HYBRID CONTROL SYSTEM Pattern Select Switch Eco Mode Circuit

DESCRIPTION

When selecting ECO mode, the integration control and panel assembly 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.

A0006WEE02

PROCEDURE


  1. READ VALUE USING GTS (CAN BUS CHECK)


    1. Connect the GTS 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 (HEALTH CHECK)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: System Select / Health Check.

    4. Check for 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. READ VALUE USING GTS (ECO MODE)


    1. Connect the GTS 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 GTS.

      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 GTS display changes according to the integration control and panel assembly operation. A
      The GTS display does not change according to the integration control and panel assembly operation. B

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

  4. READ VALUE USING GTS (ECO SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Read the value displayed on the GTS.

      Tester Display Measurement Item/Range Normal Condition
      ECO Switch

      Integration control and panel assembly condition/

      ON or OFF

      Mode switch being turned and held at ECO position: ON

      Mode switch not turned: OFF
      Result
      Result Proceed to
      The GTS display changes according to the integration control and panel assembly operation. A
      The GTS display does not changes according to the integration control and panel assembly operation. B

    A

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    B

  5. INSPECT INTEGRATION CONTROL AND PANEL ASSEMBLY (MODE SWITCH)


    1. Remove the integration control and panel assembly Click here.

    2. A0009MUE05
      Text in Illustration
      *a

      Component without harness connected

      (Integration Control and Panel Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4 - 5 Mode switch being turned and held at ECO position Below 1 Ω
      Mode switch not turned 10 kΩ or higher
      2 - 5 Mode switch being pushed and held Below 1 Ω
      Mode switch not pushed 10 kΩ or higher

    3. Install the integration control and panel assembly.


    NG

    REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY - BODY GROUND)


    1. Disconnect the H71 integration control and panel assembly connector.

    2. A0005WGE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Integration Control and Panel Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H71-5 (E) - Body ground Always Below 1 Ω

    3. Reconnect the H71 integration control and panel assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - INTEGRATION CONTROL AND PANEL ASSEMBLY)


    1. Disconnect the H54 air conditioning amplifier assembly connector.

    2. Disconnect the H71 integration control and panel assembly connector.

    3. A0006QAE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Conditioning Amplifier Assembly)
      *b

      Rear view of wire harness connector

      (to Integration Control and Panel Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H54-4 (ECOS) - H71-4 (ECU) Always Below 1 Ω
      H54-4 (ECOS) or H71-4 (ECU) - Body ground Always 10 kΩ or higher

    4. Reconnect the H71 integration control and panel assembly connector.

    5. Reconnect the H54 air conditioning amplifier assembly connector.


    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR