HYBRID CONTROL SYSTEM Pattern Select Switch EV Mode Circuit

DESCRIPTION

The EV drive mode signal will be sent to the power management control ECU when the EV drive mode switch is operated. If the specified conditions are met, the system enters EV drive mode and the vehicle will be driven using EV drive mode. This signal is then transmitted from the power management control ECU via CAN to the combination meter assembly to illuminate the EV drive mode indicator light.

WIRING DIAGRAM

A0007O1E01

CAUTION / NOTICE / HINT

If any of the following conditions are not met, EV drive mode may not be turned on or the mode may be cancelled. (A buzzer sounds to indicate that the transition to EV drive mode is cancelled.)

EV Drive Mode Entry Condition Tester Display Specified Condition
HV battery charge level State of Charge (All Bat) Approximately 50% or higher
Engine coolant temperature Engine Coolant Temp 0°C (32°F) or higher

Vehicle speed

(Varies depending on engine warm-up condition)

 Vehicle Spd

Cold: 30 km/h (19 mph) or less

Warmed-up: 45 km/h (28 mph) or less
Defroster - OFF
Cruise control - OFF

PROCEDURE


  1. ASK ABOUT VEHICLE CONDITION


    1. Check if a buzzer sounded and a message was displayed on the multi-information display when attempting to enter EV drive mode.

      Result
      Result Proceed to
      No buzzer sounded and no message was displayed on multi-information display. A
      A buzzer sounded and a message was displayed on multi-information display. B

      Tech Tips

      If a buzzer sounds and a message is displayed on the multi-information display, one or more of the EV drive mode entry conditions have not been met. Check that all of the EV drive mode entry conditions have been met before pressing the integration control and panel assembly (EV drive mode switch).


    B

    END

    A

  2. 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

  3. 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

  4. PERFORM ACTIVE TEST USING GTS (INDICAT. EV MODE)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

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

    4. Perform the "Indicat. EV Mode" Active Test.

      OK
      The EV drive mode indicator light comes on or blinks.

    5. Turn the power switch off.


    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  5. READ VALUE USING GTS (EV REQUEST, EV SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / EV request, EV Switch.

    4. Read the value displayed on the GTS.

      Tester Display Measurement Item/Range Normal Condition
      EV request

      EV drive mode transition availability/

      ON or OFF

      		 In EV drive mode: ON
      EV Switch

      Integration control and panel assembly condition/

      ON or OFF

      		 EV drive mode switch being pushed and held: 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

    5. Turn the power switch off.


    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

  6. INSPECT INTEGRATION CONTROL AND PANEL ASSEMBLY (EV DRIVE MODE SWITCH)


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

    2. A0009MUE04
      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
      1 - 5 EV drive mode switch being pushed and held Below 1 Ω
      EV drive 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

  7. 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

  8. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INTEGRATION CONTROL AND PANEL ASSEMBLY)


    1. Disconnect the H1 power management control ECU connector.

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

    3. A0008WXE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *b

      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
      H1-13 (EVSW) - H71-1 (S) Always Below 1 Ω
      H1-13 (EVSW) or H71-1 (S) - Body ground Always 10 kΩ or higher

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

    5. Reconnect the H1 power management control ECU connector.


    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR