P0353
DTC P0353
CIRCUIT DESCRIPTION
There are 3 dual-tower ignition coils integrated with the ignition control module (ICM). The ICM contains coil driver circuits that operate the 3 coils. The ICM wiring includes the following circuits:
- An ignition 1 voltage circuit
- A ground circuit
- An ignition coil 1 control circuit
- An ignition coil 2 control circuit
- An ignition coil 3 control circuit
- A low reference circuit
The powertrain control module (PCM) controls each ignition coil by transmitting timing pulses to the ICM on each of the ignition coil control circuits to enable properly timed spark events. The ignition coil 1 controls spark for cylinders 1 and 4. The ignition coil 2 controls spark for cylinders 2 and 5. The ignition coil 3 controls spark for cylinders 3 and 6.
If the PCM detects an incorrect voltage on any of the ignition coil control circuits, the corresponding DTC sets.
DTC DESCRIPTORS
This diagnostic procedure supports the following DTCs:
- DTC P0351 Ignition Coil 1 Control Circuit
- DTC P0352 Ignition Coil 2 Control Circuit
- DTC P0353 Ignition Coil 3 Control Circuit
CONDITIONS FOR RUNNING THE DTC
- The engine is cranking or running.
- The DTCs run continuously when the above conditions are met.
CONDITIONS FOR SETTING THE DTC
The PCM detects an incorrect voltage in an ignition coil control circuit for 90 out of 100 engine cycles.
ACTION TAKEN WHEN THE DTC SETS
- The control module illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.
- The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.
CONDITIONS FOR CLEARING THE MIL/DTC
- The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
- A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
- Clear the MIL and the DTC with a scan tool.
TEST
