CRUISE CONTROL SYSTEM(for 1WW) Cruise Control Switch Circuit

DTC Code DTC Name
Cruise Control Switch Circuit

DESCRIPTION

  • The cruise control main switch outputs the signals of the power source for cruise control and the signals of the various operation switches to the ECM.

  • The ECM performs cruise control in accordance with the signals from the cruise control main switch.

WIRING DIAGRAM

E314989E03

PROCEDURE

  1. READ VALUE USING GTS (CRUISE CONTROL SWITCH)

    1. Use the Data List to check if the cruise control main switch is functioning properly (Click here).

      Table 1. Cruise Control

      Tester Display

      Measurement Item/Range

      Normal Condition

      Diagnostic Note

      Cruise Control Switch

      Cruise control switch signal / ON or OFF

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

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

      -

      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

      -

      OK

      On screen, each item changes between ON and OFF according to above chart.

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    (Click here)

  2. INSPECT SPIRAL CABLE SUB-ASSEMBLY

    1. Remove the spiral cable sub-assembly (Click here).

    2. Inspect the spiral cable sub-assembly (Click here).

    REPLACE SPIRAL CABLE SUB-ASSEMBLY

    (Click here)

  3. INSPECT CRUISE CONTROL SWITCH WIRE

    U123759E01

    1. Disconnect the z12 spiral cable connector.

    2. Disconnect the z11 switch connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      z12-3 (CCS) - z11-3 (CCS)

      Always

      Below 1 Ω

      z12-4 (ECC) - z11-1 (ECC)

      z12-3 (CCS) - Body ground

      Always

      10 kΩ or higher

      z12-4 (ECC) - Body ground
    Table 2. Text in Illustration

    *a

    Front view of wire harness connector

    (to Spiral Cable)

    *b

    Front view of wire harness connector

    (to Cruise Control Main Switch)

    REPLACE CRUISE CONTROL SWITCH WIRE

  4. INSPECT CRUISE CONTROL MAIN SWITCH

    1. Remove the cruise control main switch (Click here).

    2. Inspect the cruise control main switch (Click here).

    REPLACE CRUISE CONTROL MAIN SWITCH

    (Click here)

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

    1. Disconnect the H130 spiral cable connector.

    2. Disconnect the A76 ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H130-1 (CCS) - A76-41 (CCS)

      Always

      Below 1 Ω

      H130-2 (ECC) - A76-42 (ECCS)

      H130-2 (ECC) - Body ground

      10 kΩ or higher

      H130-1 (CCS) - Body ground

    REPLACE ECM

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR