CRUISE CONTROL SYSTEM 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 the SET, - (COAST), RES (RESUME), + (ACCEL), and CANCEL functions.

WIRING DIAGRAM

A01G4LFE02

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING GTS (MAIN SW M-CPU, CANCEL SWITCH, SET/COAST SWITCH, RES/ACC SWITCH)

    A01G7HYE21
    Text in Illustration
    *a ON-OFF
    *b -/SET
    *c +/RES
    *d CANCEL

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    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.

      Cruise Control
      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 (ON-OFF button) pushed

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

      		 -
      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

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

    6. Turn the engine switch off.


    NG

    INSPECT CRUISE CONTROL SWITCH Click here

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  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.

      A01G6XBE19
      Text in Illustration
      *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 235 to 245 Ω
      -/SET 617 to 643 Ω
      CANCEL 1509 to 1571 Ω

    3. Reinstall the cruise control switch.


    NG

    REPLACE CRUISE CONTROL SWITCH Click here

    OK

  3. CHECK CRUISE CONTROL SWITCH WIRE (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - CRUISE CONTROL SWITCH)


    1. Remove the cruise control switch wire.

    2. A01G76GE07
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Spiral Cable with Sensor Sub-assembly)
      *b

      Front view of wire harness connector

      (to Cruise Control Switch)

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      z6-3 - Cruise control switch side connector terminal 3 Always Below 1 Ω
      z6-4 - Cruise control switch side connector terminal 1 Always Below 1 Ω

    3. Reinstall the cruise control switch wire.


    NG

    REPAIR OR REPLACE CRUISE CONTROL SWITCH WIRE

    OK

  4. CHECK SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

    Note

    The spiral cable with sensor sub-assembly is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable with sensor sub-assembly may prevent the airbag from deploying. Be sure to read the pages shown in the brackets.

    Tech Tips



    1. A01G5G1E14
      Text in Illustration
      *a

      Component without harness connected

      (Spiral Cable with Sensor Sub-assembly)

      Remove the spiral cable with sensor sub-assembly.

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

      Standard Resistance (Check for Open)
      Tester Connection Spiral Cable Sub-assembly Position Specified Condition
      z6-3 - H22-1 (CCS) Center 3 Ω or less
      2.5 rotations to the left
      2.5 rotations to the right
      z6-4 - H22-2 (ECC) Center 3 Ω or less
      2.5 rotations to the left
      2.5 rotations to the right

    3. After setting the spiral cable with sensor sub-assembly to the center position, rotate the spiral cable with sensor sub-assembly 2.5 times clockwise. Then while rotating the spiral cable with sensor sub-assembly 5 times counterclockwise, measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      z6-3 - H22-1 (CCS) Always 3 Ω or less
      z6-4 - H22-2 (ECC) Always 3 Ω or less

      Tech Tips

      The spiral cable with sensor sub-assembly makes a maximum of approximately 5 rotations.

    4. Reinstall the spiral cable with sensor sub-assembly.


    NG

    REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Click here

    OK

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


    1. Disconnect the A22 or A64 ECM connector.

    2. Disconnect the H22 spiral cable with sensor sub-assembly connector.

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

      Standard Resistance (Check for Open)
      for 2AR-FE
      Tester Connection Condition Specified Condition
      A64-40 (CCS) - H22-1 (CCS) Always 3 Ω or less
      for 2GR-FE
      Tester Connection Condition Specified Condition
      A22-47 (CCS) - H22-1 (CCS) Always 3 Ω or less
      Standard Resistance (Check for Short)
      for 2AR-FE
      Tester Connection Condition Specified Condition
      A64-40 (CCS) or H22-1 (CCS) - Body ground Always 1 MΩ or higher
      for 2GR-FE
      Tester Connection Condition Specified Condition
      A22-47 (CCS) or H22-1 (CCS) - Body ground Always 1 MΩ or higher

    4. Reconnect the H22 spiral cable with sensor sub-assembly connector.

    5. Reconnect the A22 or A64 ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the H22 spiral cable with sensor 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
      H22-2 (ECC) - Body ground Always Below 1 Ω
      Result
      Result Proceed to
      OK (for 2AR-FE) A
      OK (for 2GR-FE) B
      NG C

    3. Reconnect the H22 spiral cable with sensor sub-assembly connector.


    B

    REPLACE ECM Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

    REPLACE ECM Click here