CRUISE CONTROL SYSTEM Cruise Control Switch Circuit

DESCRIPTION

The cruise control main switch is used to turn the cruise control system on and off, as well as operate 7 functions: SET, - (COAST), TAP-DOWN, RES (RESUME), + (ACCEL), TAP-UP and CANCEL. The SET, TAP-DOWN and - (COAST) functions, and the RES (RESUME), TAP-UP and + (ACCEL) functions are operated with the same switch. The cruise control main switch is an automatic return type switch which turns on only while operating it in the direction of each arrow and turns off after releasing it. The internal contact points of the cruise control main switch turn on with switch operation. Then the ECM reads the voltage value that has been changed by the switch operation to control the SET, - (COAST), RES (RESUME), + (ACCEL), and CANCEL functions.

WIRING DIAGRAM

B00291ZE01

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.

for Type A: Click here

for Type B: Click here

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

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


      Powertrain > Cruise Control > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Main SW M-CPU Cruise control main switch signal (Main CPU) ON or OFF

      ON: Cruise control main switch on

      OFF: Cruise control main switch off

      		 -
      Cancel Switch CANCEL switch signal ON or OFF

      ON: CANCEL switch on

      OFF: CANCEL switch off

      		 -
      SET/COAST Switch -SET switch signal ON or OFF

      ON: -SET switch on

      OFF: -SET switch off

      		 -
      RES/ACC Switch +RES switch signal ON or OFF

      ON: +RES switch on

      OFF: +RES switch off

      		 -

      Powertrain > Cruise Control > Data List
      Tester Display
      Main SW M-CPU
      Cancel Switch
      SET/COAST Switch
      RES/ACC Switch
      OK
      When the cruise control main 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 MAIN 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 MAIN SWITCH Click here

    OK

  3. CHECK CRUISE CONTROL MAIN SWITCH


    1. B0027OAC07
      *a

      Front view of wire harness connector

      (to Spiral with Sensor Cable Sub-assembly (w/ Vehicle Stability Control System))

      (to Spiral Cable Sub-assembly (w/o Vehicle Stability Control System))
      *b

      Front view of wire harness connector

      (to Cruise Control Main Switch)

      Disconnect the spiral with sensor cable sub-assembly*1 or spiral cable sub-assembly*2 connector.


      • *1: w/ Vehicle Stability Control System

      • *2: w/o Vehicle Stability Control System

    2. Disconnect the cruise control main switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z4-3 (CCS) - A-3 (CCS) Always Below 1 Ω
      z4-4 (ECC) - A-1 (ECC) Always Below 1 Ω
      z4-3 (CCS) or A-3 (CCS) - Body ground Always 10 kΩ or higher
      z4-4 (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 WITH SENSOR CABLE SUB-ASSEMBLY OR SPIRAL CABLE SUB-ASSEMBLY


    1. Remove the spiral with sensor cable sub-assembly*1 or spiral cable sub-assembly*2.


      • *1: w/ Vehicle Stability Control System

      • *2: w/o Vehicle Stability Control System

      Click here

    2. Inspect the spiral with sensor cable sub-assembly*1 or spiral cable sub-assembly*2.


      • *1: w/ Vehicle Stability Control System

      • *2: w/o Vehicle Stability Control System

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY OR SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

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


    1. for 2TR-FE


      1. Disconnect the G4 spiral with sensor cable sub-assembly*1 or spiral cable sub-assembly*2 connector.


        • *1: w/ Vehicle Stability Control System

        • *2: w/o Vehicle Stability Control System

      2. Disconnect the G45 ECM connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        G4-1 (CCS) - G45-22 (CCS) Always Below 1 Ω
        G4-2 (ECC) - G45-21 (ECCS) Always Below 1 Ω
        G4-1 (CCS) or G45-22 (CCS) - Body ground Always 10 kΩ or higher

    2. for 1KD-FTV


      1. Disconnect the G4 spiral with sensor cable sub-assembly*1 or spiral cable sub-assembly*2 connector.


        • *1: w/ Vehicle Stability Control System

        • *2: w/o Vehicle Stability Control System

      2. Disconnect the G84 ECM connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        G4-1 (CCS) - G84-21 (CCS) Always Below 1 Ω
        G4-2 (ECC) - Body ground Always Below 1 Ω
        G4-1 (CCS) or G84-21 (CCS) - Body ground Always 10 kΩ or higher

    3. for 1GD-FTV, 2GD-FTV


      1. Disconnect the G4 spiral with sensor cable sub-assembly*1 or spiral cable sub-assembly*2 connector.


        • *1: w/ Vehicle Stability Control System

        • *2: w/o Vehicle Stability Control System

      2. Disconnect the G86 ECM connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        G4-1 (CCS) - G86-26 (CCS) Always Below 1 Ω
        G4-2 (ECC) - Body ground Always Below 1 Ω
        G4-1 (CCS) or G86-26 (CCS) - Body ground Always 10 kΩ or higher

    4. for 1GR-FE


      1. Disconnect the G4 spiral with sensor cable sub-assembly connector.

      2. Disconnect the G88 ECM connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        G4-1 (CCS) - G88-1 (CCS) Always Below 1 Ω
        G4-2 (ECC) - Body ground Always Below 1 Ω
        G4-1 (CCS) or G88-1 (CCS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM for 1GR-FE: Click here
    REPLACE ECM for 2TR-FE: Click here
    REPLACE ECM for 1GD-FTV: Click here
    REPLACE ECM for 2GD-FTV: Click here
    REPLACE ECM for 1KD-FTV: Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR