HYBRID CONTROL SYSTEM Pattern Select Switch Eco Mode Circuit

DESCRIPTION

When selecting ECO mode, the switch operation signal is sent to the air conditioning amplifier assembly. Following this, ECO mode control is activated for the heater and air conditioning system.

WIRING DIAGRAM

Refer to the wiring diagram for Pattern select switch SPORT mode circuit Click here.

A003WBTE02

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (CAN BUS CHECK)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: System Select / CAN Bus Check.

      Result
      Result Proceed to
      All of the ECUs and sensors that are currently connected to the CAN communication system are displayed. A
      None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed. B

    4. Turn the power switch off.


    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK DTC OUTPUT (ALL CODES)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: System Select / Utility / All Codes.

    4. Check DTCs.

      Result
      Result Proceed to
      No DTCs are output. A
      DTCs are output. B

    5. Turn the power switch off.


    B

    GO TO DTC CHART

    A

  3. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (INDICAT. ECO MODE)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Body / Combination Meter / Active Test / Indicat. ECO Mode.

    4. Perform the "Indicat. ECO MODE" Active Test.

      OK
      The ECO MODE indicator lamp comes on or blinks.

    5. Turn the power switch off.


    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  4. READ VALUE USING INTELLIGENT TESTER (ECO MODE)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / ECO Mode.

    4. Read the value displayed on the intelligent tester.

      Tester Display Measurement Item/Range Normal Condition
      ECO Mode

      ECO mode transition availability/

      ON or OFF

      		 In ECO mode: ON
      Result
      Result Proceed to
      The intelligent tester display changes according to the mode switch (ECO mode) operation. A
      The intelligent tester display does not changes according to the mode switch (ECO mode) operation. B

    B

    READ VALUE USING INTELLIGENT TESTER (ECO SWITCH) Click here

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

  5. READ VALUE USING INTELLIGENT TESTER (ECO SWITCH)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Body / Air Conditioning / Data List / ECO Switch.

    4. Read the value displayed on the intelligent tester.

      Tester Display Measurement Item/Range Normal Condition
      ECO Switch

      Mode switch (ECO mode) condition/

      ON or OFF

      Mode switch being turned and held at ECO position: ON

      Mode switch not turned: OFF
      Result
      Result Proceed to
      The intelligent tester display changes according to the mode switch (ECO mode) operation. A
      The intelligent tester display does not changes according to the mode switch (ECO mode) operation. B

    B

    CHECK COMBINATION SWITCH ASSEMBLY (ECO MODE / NORMAL MODE) Click here

    A

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

  6. CHECK COMBINATION SWITCH ASSEMBLY (ECO MODE / NORMAL MODE)


    1. Remove the combination switch assembly.

    2. A003Y89E08
      Text in Illustration
      *a

      Component without harness connected

      (Combination Switch Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H72-5 (ECO) - H72-13 (E) Mode switch being turned and held at ECO position Below 1 Ω
      Mode switch not turned 10 kΩ or higher
      H72-4 (NORM) - H72-14 (E) Mode switch being pushed and held Below 1 Ω
      Mode switch not pushed 10 kΩ or higher

    3. Install the combination switch assembly.


    NG

    REPLACE COMBINATION SWITCH ASSEMBLY Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - COMBINATION SWITCH)


    1. Disconnect connector H85 from the air conditioning amplifier assembly.

    2. Disconnect connector H72 from the combination switch assembly.

    3. A003XHZE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Conditioning Amplifier Assembly)
      *b

      Front view of wire harness connector

      (to Combination Switch Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H85-15 (ECON) - H72-5 (ECO) Always Below 1 Ω
      H85-15 (ECON) or H72-5 (ECO) - Body ground Always 10 kΩ or higher
      H85-35 (SG-4) - H72-13 (E) Always Below 1 Ω

    4. Connect the combination switch assembly connector.

    5. Connect the air conditioning amplifier assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND)


    1. Disconnect connector H72 from the combination switch assembly.

    2. A003ZQ3E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Combination Switch Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H72-14 (E) - Body ground Always Below 1 Ω

    3. Connect the combination switch assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HARNESS AND CONNECTOR (ECM - COMBINATION SWITCH ASSEMBLY)


    1. Disconnect connector A60 from the ECM.

    2. Disconnect connector H72 from the combination switch assembly.

    3. A003W4SE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)
      *b

      Front view of wire harness connector

      (to Combination Switch Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A60-30 (NE01) - H72-4 (NORM) Always Below 1 Ω
      A60-30 (NE01) or H72-4 (NORM) - Body ground Always 10 kΩ or higher

    4. Connect the combination switch assembly connector.

    5. Connect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here