DYNAMIC RADAR CRUISE CONTROL SYSTEM Cruise Control Switch Circuit

DESCRIPTION


WIRING DIAGRAM

B001HVVE01

CAUTION / NOTICE / HINT

Note


  • Before replacing the ECM, 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 ignition switch to ON.

    3. Check the Data List for proper functioning of the cruise control switch.

      Click here

      Powertrain > Radar Cruise 1 > 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 status ON or OFF

      ON: -SET switch on

      OFF: -SET switch off
      +RES Switch +RES switch status ON or OFF

      ON: +RES switch on

      OFF: +RES switch off
      Cruise Ready Main-CPU Cruise control system standby condition ON or OFF Each time cruise control switch is pushed, ON or OFF changes
      Cruise Ready Sub-CPU Cruise control system standby condition ON or OFF Each time cruise control switch is pushed, ON or OFF changes
      OK
      When the cruise control switch is operated, the display changes as shown above.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. INSPECT CRUISE CONTROL SWITCH


    1. Remove the cruise control switch.

      Click here

    2. Inspect the cruise control switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CRUISE CONTROL SWITCH Click here

    OK

  3. CHECK CRUISE CONTROL SWITCH WIRE


    1. Disconnect the z7 spiral cable sub-assembly connector.

    2. Disconnect the A cruise control switch wire connector.

    3. B001GTXC37
      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)
      *b

      Front view of wire harness connector

      (to Cruise Control Switch)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z7-3 (CCS) - A-3 (CCS) Always Below 1 Ω
      z7-4 (ECC) - A-1 (ECC) Always Below 1 Ω
      z7-3 (CCS) or A-3 (CCS) - Body ground Always 10 kΩ or higher
      z7-4 (ECC) or A-1 (ECC) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CRUISE CONTROL SWITCH WIRE

    OK

  4. 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

  5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)


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

    2. Disconnect the G56*1, G57*2, G185*3 or G181*4 ECM connector.


      • *1: for 1GR-FE

      • *2: for 1KD-FTV

      • *3: for 1GD-FTV

      • *4: for 2TR-FE

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

      Standard Resistance (for 1GR-FE)
      Tester Connection Condition Specified Condition
      G208-1 (CCS) - G56-1 (CCS) Always Below 1 Ω
      G208-2 (ECC) - Body ground Always Below 1 Ω
      G208-1 (CCS) or G56-1 (CCS) - Body ground Always 10 kΩ or higher
      Standard Resistance (for 1KD-FTV)
      Tester Connection Condition Specified Condition
      G208-1 (CCS) - G57-14 (CCS) Always Below 1 Ω
      G208-2 (ECC) - Body ground Always Below 1 Ω
      G208-1 (CCS) or G56-36 (CCS) - Body ground Always 10 kΩ or higher
      Standard Resistance (for 1GD-FTV)
      Tester Connection Condition Specified Condition
      G208-1 (CCS) - G185-26 (CCS) Always Below 1 Ω
      G208-2 (ECC) - Body ground Always Below 1 Ω
      G208-1 (CCS) or G185-26 (CCS) - Body ground Always 10 kΩ or higher
      Standard Resistance (for 2TR-FE)
      Tester Connection Condition Specified Condition
      G208-1 (CCS) - G181-22 (CCS) Always Below 1 Ω
      G208-2 (ECC) - G181-21 (ECCS) Always Below 1 Ω
      G208-1 (CCS) or G181-22 (CCS) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (for 1GR-FE, 1KD-FTV, 1GD-FTV) A
      OK (for 2TR-FE) B
      NG C

    A

    REPLACE ECM for 1GR-FE: Click here
    REPLACE ECM for 1KD-FTV: Click here
    REPLACE ECM for 1GD-FTV: Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

  6. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)


    1. Disconnect the C153 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C153-3 (E1) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR