ACTIVE REAR WING SYSTEM Only Automatic Operation of Active Rear Wing does not Operate

DESCRIPTION

The spoiler control ECU assembly receives vehicle speed signals from the skid control ECU (brake actuator assembly) via CAN communication. When only automatic operation of the active rear wing does not operate, the vehicle speed indicated by the vehicle speed signal may not match the actual vehicle speed.

CAUTION / NOTICE / HINT

Note


  • The specified vehicle speed at which automatic operation raises the active rear wing differs depending on the selected driving mode. When any driving mode other than ECO mode is selected, the active rear wing will rise at approximately 80 km/h (50 mph), and when ECO mode is selected, it will rise at approximately 130 km/h (81 mph).

  • When a manual operation is performed, automatic operation will be temporarily prohibited until specified conditions are met.

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  • The active rear wing system uses the CAN communication system. First, confirm that there are no malfunctions in the CAN communication system. Refer to How to Proceed with Troubleshooting.

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PROCEDURE


  1. CHECK FOR DTC


    1. Check for DTCs.

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      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

  2. READ VALUE USING GTS (VEHICLE SPEED)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTSs on.

    4. Enter the following menus: Body Electrical / Active Rear Wing / Data List.

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


      Chassis > ABS/VSC/TRAC > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Vehicle Speed Vehicle speed 0 to 326.4 km/h Actual vehicle speed displayed (km/h) -

      Chassis > ABS/VSC/TRAC > Data List
      Tester Display
      Vehicle Speed
      OK
      The vehicle speed displayed on the GTSs is almost the same as the actual vehicle speed.
      Result
      Result
      OK
      NG

    OK

    REPLACE SPOILER CONTROL ECU ASSEMBLY Click here

    NG

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here