CRUISE CONTROL SYSTEM Cruise Control Switch Circuit

DTC Code DTC Name
Cruise Control Switch Circuit

DESCRIPTION

This circuit sends a signal to the ECM depending on the cruise control main switch condition. The battery supplies positive (+) battery voltage to the circuit control main switch. Then terminal CCS of the ECM receives the voltage according to the switch condition.

WIRING DIAGRAM

C350493E03
E274256E04

PROCEDURE

  1. READ VALUE USING GTS

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

      Click here

      1. for 2AD-FTV, 2AD-FHV:

        Powertrain > Cruise Control > Data List

        Tester Display

        Measurement Item

        Range

        Normal Condition

        Diagnostic Note

        CCS Main SW M-CPU

        Cruise control switch signal (Main CPU)

        ON or OFF

        ON: Cruise control switch on

        OFF: Cruise control 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

        CCS Main SW M-CPU

        Cancel Switch

        SET/COAST Switch

        RES/ACC Switch

        OK

        When the cruise control switch is operated, the display changes as shown above.

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:

        Powertrain > Cruise Control > 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

        -

        Powertrain > Cruise Control > Data List

        Tester Display

        Cancel Switch

        -SET Switch

        +RES Switch

        Cruise Ready Main-CPU

        Cruise Ready Sub-CPU

        OK

        When the cruise control switch is operated, the display changes as shown above.

      3. for 2WW:

        Powertrain > Cruise Control > Data List

        Tester Display

        Measurement Item

        Range

        Normal Condition

        Diagnostic Note

        CANCEL SW

        CANCEL switch signal

        ON or OFF

        ON: CANCEL switch on

        OFF: CANCEL switch off

        -

        -SET SW

        -SET switch signal

        ON or OFF

        ON: -SET switch on

        OFF: -SET switch off

        -

        +RES SW

        +RES switch signal

        ON or OFF

        ON: +RES switch on

        OFF: +RES switch off

        -

        Cruise Control Switch

        Cruise control switch signal

        ON or OFF

        ON: Cruise control switch (ON/OFF) pushed

        OFF: Cruise control switch (ON/OFF) released

        -

        Powertrain > Cruise Control > Data List

        Tester Display

        CANCEL SW

        -SET SW

        +RES SW

        Cruise Control Switch

        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 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 CRUISE CONTROL SWITCH WIRE

    1. Disconnect the z4 spiral cable sub-assembly connector.

    2. Disconnect the A cruise control switch wire connector.

    3. E178683C12

      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

      *b

      Front view of wire harness connector

      (to Cruise Control Switch)

      except ASA42L-ANTGKA or ASA44L-ANTGKA:

      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
    4. C346752C04

      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

      *b

      Front view of wire harness connector

      (to Cruise Control Main Switch)

      for ASA42L-ANTGKA or ASA44L-ANTGKA:

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      z4-3 (CCS) - A-4 (CCS)

      Always

      Below 1 Ω

      z4-4 (ECC) - A-2 (ECC)

      Always

      Below 1 Ω

      z4-3 (CCS) or A-4 (CCS) - Body ground

      Always

      10 kΩ or higher

      z4-4 (ECC) or A-2 (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.

      for Single Type:Click here

      for Dual Type:Click here

    2. Inspect the spiral cable sub-assembly.

      for Single Type:Click here

      for Dual Type:Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY

    for Single Type:Click here

    for Dual Type:Click here

    OK

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

    1. for 2AD-FHV, 2AD-FTV:

      1. Disconnect the G8 spiral cable sub-assembly connector.

      2. Disconnect the A61 ECM connector.

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        G8-1 (CCS) - A61-23 (CCS)

        Always

        Below 1 Ω

        G8-2 (ECC) - Body ground

        Always

        Below 1 Ω

        G8-1 (CCS) or A61-23 (CCS) - Body ground

        Always

        10 kΩ or higher

    2. for 2AR-FE:

      1. Disconnect the G8 spiral cable sub-assembly connector.

      2. Disconnect the A62 ECM connector.

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        G8-1 (CCS) - A62-40 (CCS)

        Always

        Below 1 Ω

        G8-2 (ECC) - Body ground

        Always

        Below 1 Ω

        G8-1 (CCS) or A62-40 (CCS) - Body ground

        Always

        10 kΩ or higher

    3. for 3ZR-FE (for K111, K111F):

      1. Disconnect the G8 spiral cable sub-assembly connector.

      2. Disconnect the A62 ECM connector.

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        G8-1 (CCS) - A62-60 (CCS)

        Always

        Below 1 Ω

        G8-2 (ECC) - Body ground

        Always

        Below 1 Ω

        G8-1 (CCS) or A62-60 (CCS) - Body ground

        Always

        10 kΩ or higher

    4. for 3ZR-FAE, 3ZR-FE (except K111, K111F):

      1. Disconnect the G8 spiral cable sub-assembly connector.

      2. Disconnect the A62 ECM connector.

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        G8-1 (CCS) - A62-36 (CCS)

        Always

        Below 1 Ω

        G8-2 (ECC) - A62-35 (ECCS)

        Always

        Below 1 Ω

        G8-1 (CCS) or A62-36 (CCS) - Body ground

        Always

        10 kΩ or higher

    5. for 2WW:

      1. Disconnect the G8 spiral cable sub-assembly connector.

      2. Disconnect the A62 ECM connector.

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        G8-1 (CCS) - A62-41 (CCS)

        Always

        Below 1 Ω

        G8-2 (ECC) - A62-42 (ECCS)

        Always

        Below 1 Ω

        G8-1 (CCS) or A62-41 (CCS) - Body ground

        Always

        10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ECM

    for 2AD-FHV:Click here

    for 2AD-FTV:Click here

    for 2AR-FE:Click here

    for 3ZR-FAE:Click here

    for 3ZR-FE:Click here

    for 2WW:Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR