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HYBRID CONTROL SYSTEM Drive Start Control

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DTC Code DTC Name
  Drive Start Control
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DESCRIPTION

The drive start control is controlled by the hybrid vehicle control ECU assembly.

If the hybrid vehicle control ECU assembly determines that the shift lever and accelerator pedal are operated abnormally, driving torque is restricted and, when necessary, a warning is displayed on the combination meter assembly and head up display*.

*: w/ Head up display

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CAUTION / NOTICE / HINT

Tip:

Even if the accelerator pedal position is maintained, the system output may increase when driving uphill and decrease when driving downhill. This is due to drive start control controlling the driving torque, and is not a malfunction.

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PROCEDURE


  1. Click here

    SYMPTOM CONFIRMATION


    1. Interview the customer to confirm the problem.

      Result
      Proceed to
      Hunting
      Hesitation/poor acceleration

  2. Click here

    PAST ACTIVATION CONFIRMATION


    1. Check if the customer operated the vehicle in a way that would cause the drive start control to operate.

      Tip: Drive Start Control Activation Conditions
      • Shift control

      • Activation conditions


      • Pattern A (When all of the following conditions are met, control starts.)


        • The accelerator pedal is open by approximately 1/5 or more.

        • The shift state is changed from park (P) to any forward shift state (drive (D) or manual (M)) or reverse (R).


      • Pattern B (When all of the following conditions are met, control starts.)


        • The accelerator pedal is open by approximately 1/5 or more.

        • B004V1GE07

          The shift state is changed from reverse (R) to any forward shift state (drive (D) or manual (M)), any forward shift state (drive (D) or manual (M)) to reverse (R), or neutral (N) to reverse (R).

          If the shift lever is moved to attempt to change the shift state from park (P) when the accelerator pedal is depressed, the shift state will not change and drive-start control will not operate.


      • Items Controlled


        • Driving torque is restricted.


      • Deactivation Conditions


        • The accelerator pedal is released.

        • The shift state is in park (P) or neutral (N).


      • Reverse control

      • Activation conditions


      • The shift state is in reverse (R).

      • B004RMSE05

        The accelerator pedal is depressed excessively.


      • Items Controlled


        • Driving torque is restricted.


      • Deactivation Conditions


        • The accelerator pedal is released.

        • The shift state is changed to any shift state other than reverse (R).

      Tip:

      • The driving torque restricted level differs between pattern A, pattern B and Reverse control.

      • During reverse control or shift control, driving torque is adjusted based on the road gradient and steering angle.

      Result
      Result Proceed to
      Performed A
      Not performed B

  3. Click here

    CHECK DTC OUTPUT (HEALTH CHECK)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. Check the DTCs.

    6. Turn the power switch off.

      Result
      Proceed to
      DTCs are not output
      DTC is output

    • DTCs are not outputClick here
    • DTC is output

      GO TO DTC CHART

  4. Click here

    READ VALUE USING GTS (FR, FL, RR, RL WHEEL SPEED)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / ABS/VSC/TRC / Data List / FR Wheel Speed, FL Wheel Speed, RR Wheel Speed and RL Wheel Speed.


      1. Chassis > ABS/VSC/TRC > Data List
        Tester Display
        FR Wheel Speed
        FL Wheel Speed
        RR Wheel Speed
        RL Wheel Speed







    5. Read the value displayed on the GTS.

      Tip:

      If the Data List updates slowly, perform measurement after selecting only the "FR Wheel Speed", "FL Wheel Speed", "RR Wheel Speed" and "RL Wheel Speed" items.


      1. Chassis > ABS/VSC/TRC > Data List
        Tester Display Measurement Item Range Normal Condition
        FR Wheel Speed Front speed sensor RH Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) When driving at constant speed: No large fluctuations
        FL Wheel Speed Front speed sensor LH Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) When driving at constant speed: No large fluctuations
        RR Wheel Speed Rear speed sensor RH Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) When driving at constant speed: No large fluctuations
        RL Wheel Speed Rear speed sensor LH Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) When driving at constant speed: No large fluctuations





      Standard
      GTS Display Condition Specified Condition

      FR Wheel Speed

      FL Wheel Speed

      RR Wheel Speed

      RL Wheel Speed

      		 Vehicle stopped 0 km/h (0 mph)
      Vehicle being driven at constant speed between 16 to 64 km/h (10 to 40 mph) No large fluctuations when driving at a constant speed
      CAUTION:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

      Tip:

      Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

    6. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

  5. Click here

    READ VALUE USING GTS (VEHICLE SPEED)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Hybrid Control / Data List / Vehicle Speed.


