P0354 - Ignition Coil D Primary/Secondary Circuit

4-62 Powertrain DTC Charts and Descriptions

Diagnostic Trouble Code (DTC) Charts and Descriptions

P0354 - Ignition Coil D Primary/Secondary Circuit (Continued) Application Key On Engine Off Key On Engine Running Continuous Memory

All GO to Pinpoint Test JF.

P0355 - Ignition Coil E 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

• COP5 circuit open

• COP5 circuit short to voltage

• COP5 circuit short to ground

• Damaged COP

Diagnostic Aids: The DTC P0355 only sets for a coil primary circuit failure. A secondary ignition coil or spark plug failure does not

set the DTC P0355. The DTC P0305 does not set for a coil primary circuit malfunction. The DTC P0355 may set with or without the DTC P0305, however the DTC P0355 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.

P0356 - Ignition Coil F 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

• COP6 circuit open

• COP6 circuit short to voltage

• COP6 circuit short to ground

• Damaged COP

Diagnostic Aids: The DTC P0356 only sets for a coil primary circuit failure. A secondary ignition coil or spark plug failure does not

set the DTC P0356. The DTC P0306 does not set for a coil primary circuit malfunction. The DTC P0356 may set with or without the DTC P0306, however the DTC P0356 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.

P0357 - Ignition Coil G 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

• COP7 circuit open

• COP7 circuit short to voltage

• COP7 circuit short to ground

• Damaged COP

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