SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P05A074

DTC Code DTC Name
P05A074 Active Grille Air Shutter "A" Actuator Slipping

DESCRIPTION

Refer to DTC P059F73.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P05A074 Active Grille Air Shutter "A" Actuator Slipping

Either of the following conditions is met and the ECM receives a malfunction signal 17 times* (2 trip detection logic):


  • After a grille shutter opening operation (grille shutter locking not detected), the grille shutter is estimated to be fully opened but the end shaft switch (swing grille actuator assembly) is not in the open position.

  • After a grille shutter closing operation (grille shutter locking not detected), the grille shutter is estimated to be fully closed but the end shaft switch (built into the swing grille actuator assembly) is not in the closed position.

  • Radiator shutter sub-assembly

  • Swing grille actuator assembly

 Comes on DTC stored SAE Code: P05A0

Tech Tips

*: For every 65 ms that the ECM receives a grille shutter system malfunction signal from the grille shutter ECU (swing grille actuator assembly) the ECM determines it has received the signal 1 time. If the ECM determines the malfunction signal has been received 17 consecutive times (the signal is received for approximately 1 second continuously), it will store a DTC.

MONITOR DESCRIPTION

If the grille shutter ECU (swing grille actuator assembly) detects that the condition of the end shaft switch (radiator shutter sub assembly) and the estimated position of the grille shutter, based on the signal from the Hall ICs built into the swing grille actuator assembly, are different, it will output a malfunction signal to the ECM and the ECM will store a DTC.

MONITOR STRATEGY

Related DTCs P05A0: Active grille air shutter verify switch input
Required Sensors/Components (Main)

Swing grille actuator assembly

Radiator shutter sub-assembly
Required Sensors/Components (Related) -
Frequency of Operation Continuous
Duration 17 times
MIL Operation 2 driving cycles
Sequence of Operation None

TYPICAL ENABLING CONDITIONS

Case 1
Monitor runs whenever the following DTCs are not stored None
Auxiliary battery voltage 10.5 to 16 V
Either of the following conditions is met 1 or 2
1. Command to close active grille air shutter On
2. Command to open active grille air shutter On
Active grille air shutter motor speed sensor range check fail Not occurred
Shutter control timeout condition (*1) Not met
Active grille air shutter control circuit fail Not occurred
Lost communication with hybrid control module Not occurred
Active grille air shutter control module fail Not occurred
Motor lock condition (*2) Not met
Case 2
Monitor runs whenever the following DTCs are not stored None
Auxiliary battery voltage 10.5 to 16 V
Either of the following conditions is met 1 or 2
1. Command to close active grille air shutter On
2. Command to open active grille air shutter On
Either of the following conditions is met 1 or 2
1. Time after active grille air shutter close control is stopped 1 second or more
2. Time after active grille air shutter open control is stopped 1 second or more
Active grille air shutter motor speed sensor range check fail Not occurred
Shutter control timeout condition (*1) Not met
Active grille air shutter control circuit fail Not occurred
Lost communication with hybrid control module Not occurred
Active grille air shutter control module fail Not occurred
Motor lock condition (*2) Not met
*1: Shutter control timeout condition judgment -
Either of the following conditions is met 1 or 2
1. Time after active grille air shutter close control is operated 11 seconds or more
2. Time after active grille air shutter open control is operated 11 seconds or more
*2: Motor lock condition judgment -
Either of the following conditions is met 1 or 2
1. All of the following conditions are met -
Number of active grille air shutter motor speed sensor 1 signal pulse Less than 24 times
Pulse period of active grille air shutter motor speed sensor 1 signal 0.61 seconds or more
Pulse period of active grille air shutter motor speed sensor 2 signal 0.61 seconds or more
2. All of the following conditions are met -
Number of active grille air shutter motor speed sensor 1 signal pulse 24 times or more
Pulse period of active grille air shutter motor speed sensor 1 signal 0.25 seconds or more
Pulse period of active grille air shutter motor speed sensor 2 signal 0.25 seconds or more

TYPICAL MALFUNCTION THRESHOLDS

Either of the following conditions is met 1 or 2
1. All of the following conditions are met -
Active grille air shutter close control Operating
Shutter position estimated by active grille air shutter motor speed sensor pulse input Close position
One of the following conditions is met (a), (b) or (c)
(a). Both of the following conditions are met -
Shaft close position switch Off
Shaft open position switch Off
(b). Both of the following conditions are met -
Shaft close position switch Off
Shaft open position switch On
(c). Both of the following conditions are met -
Shaft close position switch On
Shaft open position switch On
2. All of the following conditions are met -
Active grille air shutter open control Operating
Shutter position estimated by active grille air shutter motor speed sensor pulse input Open position
One of the following conditions is met (a), (b) or (c)
(a). Both of the following conditions are met -
Shaft close position switch Off
Shaft open position switch Off
(b). Both of the following conditions are met -
Shaft close position switch On
Shaft open position switch Off
(c). Both of the following conditions are met -
Shaft close position switch On
Shaft open position switch On

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG).

  3. Turn the GTS on.

  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  5. Turn the power switch off and wait for at least 30 seconds.

  6. Turn the power switch on (IG).

  7. Turn the GTS on.

  8. Enter the following menus: Body Electrical / Grill Shutter / Active Test / Shutter Closing Operation Lock Detection / Data List / Shutter Operation Lock Detection Result for Active Test.

