LKA/LDA SYSTEM Indicator Circuit

DESCRIPTION

The forward recognition camera sends indicator illumination request signals to the combination meter assembly via CAN communication.

CAUTION / NOTICE / HINT

Note

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

PROCEDURE


  1. READ VALUE USING GTS (CAN BUS CHECK)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: System Select / Can Bus Check.


      CAN Bus Check
      Result
      Result Proceed to
      All of the ECUs and sensors that are currently connected to the CAN communication system are displayed A
      None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed B

    B

    GO TO CAN COMMUNICATION SYSTEM for LHD: Click here for RHD: Click here

    A

  2. CHECK FOR DTCs (HEALTH CHECK)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: System Select / Health Check.

    5. Check DTCs.

    6. Turn the engine switch off.

      Result
      Result Proceed to
      No DTCs are output. A
      DTCs are output. B

    B

    GO TO DTC CHART

    A

  3. PERFORM ACTIVE TEST USING GTS (METER DISPLAY 1)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Active Test.

    5. According to the display on the GTS, perform the Active Test.


      Body Electrical > Combination Meter > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Meter Display 1 Multi-information display OFF or All -

      Body Electrical > Combination Meter > Active Test
      Tester Display
      Meter Display 1

    6. Turn the engine switch off.

      Result
      Result Proceed to
      The multi-information display in the combination meter assembly turns on or off according to the operation of the Active Test. A
      The multi-information display in the combination meter assembly does not turn on or off according to the operation of the Active Test. B

    B

    GO TO METER / GAUGE SYSTEM Click here

    A

  4. READ VALUE USING GTS (LDA CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / LKA/LDA / Data List.

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


      Chassis > LKA/LDA > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      LDA Control Control status of LKA/LDA system Prohibit or Permit

      Prohibit: Control prohibited

      Permit: Control permitted

      		 -

      Chassis > LKA/LDA > Data List
      Tester Display
      LDA Control
      Result
      Result Proceed to
      The LKA/LDA indicator illuminates and turns on according to the operation of the LKA/LDA main switch A
      The LKA/LDA indicator does not illuminate but the Data List item LDA Control changes according to the operation of the LKA/LDA main switch B
      The LKA/LDA indicator does not illuminate and the Data List item LDA Control does not change according to the operation of the LKA/LDA main switch C

    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    B

    REPLACE COMBINATION METER ASSEMBLY Click here

    C

    REPLACE FORWARD RECOGNITION CAMERA Click here