      1. Powertrain > Hybrid Control > Data List
        Tester Display
        Vehicle Speed




    5. Read the value of "Vehicle Speed" displayed on the GTS.

      Tip:

      If the Data List updates slowly, perform measurement after selecting only the "Vehicle Speed" item.


      1. Powertrain > Hybrid Control > Data List
        Tester Display Measurement Item Range Normal Condition
        Vehicle Speed Vehicle speed Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)

        Vehicle stopped: 0 km/h (0 mph)

        While driving at a constant speed: No significant fluctuation


      Standard
      Inspection Condition Specified Condition
      Vehicle stopped 0 km/h (0 mph)

      Vehicle being driven at a constant speed

      (16 to 64 km/h (10 to 40 mph))

      		 No large fluctuations in displayed speed
      CAUTION:

      Perform this road test only in an appropriate safe location, in accordance with all local laws.

      Tip:

      Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

    6. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      INSPECT ELECTRONICALLY CONTROLLED BRAKE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)Click here

  6. Click here

    READ VALUE USING GTS (DECELERATION SENSOR)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / ABS/VSC/TRC / Data List / Deceleration Sensor and Deceleration Sensor2.


      1. Chassis > ABS/VSC/TRC > Data List
        Tester Display
        Deceleration Sensor
        Deceleration Sensor2





    5. Read the value displayed on the GTS.

      Tip:

      If the Data List updates slowly, perform measurement after selecting only the " Deceleration Sensor" and " Deceleration Sensor2" items.


      1. Chassis > ABS/VSC/TRC > Data List
        Tester Display Measurement Item Range Normal Condition
        Deceleration Sensor Acceleration sensor 1

        Min.: -18.525 m/s2, Max.: 18.387 m/s2

        		 During deceleration/acceleration: Changes continuously
        Deceleration Sensor2 Acceleration sensor 2

        Min.: -18.525 m/s2, Max.: 18.387 m/s2

        		 During deceleration/acceleration: Changes continuously



      Standard
      GTS Display Condition Specified Condition

      Deceleration Sensor

      Deceleration Sensor2

      		 During deceleration Value changes with vehicle speed
      During acceleration Value changes with vehicle speed
      CAUTION:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

      Tip:

      Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

    6. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

  7. Click here

    READ VALUE USING GTS (STEERING ANGLE SENSOR)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / ABS/VSC/TRC / Data List / Steering Angle Sensor.


      1. Chassis > ABS/VSC/TRC > Data List
        Tester Display
        Steering Angle Sensor




    5. Read the value displayed on the GTS.

      Tip:

      If the Data List updates slowly, perform measurement after selecting only the "Steering Angle Sensor" item.


      1. Chassis > ABS/VSC/TRC > Data List
        Tester Display Measurement Item Range Normal Condition
        Steering Angle Sensor Steering angle sensor Min.: -3276.8 degrees, Max.: 3276.7 degrees

        Turning left: Increases

        Turning right: Decreases


      Standard
      Condition Specified Condition
      Steering wheel turned left Value increases with steering wheel operation
      Steering wheel turned right Value decreases with steering wheel operation
      CAUTION:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

      Tip:

      Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

    6. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

  8. Click here

    PAST ACTIVATION CONFIRMATION


    1. Check if the customer operated the vehicle in a way that would cause the drive start control to operate.

      Tip: Drive Start Control Activation Conditions
      • Shift control

      • Activation conditions


      • Pattern A (When all of the following conditions are met, control starts.)


        • The accelerator pedal is open by approximately 1/5 or more.

        • The shift state is changed from park (P) to any forward shift state (drive (D) or manual (M)) or reverse (R).


