil is damaged due to a harness short to ground the PCM will not be damaged. Do not replace the PCM without verifying the coil driver functionality. Use the 12 volt non-powered test lamp to verify VPWR voltage at the ignition coil harness connector. Check the coil driver circuit for open, short to voltage, or short to ground.

Application Key On Engine Off Key On Engine Running Continuous Memory

EcoSport 1.6L, GO to Pinpoint Test JE. Fiesta 1.6L TiVCT, KA 1.5L

All others GO to Pinpoint Test JF.

P0353 - Ignition Coil C Primary/Secondary Circuit

Description: This DTC sets when the PCM does not receive a valid ignition diagnostic monitor (IDM) pulse signal from the

ignition module PCM.

Possible Causes: • VPWR circuit open

• VPWR circuit short to ground

• COP3 circuit open

• COP3 circuit short to voltage

• COP3 circuit short to ground

• Damaged COP

Diagnostic Aids: The DTC P0353 only sets for a coil primary circuit failure. A secondary ignition coil or spark plug failure does not

set the DTC P0353. The DTC P0303 does not set for a coil primary circuit malfunction. The DTC P0353 may set with or without the DTC P0303, however the DTC P0353 sets first. When this DTC is set, the PCM enters failure mode effects management (FMEM) which shuts down the injector for the associated cylinder in order to protect the catalytic converter. This is normal operation, do not attempt to diagnose the injector with this DTC present. If a primary coil is damaged due to a harness short to ground the PCM will not be damaged. Do not replace the PCM without verifying the coil driver functionality. Use the 12 volt non-powered test lamp to verify VPWR voltage at the ignition coil harness connector. Check the coil driver circuit for open, short to voltage, or short to ground.

Application Key On Engine Off Key On Engine Running Continuous Memory

All GO to Pinpoint Test JF.

P0354 - Ignition Coil D Primary/Secondary Circuit

Description: This DTC sets when the PCM does not receive a valid ignition diagnostic monitor (IDM) pulse signal from the

ignition module PCM.

Possible Causes: • VPWR circuit open

• VPWR circuit short to ground

• COP4 circuit open

• COP4 circuit short to voltage

• COP4 circuit short to ground

• Damaged COP

Diagnostic Aids: The DTC P0354 only sets for a coil primary circuit failure. A secondary ignition coil or spark plug failure does not

set the DTC P0354. The DTC P0304 does not set for a coil primary circuit malfunction. The DTC P0354 may set with or without the DTC P0304, however the DTC P0354 sets first. When this DTC is set, the PCM enters failure mode effects management (FMEM) which shuts down the injector for the associated cylinder in order to protect the catalytic converter. This is normal operation, do not attempt to diagnose the injector with this DTC present. If a primary coil is damaged due to a harness short to ground the PCM will not be damaged. Do not replace the PCM without verifying the coil driver functionality. Use the 12 volt non-powered test lamp to verify VPWR voltage at the ignition coil harness connector. Check the coil driver circuit for open, short to voltage, or short to ground.

2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015