CRUISE CONTROL SYSTEM(except 1ND-TV, 8NR-FTS) 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

E270827E01

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

      Main SW M-CPU

      Cruise control switch signal (MainCPU)

      ON or OFF

      ON: Cruise control switch (ON-OFFbutton) pushed

      OFF: Cruise control switch (ON-OFFbutton) released

      -

      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 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.

      E265511C01

      *1

      Cruise Control Switch (ON-OFF button)

      -

      -

      *a

      Component without harness connected

      (Cruise Control Switch (Cruise Control Main 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

    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

    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 here

      w/o VSC:Click 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 here

    C

    REPLACE SPIRAL CABLE SUB-ASSEMBLY

    Click here

    A

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

    1. Disconnect the ECM connector.

    2. Disconnect the spiral cable sub-assembly connector.

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

      Standard Resistance (Check for Open)

      Table 1. for 1NR-FE, 1ZR-FAE

      Tester Connection

      Condition

      Specified Condition

      A50-60 (CCS) - E6-1 (CCS)

      Always

      Below 1 Ω
      Table 2. for 1AD-FTV

      Tester Connection

      Condition

      Specified Condition

      A118-23 (CCS) - E6-1 (CCS)

      Always

      Below 1 Ω

      Standard Resistance (Check for Short)

      Table 3. for 1NR-FE, 1ZR-FAE

      Tester Connection

      Condition

      Specified Condition

      A50-60 (CCS) or E6-1 (CCS) - Body ground

      Always

      10 kΩ or higher
      Table 4. for 1AD-FTV

      Tester Connection

      Condition

      Specified Condition

      A118-23 (CCS) or E6-1 (CCS) - Body ground

      Always

      10 kΩ or higher

    4. Reconnect the spiral cable sub-assembly connector.

    5. Reconnect the ECM connector.

    Result

    Proceed to

    OK

    NG
    NG

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

    OK

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

    1. Disconnect the 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

      Result

      Result

      Proceed to

      OK (for 1NR-FE)

      A

      OK (for 1ZR-FAE)

      B

      OK (for 1AD-FTV)

      C

      NG

      D

    3. Reconnect the spiral cable sub-assembly connector.

    A

    REPLACE ECM

    Click here

    B

    REPLACE ECM

    Click here

    C

    REPLACE ECM

    Click here

    D

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