DTC Advanced Diagnostics: P030B, P030E, P031B, P031E, P035B, P035E (3.0L Engine)

DTC P030B: No. 1 Cylinder Ignition Coil Circuit Low Voltage DTC P030E: No. 2 Cylinder Ignition Coil Circuit Low Voltage DTC P031B: No. 3 Cylinder Ignition Coil Circuit Low Voltage DTC P031E: No. 4 Cylinder Ignition Coil Circuit Low Voltage DTC P035B: No. 5 Cylinder Ignition Coil Circuit Low Voltage DTC P035E: No. 6 Cylinder Ignition Coil Circuit Low 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 OFF (low voltage) for at least 20 crankshaft revolutions despite the PCM outputs ON signal to the ignition coil.

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: P030B

No. 1 ignition coil IGN01 line short to ground
No. 1 ignition coil failure

DTC: P030E

No. 2 ignition coil IGN02 line short to ground
No. 2 ignition coil failure

DTC: P031B

No. 3 ignition coil IGN03 line short to ground
No. 3 ignition coil failure

DTC: P031E

No. 4 ignition coil IGN04 line short to ground
No. 4 ignition coil failure

DTC: P035B

No. 5 ignition coil IGN05 line short to ground
No. 5 ignition coil failure

DTC: P035E

No. 6 ignition coil IGN06 line short to ground
No. 6 ignition coil failure

Common

PCM internal circuit failure

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.