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), the cruise control indicator (vehicle-to-vehicle distance control mode) illuminates. The ECM 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 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.

  • Before replacing the ECM, refer to Service Bulletin.

PROCEDURE


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

      Click here


      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 with engine switch on (IG), vehicle stopped

      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 1 / Data List.

    2. for 8AR-FTS:

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

      Click here


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

      ON: Cruise control main switch (ON/OFF) on

      OFF: Cruise control main switch (ON/OFF) off

      		 -

      Powertrain > Cruise Control > Data List
      Tester Display
      Cruise Main Switch Operation Condition

    3. for 3ZR-FAE:

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

      Click here


      Powertrain > Radar Cruise1 > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Cruise Ready Main-CPU Cruise control system standby condition ON or OFF Each time cruise control switch (ON/OFF button) is pushed, ON or OFF changes -
      Cruise Ready Sub-CPU Cruise control system standby condition ON or OFF Each time cruise control switch (ON/OFF button) is pushed, ON or OFF changes -
      Cruise Indicator Cruise control indicator status ON or OFF

      ON: Cruise control indicator illuminates

      OFF: Cruise control indicator turns off

      		 -

      Powertrain > Radar Cruise1 > Data List
      Tester Display
      Cruise Ready Main-CPU
      Cruise Ready Sub-CPU
      Cruise Indicator
      Result
      Result Proceed to
      The cruise control indicator illuminates and turns off according to the operation of the cruise control main switch (ON/OFF). A
      The cruise control indicator does not illuminate but the Data List item Cruise Indicator changes according to the operation of the cruise control main switch (ON/OFF). B
      The cruise control indicator does not illuminate and the Data List item Cruise Indicator does not change according to the operation of the cruise control main switch (ON/OFF). C

    A

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

    B

    REPLACE COMBINATION METER ASSEMBLY Click here

    C

    REPLACE ECM for 8AR-FTS: Click here
    REPLACE ECM for 3ZR-FAE: Click here