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

A000SDZE15
*a Combination Meter Assembly
*b Combination Switch Assembly (EV Mode)
*c Power Management Control ECU
*d CAN Communication

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 55%
Engine coolant temperature Engine Coolant Temp 0°C (32°F) or higher
HV battery temperature Temp of Batt TB1 to TB5 Between 6 to 46°C (42.8 to 114.8°F)

Vehicle speed

(Varies depending on engine warm-up condition)

 Vehicle Spd

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

Warmed-up: 40 km/h (25 mph)
Win Charge Control Value Below 0 kW
Wout Discharge Control Value 17 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 the 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 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. for LHD B
      for RHD C

    4. Turn the power switch off.


    B

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) 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 (EV MODE INDICATOR)


    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 / EV Mode Indicator.

    4. Perform the "EV Mode Indicator" 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 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

      Combination switch assembly (EV mode) condition/

      ON or OFF

      Combination switch assembly (EV mode) being pushed and held:

      ON
      Result
      Result Proceed to
      The GTS display changes according to the combination switch assembly (EV mode) operation. A
      The GTS display does not change according to the combination switch assembly (EV mode) operation. B

    5. Turn the power switch off.


    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

  6. INSPECT COMBINATION SWITCH ASSEMBLY


    1. Remove the combination switch assembly Click here.

    2. A000RNYE01
      Text in Illustration
      *a

      Component without harness connected

      (Combination Switch Assembly)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      N59-5 (S) - N59-4 (GND) Combination switch assembly (EV mode) being pushed and held Below 10 Ω
      Combination switch assembly (EV mode) not pushed 10 kΩ or higher

    3. Install the combination switch assembly.


    NG

    REPLACE COMBINATION SWITCH ASSEMBLY Click here

    OK

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


    1. Disconnect the connector from the combination switch assembly.

    2. A000SVZE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Combination Switch Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N59-4 (GND) - Body ground Always Below 1 Ω

    3. Connect the combination switch assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


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

    2. Disconnect the connector from the combination switch assembly.

    3. A000QTJE03
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *b

      Front view of wire harness connector

      (to Combination Switch Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N92-9 (EVSW) - N59-5 (S) Always Below 1 Ω
      N92-9 (EVSW) or N59-5 (S) - Body ground Always 10 kΩ or higher

    4. Connect the combination switch assembly connector.

    5. Connect the power management control ECU connector.


    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR