DTC P05A3, P05B2
DTC P05A3: Shutter Grille Actuator (Upper) Malfunction DTC P05B2: Shutter Grille Actuator (Lower) Malfunction
General Description
The shutter grille system open/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 LIN line. Also the PCM receives failure information from the shutter grille via the LIN line. The PCM discriminates a failure by the signal value received via the LIN line. If the PCM receives a specified signal from the shutter grille, the PCM detects as a shutter grille LIN line open/short failure 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
Either of these conditions occurs:
- When the upper or lower actuator state of short to ground or EEPROM of the read / write errors of the motor has continued for at least 2.5 seconds or more.
- When the upper or lower actuator is the state of the transmit / receive error in LIN communication was continued at least 2.5 seconds 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.
DTC: P05A3
- Upper shutter grille LIN line open
- Upper shutter grille LIN line short to ground
- Upper shutter grille LIN line short to power
DTC: P05B2
- Lower shutter grille LIN line open
- Lower shutter grille LIN line short to ground
- Lower shutter grille LIN line short to power
Common
- PCM internal circuit failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the PGM-FI display comes on and 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 PGM-FI display is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The PGM-FI display, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.