CRUISE CONTROL SYSTEM(for 1ND-TV with Driving support ECU) Cruise Control Switch Circuit

DTC Code DTC Name
Cruise Control Switch Circuit

DESCRIPTION

The cruise control 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 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 switch turn on with switch operation. Then the ECM reads the voltage value that has been changed by the switch operation to control SET, - (COAST), RES (RESUME), + (ACCEL), and CANCEL.

WIRING DIAGRAM

E296459E01

PROCEDURE

  1. READ VALUE ON GTS

    1. E107091C01

      *a

      ON-OFF

      *b

      -/SET

      *c

      +/RES

      *d

      CANCEL

      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. Check the Data List to confirm proper functioning of the cruise control switch.

      Powertrain > Cruise Control > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Cruise Control Main Switch

      Cruise control switch signal

      OFF or ON

      ON: Cruise control switch (ON-OFF button) pushed

      OFF: Cruise control switch (ON-OFF button) released

      -

      RES/ACC Switch

      +/RES switch signal

      OFF or ON

      ON: +/RES switch on

      OFF: +/RES switch off

      -

      SET/COAST Switch

      -/SET switch signal

      OFF or ON

      ON: -/SET switch on

      OFF: -/SET switch off

      -

      Cruise Cancel Request

      Status of the Cruise Cancel Request

      OFF or ON

      OFF: Cancel switch off

      ON: Cancel switch on

      -

      Powertrain > Cruise Control > Data List

      Tester Display

      Cruise Control Main Switch

      RES/ACC Switch

      SET/COAST Switch

      Cruise Cancel Request

      OK

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

    6. Turn the ignition switch off.

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

      E265511C09

      *1

      Cruise Control Switch (ON-OFF button)

      -

      -

      *a

      Component without harness connected

      (Cruise Control Switch)

      *b

      ON-OFF

      *c

      +/RES

      *d

      -/SET

      *e

      CANCEL

      -

      -

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      1 - 3

      Cruise control switch (ON-OFF button) released

      1 MΩ or higher

      Cruise control switch (ON-OFF button) pushed

      Below 2.5 Ω

      +/RES switch ON

      235 to 245 Ω

      -/SET switch ON

      617 to 643 Ω

      CANCEL switch ON

      1509 to 1571 Ω

    3. Install the cruise control switch.

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE CRUISE CONTROL SWITCH

    Click here

    OK

  3. CHECK CRUISE CONTROL SWITCH WIRE

    1. E232246C04

      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

      *b

      Front view of wire harness connector

      (to Cruise Control Switch)

      Remove the cruise control switch wire.

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

      Standard Resistance (Check for Open)

      Tester Connection

      Specified Condition

      Cruise control switch side connector terminal 3 - z4-3

      Below 1 Ω

      Cruise control switch side connector terminal 1 - z4-4

      Below 1 Ω

    3. Install the cruise control switch wire.

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE CRUISE CONTROL SWITCH WIRE

    OK

  4. INSPECT SPIRAL CABLE SUB-ASSEMBLY

    1. Inspect the spiral cable sub-assembly.

      w/ VSC:Click hereClick hereClick here

      w/o VSC:Click hereClick here

    Result

    Result

    Proceed to

    OK

    A

    NG (w/ VSC)

    B

    NG (w/o VSC)

    C
    B

    REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

    Click hereClick here

    C

    REPLACE SPIRAL CABLE SUB-ASSEMBLY

    Click hereClick here

    A

  5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - DRIVING SUPPORT ECU ASSEMBLY)

    1. Disconnect the E128 driving support ECU assembly connector.

    2. Disconnect the E6 spiral cable sub-assembly connector.

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

      Standard Resistance (Check for Open)

      Tester Connection

      Condition

      Specified Condition

      E128-23 (CCS) - E6-1 (CCS)

      Always

      Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection

      Condition

      Specified Condition

      E128-23 (CCS) or E6-1 (CCS) - Body ground

      Always

      10 kΩ or higher

    4. Reconnect the E6 spiral cable sub-assembly connector.

    5. Reconnect the E128 driving support ECU assembly connector.

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - DRIVING SUPPORT ECU ASSEMBLY)

    OK

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

    1. Disconnect the E6 spiral cable sub-assembly connector.

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

      Standard Resistance (Check for Open)

      Tester Connection

      Condition

      Specified Condition

      E6-2 (ECC) - Body ground

      Always

      Below 1 Ω

    3. Reconnect the E6 spiral cable sub-assembly connector.

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE DRIVING SUPPORT ECU ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)