DTC Advanced Diagnostics: P030C, P030F, P031C, P031F, P035C, P035F (3.0L Engine)

DTC P030C: No. 1 Cylinder Ignition Coil Circuit High Voltage DTC P030F: No. 2 Cylinder Ignition Coil Circuit High Voltage DTC P031C: No. 3 Cylinder Ignition Coil Circuit High Voltage DTC P031F: No. 4 Cylinder Ignition Coil Circuit High Voltage DTC P035C: No. 5 Cylinder Ignition Coil Circuit High Voltage DTC P035F: No. 6 Cylinder Ignition Coil Circuit High Voltage

General Description

Courtesy of HONDA, U.S.A., INC.

The ignition coils are controlled by the duty command from the powertrain control module (PCM) and the PCM provides energy to the ignition coil and ignites the spark plug. The output driver circuit in the PCM monitors the voltage level of the IGN terminal. If the abnormality of the terminal voltage level is detected, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type

Execution	Continuous
Sequence	None
Duration	Depending on the driving condition
DTC Type	One drive cycle, MIL on

Enable Conditions

Condition
State of the engine	Running

Malfunction Threshold

The IGN terminal voltage level is in the range of short to power voltage for at least 0.5 second* or 20 crankshaft revolutions**.

*: During engine stall**: During engine running

Possible Cause

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

DTC: P030C

No. 1 ignition coil IGN01 line short to power

DTC: P030F

No. 2 ignition coil IGN02 line short to power

DTC: P031C

No. 3 ignition coil IGN03 line short to power

DTC: P031F

No. 4 ignition coil IGN04 line short to power

DTC: P035C

No. 5 ignition coil IGN05 line short to power

DTC: P035F

No. 6 ignition coil IGN06 line short to power

Diagnosis Details

Conditions for setting the DTC

When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, the freeze data, and the on-board snapshot are stored in the PCM memory.

Conditions for clearing the DTC

The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.