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

A0139CXE03

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 canceled. (A buzzer sounds to indicate that the transition to EV drive mode is canceled.)

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 EV drive mode switch (combination switch assembly).


    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.


      Body Electrical > Combination Meter > Active Test
      Tester Display
      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.

      Result
      Proceed to
      OK
      NG

    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.


      Powertrain > Hybrid Control > Data List
      Tester Display
      EV Request
      EV Switch

    4. Read the value displayed on the GTS.


      Powertrain > Hybrid Control > Data List
      Tester Display Measurement Item Range Normal Condition
      EV Request EV drive mode transition availability ON or OFF In EV drive mode: ON
      EV Switch EV drive mode switch (Combination switch assembly) condition ON or OFF EV drive mode switch (Combination switch assembly) being pushed and held: ON
      Result
      Result Proceed to
      The GTS display changes according to the EV drive mode switch (combination switch assembly) operation. A
      The GTS display does not change according to the EV drive mode Switch (combination switch assembly) operation. B

    5. Turn the power switch off.


    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

  6. INSPECT EV DRIVE MODE SWITCH (COMBINATION SWITCH ASSEMBLY)


    1. Remove the EV drive mode switch (combination switch assembly).

      Click here

    2. A013AS8C01
      *a

      Component without harness connected

      EV Drive Mode Switch (Combination Switch Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (S) - 3 (E) EV drive mode switch (combination switch assembly) being pushed and held Below 1 Ω
      EV drive mode switch (combination switch assembly) not pushed 10 kΩ or higher

    3. Install the EV drive mode switch (combination switch assembly).

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE EV DRIVE MODE SWITCH (COMBINATION SWITCH ASSEMBLY) Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (EV DRIVE MODE SWITCH (COMBINATION SWITCH ASSEMBLY) - BODY GROUND)


    1. Disconnect the E114 EV drive mode switch (combination switch assembly) connector.

    2. A0139K7C01
      *a

      Front view of wire harness connector

      (to EV Drive Mode Switch (Combination Switch Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E114-3 (E) - Body ground Always Below 1 Ω

    3. Reconnect the E114 EV drive mode switch (combination switch assembly) connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - EV DRIVE MODE SWITCH (COMBINATION SWITCH ASSEMBLY))


    1. Disconnect the E111 power management control ECU connector.

    2. Disconnect the E114 EV drive mode switch (combination switch assembly) connector.

    3. A013AOMC01
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *b

      Front view of wire harness connector

      (to EV Drive Mode Switch (Combination Switch Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E111-13 (EVSW) - E114-1 (S) Always Below 1 Ω
      E111-13 (EVSW) or E114-1 (S) - Body ground Always 10 kΩ or higher

    4. Reconnect the E114 EV drive mode switch (combination switch assembly) connector.

    5. Reconnect the E111 power management control ECU connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU for LHD: Click here
    REPLACE POWER MANAGEMENT CONTROL ECU for RHD: Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR