DTC P05A8 (1.5 L Engine)

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DTC P05A8: Shutter Grille Actuator Malfunction

General Description

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

The shutter grille system opens/closes the shutter depending on the driving conditions. The system improves fuel efficiency by reducing the wind drag. The shutter is controlled by the shutter grille which integrates the actuator. The powertrain control module (PCM) sends open/close requests which depends on the driving conditions to the shutter grille via the local interconnect network (LIN) line. If the actuator voltage is detected as abnormal, the PCM confirms the abnormality and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type

Execution	Continuous
Sequence	None
Duration	2.5 seconds or more
DTC Type	One drive cycle, MIL off

Enable Conditions

Condition
State of the engine	Running

Malfunction Threshold

The shutter grille actuator voltage is 17.5 V or more, or 7.5 V or less for at least 2.5 seconds when the power supply voltage of the PCM is 10.5 V or more.

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.

Shutter grille +B SHUTTER GRILL UPR line open
Shutter grille +B SHUTTER GRILL UPR line short to ground
Shutter grille +B SHUTTER GRILL UPR line short to power
Shutter grille GND line open
Shutter grille internal circuit failure

Diagnosis Details

Conditions for setting the DTC

When a malfunction is detected, a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC

The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool clear command.