      • Pattern B (When all of the following conditions are met, control starts.)


        • The accelerator pedal is open by approximately 1/5 or more.

        • B004V1GE08

          The shift state is changed from reverse (R) to any forward shift state (drive (D) or manual (M)), any forward shift state (drive (D) or manual (M)) to reverse (R), or neutral (N) to reverse (R).

          If the shift lever is moved to attempt to change the shift state from park (P) when the accelerator pedal is depressed, the shift state will not change and drive-start control will not operate.


      • Items Controlled


        • Driving torque is restricted.


      • Deactivation Conditions


        • The accelerator pedal is released.

        • The shift state is in park (P) or neutral (N).


      • Reverse control

      • Activation conditions


      • The shift state is in reverse (R).

      • B004RMSE06

        The accelerator pedal is depressed excessively.


      • Items Controlled


        • Driving torque is restricted.


      • Deactivation Conditions


        • The accelerator pedal is released.

        • The shift state is changed to any shift state other than reverse (R).

      Tip:

      • The driving torque restricted level differs between pattern A, pattern B and Reverse control.

      • During reverse control or shift control, driving torque is adjusted based on the road gradient and steering angle.

      Result
      Result Proceed to
      Not performed A
      Performed B
      Tip:

      If the customer operated the vehicle in a way which caused the drive start control to operate, explain the operation of the system to the customer and that the operation is not a malfunction.


  9. Click here

    CHECK DTC OUTPUT (HEALTH CHECK)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. Check the DTCs.

      Result
      Result Proceed to
      DTCs are not output A
      DTC is output B

    6. Turn the power switch off.


  10. Click here

    READ VALUE USING GTS (SHIFT POSITION)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Hybrid Control / Data List / Shift Position.


      1. Powertrain > Hybrid Control > Data List
        Tester Display
        Shift Position




    5. Read the value displayed on the GTS.


      1. Powertrain > Hybrid Control > Data List
        Tester Display Measurement Item Range Normal Condition
        Shift Position Current shift state P / R / N / D / B

        Matches currently selected shift state:

        park (P), reverse (R), neutral (N), drive (D) or manual (M)


      OK
      Condition Specified Condition
      Select shift state Matches currently selected shift state

    6. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      GO TO ELECTRONIC SHIFT LEVER SYSTEM for 2WD:

      GO TO ELECTRONIC SHIFT LEVER SYSTEMClick here

      GO TO ELECTRONIC SHIFT LEVER SYSTEM for AWD:

      GO TO ELECTRONIC SHIFT LEVER SYSTEMClick here

  11. Click here

    READ VALUE USING GTS (ACCELERATOR POSITION SENSOR NO. 1 VOLTAGE %, ACCELERATOR POSITION SENSOR NO. 2 VOLTAGE %)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Hybrid Control / Data List / Accelerator Position Sensor No.1 Voltage %, Accelerator Position Sensor No.2 Voltage %.


      1. Powertrain > Hybrid Control > Data List
        Tester Display
        Accelerator Position Sensor No.1 Voltage %
        Accelerator Position Sensor No.2 Voltage %





    5. Read the value displayed on the GTS.

      Tip:

      If the Data List updates slowly, perform measurement after selecting only the "Accelerator Position Sensor No.1 Voltage %" and "Accelerator Position Sensor No.2 Voltage %" items.


      1. Powertrain > Hybrid Control > Data List
        Tester Display Measurement Item Range Normal Condition
        Accelerator Position Sensor No.1 Voltage % Accelerator pedal position sensor No. 1 Min.: 0.0%, Max.: 100.0%

        Accelerator pedal depressed:

        Changes with accelerator pedal pressure
        Accelerator Position Sensor No.2 Voltage % Accelerator pedal position sensor No. 2 Min.: 0.0%, Max.: 100.0%

        Accelerator pedal depressed:

        Accelerator pedal depressed:



      OK
      Condition Specified Condition
      Accelerator Pedal Released → Depressed Values smoothly change following accelerator pedal operation

    6. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

    • OK

      SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE)Click here

    • NG

      REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLYClick here