DYNAMIC RADAR CRUISE CONTROL SYSTEM Distance Control Switch Circuit

DESCRIPTION

The vehicle-to-vehicle distance control switch is used to set the distance for vehicle-to-vehicle distance control mode. The vehicle-to-vehicle distance control switch is installed in the steering pad switch assembly. The vehicle-to-vehicle distance set value can be changed by operating the vehicle-to-vehicle distance control switch (steering pad switch assembly) while the dynamic radar cruise control system is controlling vehicle speed in vehicle-to-vehicle distance control mode.

WIRING DIAGRAM

B001F8FE02

CAUTION / NOTICE / HINT

Note


  • The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

    Click here

  • 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. READ VALUE USING GTS (DISTANCE CONTROL SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Check the Data List to confirm function of the distance control switch.

      Click here

      Powertrain > Radar Cruise2 > Data List

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Distance Control Switch Distance control switch signal ON or OFF

      ON: Vehicle-to-vehicle distance control switch on

      OFF: Vehicle-to-vehicle distance control switch off

      		 -
      OK
      The display changes in accordance with switch operation.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Remove the steering pad switch assembly.

      Click here

    2. Inspect the steering pad switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

  3. INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. Remove the spiral cable sub-assembly.

      Click here

    2. Inspect the spiral cable sub-assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - DRIVING SUPPORT ECU ASSEMBLY AND ECM)


    1. Disconnect the G208 spiral cable sub-assembly connector.

    2. Disconnect the G224 driving support ECU assembly connector.

    3. Disconnect the G181*1 ECM connector.


      • for 2TR-FE

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

      Standard Resistance (for 2TR-FE)
      Tester Connection Condition Specified Condition
      G208-12 (DIST) - G224-23 (SPSW) Always Below 1 Ω
      G208-2 (ECC) - G181-21 (ECCS) Always Below 1 Ω
      G208-12 (DIST) or G224-23 (SPSW) - Body ground Always 10 kΩ or higher
      Standard Resistance (for 1GR-FE, 1KD-FTV and 1GD-FTV)
      Tester Connection Condition Specified Condition
      G208-12 (DIST) - G224-23 (SPSW) Always Below 1 Ω
      G208-2 (ECC) - Body ground Always Below 1 Ω
      G208-12 (DIST) or G224-23 (SPSW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE DRIVING SUPPORT ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR