DYNAMIC RADAR CRUISE CONTROL SYSTEM Cruise Main Indicator Light Circuit

DESCRIPTION

When the dynamic radar cruise control system is turned on using the cruise control main switch (ON/OFF button), the cruise control indicator (vehicle-to-vehicle distance control mode) illuminates. The driving support ECU assembly uses this and other indicators to indicate the control condition (presence or absence of a preceding vehicle, vehicle-to-vehicle distance, and set vehicle speed) and fail-safe state via CAN communication.

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    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. Perform the Active Test according to the display on the GTS.


      Body Electrical > Combination Meter > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Meter Display 1 Multi-information display OFF or All Test possible at vehicle speed of 0 km/h (0 mph)

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

  2. READ VALUE USING GTS


    1. Enter the following menus: Powertrain / Radar Cruise / Data List.

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


      Powertrain > Radar Cruise > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Cruise Control Main Switch Cruise control main switch (ON/OFF button) status ON or OFF

      ON: Cruise control main switch (ON/OFF button) pushed

      OFF: Cruise control main switch (ON/OFF button) not pushed

      		 -

      Powertrain > Radar Cruise > Data List
      Tester Display
      Cruise Control Main Switch
      Result
      Result Proceed to
      The cruise control indicator illuminates and turns off according to the operation of the cruise control main switch (ON/OFF button) A
      The cruise control indicator does not illuminate but the Data List item changes according to the operation of the cruise control main switch (ON/OFF button) B
      The cruise control indicator does not illuminate and the Data List item does not change according to the operation of the cruise control main switch (ON/OFF button) C

    A

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

    B

    REPLACE COMBINATION METER ASSEMBLY Click here

    C

    REPLACE DRIVING SUPPORT ECU ASSEMBLY Click here