DYNAMIC RADAR CRUISE CONTROL SYSTEM Cruise Control Switch Circuit

DESCRIPTION


WIRING DIAGRAM

B002HKIE01

CAUTION / NOTICE / HINT

Note


  • Before replacing the hybrid vehicle control ECU, refer to Service Bulletin.

  • 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

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. 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
      Cancel Switch CANCEL switch status ON or OFF

      ON: CANCEL switch on

      OFF: CANCEL switch off

      		 -
      -SET Switch -SET switch signal ON or OFF

      ON: -SET switch on

      OFF: -SET switch off

      		 -
      +RES Switch +RES switch signal ON or OFF

      ON: +RES switch on

      OFF: +RES switch off

      		 -
      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 > Radar Cruise1 > Data List
      Tester Display
      Cancel Switch
      -SET Switch
      +RES Switch
      Cruise Main Switch Operation Condition
      OK
      The Data List items shown in the table change according to the operation of the cruise control main switch.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. INSPECT CRUISE CONTROL MAIN SWITCH


    1. Remove the cruise control main switch.

      Click here

    2. Inspect the cruise control main switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CRUISE CONTROL MAIN SWITCH Click here

    OK

  3. CHECK STEERING PAD SWITCH ASSEMBLY


    1. Disconnect the z3 spiral with sensor cable sub-assembly connector.

    2. Disconnect the z14 cruise control switch wire connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z3-12 (CCS) - z14-3 AlwAys Below 1 Ω
      z3-7 (ECC) - z14-1 AlwAys Below 1 Ω
      z3-12 (CCS) or z14-3 - Body ground AlwAys 10 kΩ or higher
      z3-7 (ECC) or z14-1 - Body ground AlwAys 10 kΩ or higher

    4. Connect the z14 cruise control switch wire connector.

    5. Connect the z3 spiral with sensor cable sub-assembly connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

  4. INSPECT SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY


    1. Remove the spiral with sensor cable sub-assembly.

      Click here

    2. Inspect the spiral with sensor cable sub-assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY - HYBRID VEHICLE CONTROL ECU AND BODY GROUND)


    1. Disconnect the I4 spiral with sensor cable sub-assembly connector.

    2. Disconnect the I115 hybrid vehicle control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I4-7 (CCS) - I115-28 (CCS) Always Below 1 Ω
      I4-2 (ECC) - Body ground Always Below 1 Ω
      I4-7 (CCS) or I115-28 (CCS) - Body ground Always 10 kΩ or higher

    4. Connect the I115 hybrid vehicle control ECU connector.

    5. Connect the I4 spiral with sensor cable sub-assembly connector.

      Result
      Result Proceed to
      OK A
      NG B

    A

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    B

    REPAIR OR REPLACE HARNESS OR CONNECTOR