  9. According to the display on the GTS, perform the Active Test and read the value of Data List item Shutter Operation Lock Detection Result for Active Test.

    OK
    "Normal" is displayed.

  10. Enter the following menus: Body Electrical / Grill Shutter / Active Test / Shutter Opening Operation Lock Detection / Data List / Shutter Operation Lock Detection Result for Active Test.

  11. According to the display on the GTS, perform the Active Test and read the value of Data List item Shutter Operation Lock Detection Result for Active Test.

    OK
    "Normal" is displayed.

WIRING DIAGRAM

B004P65E01

CAUTION / NOTICE / HINT

Note

In order to ensure safety, before performing troubleshooting or removing the swing grille actuator assembly or radiator shutter sub-assembly, change the grille shutter control mode to maintenance mode.

Tech Tips

Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. PERFORM UTILITY USING GTS (GRILL SHUTTER CONTROL MODE SWITCHING)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Grill Shutter / Utility / Grill Shutter Control Mode Switching.


      Body Electrical > Grill Shutter > Utility
      Tester Display
      Grill Shutter Control Mode Switching

    5. According to the display on the GTS, change the grille shutter control mode from normal mode to maintenance mode.

      Result
      Proceed to
      NEXT

    NEXT

  2. PERFORM ACTIVE TEST USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Grill Shutter / Active Test / Shutter Closing Operation Lock Detection / Data List / Close Motor Lock and End Shaft SW.


      Body Electrical > Grill Shutter > Active Test
      Active Test Display
      Shutter Closing Operation Lock Detection
      Data List Display
      Close Motor Lock
      End Shaft SW

    5. According to the display on the GTS, perform the Active Test and read the Data List.

      Standard
      Active Test Item Data List Item
      Close Motor Lock End Shaft SW
      Shutter Closing Operation Lock Detection Detected Fully Closed Position

    6. Enter the following menus: Body Electrical / Grill Shutter / Active Test / Shutter Opening Operation Lock Detection / Data List / Open Motor Lock and End Shaft SW.


      Body Electrical > Grill Shutter > Active Test
      Active Test Display
      Shutter Opening Operation Lock Detection
      Data List Display
      Open Motor Lock
      End Shaft SW

    7. According to the display on the GTS, perform the Active Test and read the Data List.

      Standard
      Active Test Item Data List Item
      Open Motor Lock End Shaft SW
      Shutter Opening Operation Lock Detection Detected Fully Open Position
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SWING GRILLE ACTUATOR ASSEMBLY Click here Perform "Grill Shutter Control Mode Switching and Grill Shutter Initialization" after replacing the swing grille actuator assembly. Click here

    NG

  3. INSPECT SWING GRILLE ACTUATOR ASSEMBLY

    B004P1LC01
    *1 Swing Grille Actuator Assembly *2 Radiator Shutter Sub-assembly
    *a Area to be inspected - -

    1. Remove the radiator shutter sub-assembly.

      Tech Tips

      Click here

    2. Remove the swing grille actuator assembly.

      Tech Tips

      Click here

    3. Check the connecting parts of the swing grille actuator assembly and radiator shutter sub-assembly shown in the illustration for wear and damage.

      Result
      Result Proceed to
      Swing grille actuator assembly is worn or damaged A
      Radiator shutter sub-assembly is worn or damaged B
      Normal C

    A

    REPLACE SWING GRILLE ACTUATOR ASSEMBLY Click here Perform "Grill Shutter Control Mode Switching and Grill Shutter Initialization" after replacing the swing grille actuator assembly. Click here

    B

    REPLACE RADIATOR SHUTTER SUB-ASSEMBLY Click here Perform "Grill Shutter Control Mode Switching and Grill Shutter Initialization" after replacing the radiator shutter sub-assembly. Click here

    C

  4. INSPECT RADIATOR SHUTTER SUB-ASSEMBLY (END SHAFT SWITCH)

    B004Q97C01
    *1 Radiator Shutter Sub-assembly - -
    *a

    Front view of wire harness connector

    (to Swing Grille Actuator Assembly)

    		 *b

    Front view of wire harness connector

    (to Wire Harness)

    1. Remove the radiator shutter sub-assembly.

      Tech Tips

      Click here

    2. Remove the swing grille actuator assembly.

      Tech Tips

      Click here

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-2 (SEN1) - A36-1 (GND) Grille Shutter Fully Open Below 1 Ω
      A-2 (SEN1) - A36-1 (GND) Grille Shutter in any Position Other Than Fully Open 10 kΩ or higher
      A-4 (SEN2) - A36-1 (GND) Grille Shutter Fully Closed Below 1 Ω
      A-4 (SEN2) - A36-1 (GND) Grille Shutter in any Position Other Than Fully Closed 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SWING GRILLE ACTUATOR ASSEMBLY Click here Perform "Grill Shutter Control Mode Switching and Grill Shutter Initialization" after replacing the swing grille actuator assembly. Click here

    NG

    REPLACE RADIATOR SHUTTER SUB-ASSEMBLY Click here Perform "Grill Shutter Control Mode Switching and Grill Shutter Initialization" after replacing the radiator shutter sub-assembly. Click here