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 switch condition. The battery supplies positive (+) battery voltage to the circuit control switch. Then terminal CCS of the ECM receives the voltage according to the switch condition.

WIRING DIAGRAM

E270490E01

PROCEDURE

  1. READ VALUE USING GTS

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

      Click here

      Powertrain > Cruise Control > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Main SW M-CPU

      Cruise control switch signal (Main CPU)

      ON or OFF

      ON: Cruise control switch is on

      OFF: Cruise control switch is off

      -

      Cancel Switch

      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 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 hereClick 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. E178683C04

      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

      *b

      Front view of wire harness connector

      (to Cruise Control Switch)

      Disconnect the z4 spiral cable sub-assembly connector.

    2. Disconnect the A 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

      z4-3 (CCS) - A-3

      Always

      Below 1 Ω

      z4-4 (ECC) - A-1

      Always

      Below 1 Ω

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

      Always

      10 kΩ or higher

      z4-4 (ECC) or A-1 - 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.

      w/o Occupant Classification System:Click here

      w/ Occupant Classification System:Click here

    2. Inspect the spiral cable sub-assembly.

      w/o Occupant Classification System:Click here

      w/ Occupant Classification System:Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY

    w/o Occupant Classification System:Click here

    w/ Occupant Classification System:Click here

    OK

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

    1. for 1AD-FTV, 2AD-FHV, 2AD-CCo, 2AD-DPF

      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-FAE, 3ZR-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) - A62-60 (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

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ECM

    for 1AD-FTV:Click here

    for 2AD-FHV:Click here

    for 2AD-CCo, 2AD-DPF:Click here

    for 2AR-FE:Click here

    for 3ZR-FAE:Click hereClick here

    for 3ZR-FE:Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR