CRUISE CONTROL SYSTEM Cruise Control Switch Circuit

DESCRIPTION

This circuit sends a signal to the hybrid vehicle control ECU depending on the cruise control main switch condition. The auxiliary battery supplies positive (+) auxiliary battery voltage to the circuit control switch. Then terminal CCS of the hybrid vehicle control ECU receives the voltage according to the switch condition.

WIRING DIAGRAM

A01GXY9E02

INSPECTION PROCEDURE

PROCEDURE


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


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

      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 is ON

      OFF: Cruise control 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 switch operation is performed, the results are the same as above.

    NG

    INSPECT CRUISE CONTROL SWITCH WIRE Click here

    OK

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

  2. INSPECT CRUISE CONTROL SWITCH WIRE


    1. A01GZJPE02

      Disconnect the z2 cable connector.

    2. Disconnect the A 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


    1. A01H133E06

      Remove the cruise control 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 switch ON Below 2.5 Ω
      1 - 3 Cruise control switch OFF 1MΩ or higher
      1 - 3 +/RES switch hold ON 235 to 245 Ω
      1 - 3 -/SET switch hold ON 617 to 643 Ω
      1 - 3 CANCEL switch hold ON 1509 to 1571 Ω

    NG

    REPLACE CRUISE CONTROL SWITCH Click here

    OK

  4. INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. A01GXCVE01

      Disconnect the z2 switch connector.

    2. Disconnect the L126 cable connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      z2-3 - L126-1 (CCS) Always Below 3 Ω
      z2-4 - L126-2 (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 - HYBRID VEHICLE CONTROL ECU AND BODY GROUND)

    A01H108E02

    1. Disconnect the L126 cable connector.

    2. Disconnect the A76 ECU connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      L126-1 (CCS) - A76-35 (CCS) Always Below 1 Ω
      L126-2 (ECC) - Body ground Always Below 1 Ω
      L126-1 (CCS) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here