HYBRID CONTROL SYSTEM Pattern Select Switch EV Mode Circuit

DESCRIPTION

The EV mode signal is sent to the power management control ECU. This signal is then transmitted from the power management control ECU via CAN to the combination meter sub-assembly to illuminate the EV mode indicator light.

WIRING DIAGRAM

A01HV6OE02

INSPECTION PROCEDURE

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

EV Mode Entry Condition Tester Display Specified Condition
HV battery charge level State of Charge (All Bat) Approximately 50% or higher
Accelerator pedal position Accelerator Degree Below approximately 30%
Engine coolant temperature Engine Coolant Temp 20°C (68°F) or higher
HV battery temperature Temp of Batt TB1 to TB3 Between 10 to 40°C (50 to 104°F)

Vehicle speed

(Varies depending on engine warm-up condition)

 Vehicle Spd

Cold: 40 km/h (25 mph) or less

Warmed-up: 55 km/h (34 mph)
Win Charge Control Value Below -5000 kW
Wout Discharge Control Value 11500 kW or higher
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 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 multi-information display, one or more of the EV mode entry conditions have not been met. Check that all of the EV mode entry conditions have been met before pressing the EV drive mode switch (pattern select switch assembly).


    B

    COMPLETED

    A

  2. READ VALUE USING TECHSTREAM (CAN BUS CHECK)


    1. Connect the Techstream 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 Techstream to the DLC3.

    2. Turn the power switch on (IG).

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

    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

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


    1. Connect the Techstream 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 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 TECHSTREAM (EV REQUEST, EV SWITCH)


    1. Connect the Techstream 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 Techstream.

      Tester Display Measurement Item/Range Normal Condition
      EV request

      EV mode transition availability/

      ON or OFF

      		 In EV mode: ON
      EV Switch

      EV drive mode switch (pattern select switch assembly) condition/

      ON or OFF

      		 EV drive mode switch (pattern select switch assembly) being pushed and held: ON
      Result
      Result Proceed to
      The Techstream display changes according to the EV drive mode switch (pattern select switch assembly) operation. A
      The Techstream display does not change according to the EV drive mode switch (pattern select switch assembly) operation. B

    5. Turn the power switch off.


    B

    INSPECT EV DRIVE MODE SWITCH (PATTERN SELECT SWITCH ASSEMBLY) Click here

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

  6. INSPECT EV DRIVE MODE SWITCH (PATTERN SELECT SWITCH ASSEMBLY)


    1. Remove the EV drive mode switch (pattern select switch assembly) Click here.

    2. A01HUKCE01
      Text in Illustration
      *a

      Component without harness connected

      (EV Drive Mode Switch (Pattern Select Switch Assembly))

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      I48-4 (S) - I48-1 (E) EV drive mode switch (pattern select switch assembly) being pushed and held Below 1 Ω
      EV drive mode switch (pattern select switch assembly) not pushed 10 kΩ or higher

    3. Install the EV drive mode switch (pattern select switch assembly).


    NG

    REPLACE EV DRIVE MODE SWITCH (PATTERN SELECT SWITCH ASSEMBLY) Click here

    OK

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


    1. Disconnect connector I48 from the EV drive mode switch (pattern select switch assembly).

    2. A01HVC7E01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to EV Drive Mode Switch (Pattern Select Switch Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I48-1 (E) - Body ground Always Below 1 Ω

    3. Connect the EV drive mode switch (pattern select switch assembly) connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect connector I3 from the power management control ECU.

    2. Disconnect connector I48 from the EV drive mode switch (pattern select switch assembly).

    3. A01HT1HE01
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *b

      Front view of wire harness connector

      (to EV Drive Mode Switch (Pattern Select Switch Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I3-13 (EVSW) - I48-4 (S) Always Below 1 Ω
      I3-13 (EVSW) or I48-4 (S) - Body ground Always 10 kΩ or higher

    4. Connect the EV drive mode switch (pattern select switch assembly) connector.

    5. Connect the power management control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here