DTC P0351-P0358: Ignition Control Circuit: Description

The ignition system on this engine uses an individual ignition control module (ICM) for each cylinder. The Powertrain Control Module (PCM) controls the ignition system operation. The PCM controls each coil using one of 8 ignition control (IC) circuits. The PCM commands the IC circuit low if a spark event is requested. This causes the ICM to energize the ignition coil to create a spark at the spark plug. Each ICM has the following circuits:

• An ignition control circuit
• An Ignition 1 voltage circuit
• A ground circuit
• A reference low circuit

The PCM controls the sequence and the timing. This DTC sets if the IC circuit is out of range.