CRUISE CONTROL SYSTEM Cruise Control Switch Circuit

DESCRIPTION

This circuit sends a signal to the ECM depending on the cruise control main 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

A01GIOWE01

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (CRUISE CONTROL MAIN SWITCH)


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

      Cruise Control
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      CCS Main SW M-CPU Cruise control main switch signal (Main CPU) / ON or OFF

      ON: Cruise control main switch is ON

      OFF: Cruise control main switch is OFF

      		 -
      Cancel Switch CANCEL switch signal / ON or OFF

      ON: CANCEL switch ON

      OFF: CANCEL switch OFF

      		 -
      SET/COAT 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 cruise control main switch operation is performed, the results are the same as above.

    NG

    INSPECT CRUISE CONTROL SWITCH WIRE Click here

    OK

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  2. INSPECT CRUISE CONTROL SWITCH WIRE

    A01GI74E01

    1. Disconnect the z2 spiral cable connector.

    2. Disconnect the A cruise control main switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z2-3 - A-3 Always Below 1 Ω
      z2-4 - A-1 Always Below 1 Ω
      A-3 - Body ground Always 10 kΩ or higher
      A-1 - Body ground Always 10 kΩ or higher

    NG

    REPLACE CRUISE CONTROL SWITCH WIRE

    OK

  3. INSPECT CRUISE CONTROL SWITCH

    A01GN34E02

    1. Remove the cruise control main switch Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 - 3 Cruise control main switch ON Below 1 Ω
      1 - 3 Cruise control main switch OFF 10 kΩ or higher
      1 - 3 +/RES switch hold ON 235 to 245 Ω
      1 - 3 -/SET switch hold ON 620 to 640 Ω
      1 - 3 CANCEL switch hold ON 1510 to 1570 Ω

    NG

    REPLACE CRUISE CONTROL SWITCH Click here

    OK

  4. INSPECT SPIRAL CABLE SUB-ASSEMBLY

    A01GKLOE01

    1. Disconnect the z2 wire switch connector.

    2. Disconnect the L110 cable connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z2-3 - L110-1 (CCS) Always Below 3 Ω
      z2-2 - L110-2 (ECC) Always Below 3 Ω
      z2-3 - Body ground Always 10 kΩ or higher
      z2-4 - Body ground Always 10 kΩ or higher

    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

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

    A01GL2RE01

    1. Disconnect the L110 cable connector.

    2. Disconnect the A13 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L110-1 (CCS) - A13-15 (CCS) Always Below 1 Ω
      L110-2 (ECC) - Body ground Always Below 1 Ω
      L110-1 (CCS) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (for 1UR-FSE) A
      OK (for 1UR-FE) B
      NG C

    B

    REPLACE ECM Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

    REPLACE ECM Click here