HYBRID CONTROL SYSTEM Pattern Select Switch EV Mode Circuit

DESCRIPTION

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

WIRING DIAGRAM

B005YYIE40

CAUTION / NOTICE / HINT

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 0°C (32°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: 30 km/h (19 mph) or less

Warmed-up: 45 km/h (28 mph)
Win Charge Control Value Below -20 kW
Wout Discharge Control Value 20 kW or higher
Defroster - OFF
Cruise control - OFF

PROCEDURE


  1. ASK ABOUT VEHICLE CONDITION


    1. Check if a buzzer sounded when attempting to enter EV mode.

      Result
      Result Proceed to
      No buzzer sounded. A
      A buzzer sounded. B

      Tech Tips

      If a buzzer sounds, 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 (Combination Switch Assembly).


    B

    COMPLETED

    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.

      (w/ Central Gateway ECU)

      		 B

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

      (w/o Central Gateway ECU)

      		 C

    4. Turn the power switch off.


    B

    GO TO CAN COMMUNICATION SYSTEM (w/ Central Gateway ECU) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM (w/o Central Gateway ECU) 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 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 mode indicator light comes on or blinks.
      Result
      Result Proceed to
      OK A
      NG (w/o Multi-information Display) B
      NG (w/ Multi-information Display) C

    5. Turn the power switch off.


    B

    REPLACE METER CIRCUIT PLATE Click here

    C

    REPLACE COMBINATION METER SUB-ASSEMBLY Click here

    A

  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 mode transition availability/

      ON or OFF

      		 In EV 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. CHECK EV DRIVE MODE SWITCH (COMBINATION SWITCH ASSEMBLY)


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

    2. B005YRBE17
      Text in Illustration
      *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
      7 (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).


    NG

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

    OK

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


    1. Disconnect the L143 EV drive mode switch (combination switch assembly) connector.

    2. B005YHLE02
      Text in Illustration
      *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
      L143-3 (E) - Body ground Always Below 1 Ω

    3. Reconnect the L143 EV drive mode switch (combination switch assembly) connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the L5 hybrid vehicle control ECU connector.

    2. Disconnect the L143 EV drive mode switch (combination switch assembly) connector.

    3. B005YNKE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle 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
      L5-15 (EVSW) - L143-7 (S) Always Below 1 Ω
      L5-15 (EVSW) or L143-7 (S) - Body ground Always 10 kΩ or higher

    4. Reconnect the L143 EV drive mode switch (combination switch assembly) connector.

    5. Reconnect the L5 hybrid vehicle control ECU connector.


    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR