DTC P0350: - Ignition Coil Primary/Secondary Circuit
DTC P0350: - IGNITION COIL 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: |
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| Diagnostic Aids: | A P035x diagnostic trouble code (DTC) only sets for a coil primary circuit failure. A secondary ignition coil or spark plug failure does not set a P035x DTC. A P030x DTC does not set for a coil primary circuit malfunction. A P035x DTC may set with or without a P030x DTC; however a P035x DTC sets first. When this DTC is set, the powertrain control module (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 powertrain control module (PCM) will not be damaged. Do not replace the PCM with out verifying the coil driver functionality. Use the 12-volt non-powered test lamp to verify START/RUN voltage at the ignition coil harness connector. Check the coil driver circuit for open, short to VPWR, or short to ground. |
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| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test JE . | ||