ACTIVE REAR WING SYSTEM Both Manual and Automatic Operation of Active Rear Wing does not Operate

DESCRIPTION

When the active rear wing cannot be operated by either manual or automatic operation, there may be a malfunction in the spoiler control ECU assembly power supply, ground circuit, spoiler control ECU assembly or rear spoiler motor assembly may be malfunctioning.

WIRING DIAGRAM

B000QB7E03

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE


  1. READ VALUE 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: Customize Setting / Others.

    5. Check that the active rear wing system customize setting "Active Rear Wing Control" is set to "Permission".


      Others
      Tester Display Description Default Setting ECU
      Active Rear Wing Control Active rear wing system permission/prohibition setting Prohibition 01:Permission,10:Prohibition Spoiler control ECU assembly
      OK
      The active rear wing system customize setting "Active Rear Wing Control" is set to "Permission".
      Result
      Proceed to
      OK
      NG

    NG

    PERFORM CUSTOMIZE FUNCTION (Change setting to "Permission") Click here

    OK

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Active Rear Wing > Trouble Codes
      OK
      DTCs are not output.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    OK

  3. READ VALUE 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 / Active Rear Wing / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Active Rear Wing > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Vehicle Speed Information Vehicle speed signal reception condition OK or NG

      OK: Vehicle speed signal is valid

      NG: Vehicle speed signal is invalid

      		 -

      Body Electrical > Active Rear Wing > Data List
      Tester Display
      Vehicle Speed Information
      Result
      Result Proceed to
      OK is displayed on the GTS A
      NG is displayed on the GTS B

    B

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM Click here

    A

  4. CHECK HARNESS AND CONNECTOR (SPOILER CONTROL ECU ASSEMBLY BODY GROUND)


    1. Disconnect the X79 spoiler control ECU assembly connector.

    2. B000S61C05
      *a

      Front view of wire harness connector

      (to Spoiler Control ECU Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X79-1 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (SPOILER CONTROL ECU ASSEMBLY POWER SOURCE)


    1. B000S61C06
      *a

      Front view of wire harness connector

      (to Spoiler Control ECU Assembly)

      Disconnect the X79 spoiler control ECU assembly connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      X79-18 (ECUB) - X79-1 (GND) Power switch off 11 to 14 V
      X79-19 (B) - X79-1 (GND) Power switch off 11 to 14 V
      X79-16 (IG) - X79-1 (GND) Power switch off Below 1 V
      X79-16 (IG) - X79-1 (GND) Power switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT REAR SPOILER MOTOR ASSEMBLY


    1. Remove the rear spoiler motor assembly.

      Click here

    2. Inspect the rear spoiler motor assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR SPOILER MOTOR ASSEMBLY Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (SPOILER CONTROL ECU ASSEMBLY - REAR SPOILER MOTOR ASSEMBLY)


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X79-6 (RSM+) - d2-1 (U) Always Below 1 Ω
      X79-6 (RSM+) or d2-1 (U) - Body ground Always 10 kΩ or higher
      X79-7 (RSM-) - d2-5 (D) Always Below 1 Ω
      X79-7 (RSM-) or d2-5 (D) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SPOILER CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR