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Home >> Toyota >> 2020 >> RAV4 LE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 136 (Hybrid Control System (Lithium-Ion Battery) - Circuit Tests (2 Of 2)) >> HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY) >> Drive Start Control [06/2020 - ] >> Procedure

Drive Start Control [06/2020 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. SYMPTOM CONFIRMATION 
    1. Interview the customer to confirm the problem.

      Result

      Result  Proceed to
      Hunting  A
      Hesitation/poor acceleration  B

    Result: 

    B 

    See step  7

    Result: 

    A 

    See step  2

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

      HINT: 

      Drive Start Control Activation Conditions 

      Shift control 

      1. 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 lever is moved from P to (D or S) or R.
      • Pattern B (When all of the following conditions are met, control starts.)
        • The accelerator pedal is open by approximately 1/5 or more.
        • The shift lever is moved from R to (D or S), from (D or S) or N to R.
          GTY905864Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Items Controlled
        • Hybrid system output is restricted.
      • Deactivation Conditions
        • The accelerator pedal is released.
        • The shift lever is in P or N.

      Reverse control 

      1. Activation conditions
      • The shift lever is in R.
      • The accelerator pedal is depressed excessively.
        GTY993437Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Items Controlled
        • Hybrid system output is restricted.
      • Deactivation Conditions
        • The accelerator pedal is released.
        • The shift lever is moved to any position other than R.

      HINT: 

      • The hybrid system output restricted level differs between Pattern A, Pattern B and Reverse control.
      • During Shift control or Reverse control, hybrid system output is adjusted based on the road gradient.

      Result

      Result  Proceed to
      Performed  A
      Not performed  B

    Result: 

    B 

    SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE). Refer to  PROBLEM SYMPTOMS TABLE [06/2020 - ] 

    Result: 

    A 

    See step  3

  3. CHECK DTC OUTPUT (HEALTH CHECK) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: System Select / Health Check.
    5. Check the DTCs.
    6. Turn the ignition switch off.

      Result

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

    Result: 

    B 

    GO TO  DIAGNOSTIC TROUBLE CODE CHART [06/2020 - ] 

    Result: 

    A 

    See step  4

  4. READ VALUE USING TECHSTREAM (FR, FL, RR, RL WHEEL SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON (READY).
    3. Turn the Techstream on.
    4. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / FR Wheel Speed, FL Wheel Speed, RR Wheel Speed and RL Wheel Speed.

      Chassis > ABS/VSC/TRAC > Data List 

      Tester Display
      FR Wheel Speed
      FL Wheel Speed
      RR Wheel Speed
      RL Wheel Speed
    5. Read the values displayed on the Techstream.

      Standard

      Tester 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
      WARNING:

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

      HINT: 

      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 ignition switch off.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    INSPECT FRONT OR REAR SPEED SENSOR. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 12/2021]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - ] 

    Result: 

    OK 

    See step  5

  5. READ VALUE USING TECHSTREAM (VEHICLE SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON (READY).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Hybrid Control / Data List / Vehicle Speed.

      Powertrain > Hybrid Control > Data List 

      Tester Display
      Vehicle Speed
    5. Read the value of "Vehicle Speed" displayed on the Techstream.

      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
      WARNING:

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

      HINT: 

      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 ignition switch off.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    INSPECT ELECTRONICALLY CONTROLLED BRAKE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 12/2021]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - ] 

    Result: 

    OK 

    See step  6

  6. READ VALUE USING TECHSTREAM (DECELERATION SENSOR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON (READY).
    3. Turn the Techstream on.
    4. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / Deceleration Sensor and Deceleration Sensor2.

      Chassis > ABS/VSC/TRAC > Data List 

      Tester Display
      Deceleration Sensor
      Deceleration Sensor2
    5. Read the value displayed on the Techstream.

      Standard

      Tester Display Condition Specified Condition
      Deceleration Sensor
      Deceleration Sensor2      		 During deceleration Value changes with vehicle speed
      During acceleration Value changes with vehicle speed
      WARNING:

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

      HINT: 

      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 ignition switch off.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE). Refer to  PROBLEM SYMPTOMS TABLE [06/2020 - ] 

    Result: 

    NG 

    INSPECT YAW RATE SENSOR. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 12/2021]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - ] 

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

      HINT: 

      Drive Start Control Activation Conditions 

      Shift control 

      1. 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 lever is moved from P to (D or S) or R.
      • Pattern B (When all of the following conditions are met, control starts.)
        • The accelerator pedal is open by approximately 1/5 or more.
        • The shift lever is moved from R to (D or S), from (D or S) or N to R.
          GTY905864Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Items Controlled
        • Hybrid system output is restricted.
      • Deactivation Conditions
        • The accelerator pedal is released.
        • The shift lever is in P or N.

      Reverse control 

      1. Activation conditions
      • The shift lever is in R.
      • The accelerator pedal is depressed excessively.
        GTY993411Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Items Controlled
        • Hybrid system output is restricted.
      • Deactivation Conditions
        • The accelerator pedal is released.
        • The shift lever is moved to any position other than R.

      HINT: 

      • The hybrid system output restricted level differs between Pattern A, Pattern B and Reverse control.
      • During Shift control or Reverse control, hybrid system output is adjusted based on the road gradient.

      Result

      Result Proceed to
      Not performed A
      Performed B

    Result: 

    B 

    SYSTEM NORMAL 

    HINT: 

    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.

    Result: 

    A 

    See step  8

  8. CHECK DTC OUTPUT (HEALTH CHECK) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to.
    3. Turn the Techstream 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 ignition switch off.

    Result: 

    B 

    GO TO  DIAGNOSTIC TROUBLE CODE CHART [06/2020 - ] 

    Result: 

    A 

    See step  9

  9. INSPECT SHIFT LEVER POSITION SENSOR 
    1. Inspect the shift lever position sensor.

      Refer to INSPECTION [11/2018 - ]

      Result

      Result  Proceed to
      Normal A
      Abnormal B

    Result: 

    B 

    REPLACE SHIFT LEVER POSITION SENSOR. Refer to  REMOVAL [11/2018 - ] 

    Result: 

    A 

    See step  10

  10. READ VALUE USING TECHSTREAM (ACCELERATOR POSITION SENSOR NO. 1 VOLTAGE %, ACCELERATOR POSITION SENSOR NO. 2 VOLTAGE %) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Hybrid Control / Data List / Accelerator Position Sensor No. 1 Voltage %, Accelerator Position Sensor No. 2 Voltage %.

      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 Techstream.

      OK

      Condition Specified Condition
      Accelerator Pedal Released → Depressed Values smoothly change following accelerator pedal operation
    6. Turn the ignition switch off.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE). Refer to  PROBLEM SYMPTOMS TABLE [06/2020 - ] 

    Result: 

    NG 

    REPLACE ACCELERATOR PEDAL(W/SENSOR) ROD ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

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