SFI SYSTEM(w/ Canister Pump Module) Drive Start Control System

DESCRIPTION

• The drive start control is controlled by the ECM.

  If the ECM 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.

  

CAUTION / NOTICE / HINT

PROCEDURE

1. SYMPTOM CONFIRMATION

   
   

   1. Interview the customer to confirm the problem.

      Result
      Result Proceed to Hunting A Hesitation/poor acceleration B

   
   

   B

   PAST ACTIVATION CONFIRMATION Click here

   A

2. PAST ACTIVATION CONFIRMATION

   
   

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

      Tech Tips

      Drive Start Control Activation Conditions

      Condition 1 (Reverse control)

      Activation conditions

      
      

      • The shift lever is in R.

      • The accelerator pedal is depressed.

        

      Items Controlled

      
      

      • Driving torque is restricted.

      Deactivation Conditions

      
      

      • The shift lever is moved to any position other than R.

      • The accelerator pedal is released.

      Condition 2 (Shift control a)

      Activation conditions

      
      

      • The shift lever is moved from P to any forward position (D, S or M) or R.

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

        

      Items Controlled

      
      

      • Driving torque is restricted.

      Deactivation Conditions

      
      

      • The shift lever is in P or N.

      • The accelerator pedal is released.

      Condition 3 (Shift control b)

      Activation conditions

      
      

      • The shift lever is moved from R to any forward position (D, S or M), any forward position (D, S or M) to R, or N to R.

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

        

      Items Controlled

      
      

      • Driving torque is restricted.

      Deactivation Conditions

      
      

      • The shift lever is in P or N.

      • The accelerator pedal is released.

      Tech Tips

      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

   
   

   B

   SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE) Click here

   A

3. CHECK DTC OUTPUT

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine 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

   
   

   B

   GO TO DTC CHART

   A

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

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the GTS on.

   4. Start the engine.

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

      
      Chassis > ABS/VSC/TRC > Data List

      Tester Display
      FR Wheel Speed
      FL Wheel Speed
      RR Wheel Speed
      RL Wheel Speed

   6. Read the value displayed on the GTS.

      Standard
      GTS Display Condition Specified Condition FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed Vehicle stopped, engine running 0 km/h (0 mph) Vehicle being driven at constant speed between 16.1 to 64.4 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.

      Tech Tips

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

      Result
      Proceed to OK NG

   
   

   NG

   INSPECT FRONT OR REAR SPEED SENSOR

   OK

5. READ VALUE USING GTS (OUTPUT AXIS SPEED)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the GTS on.

   4. Start the engine.

   5. Enter the following menus: Powertrain / Engine / Data List / Output Axis Speed.

      
      Powertrain > Engine > Data List

      Tester Display
      Output Axis Speed

   6. Read the value displayed on the GTS.

      Standard
      GTS Display Condition Specified Condition Output Axis Speed Vehicle stopped, engine running 0 rpm Vehicle being driven at constant speed between 16.1 to 64.4 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.

      Tech Tips

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

      Result
      Proceed to OK NG

   
   

   NG

   INSPECT TRANSMISSION REVOLUTION SENSOR for 2WD: Click here INSPECT TRANSMISSION REVOLUTION SENSOR for AWD: Click here

   OK

6. READ VALUE USING GTS (DECELERATION SENSOR)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the GTS on.

   4. Start the engine.

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

      
      Chassis > ABS/VSC/TRC > Data List

      Tester Display
      Deceleration Sensor
      Deceleration Sensor2

   6. Read the value displayed on the GTS.

      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.

      Tech Tips

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

      Result
      Proceed to OK NG

   
   

   NG

   INSPECT YAW RATE AND ACCELERATION SENSOR Click here

   OK

7. READ VALUE USING GTS (STEERING ANGLE SENSOR)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the GTS on.

   4. Start the engine.

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

      
      Chassis > ABS/VSC/TRC > Data List

      Tester Display
      Steering Angle Sensor

   6. Read the value displayed on the GTS.

      Standard
      GTS Display Condition Specified Condition Steering Angle Sensor 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.

      Tech Tips

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

      Result
      Proceed to OK NG

   
   

   OK

   SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE) Click here

   NG

   INSPECT STEERING ANGLE SENSOR Click here

8. PAST ACTIVATION CONFIRMATION

   
   

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

      Tech Tips

      Drive Start Control Activation Conditions

      Condition 1 (Reverse control)

      Activation conditions

      
      

      • The shift lever is in R.

      • The accelerator pedal is depressed.

        

      Items Controlled

      
      

      • Driving torque is restricted.

      Deactivation Conditions

      
      

      • The shift lever is moved to any position other than R.

      • The accelerator pedal is released.

      Condition 2 (Shift control a)

      Activation conditions

      
      

      • The shift lever is moved from P to any forward position (D, S or M) or R.

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

        

      Items Controlled

      
      

      • Driving torque is restricted.

      Deactivation Conditions

      
      

      • The shift lever is in P or N.

      • The accelerator pedal is released.

      Condition 3 (Shift control b)

      Activation conditions

      
      

      • The shift lever is moved from R to any forward position (D, S or M), any forward position (D, S or M) to R, or N to R.

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

        

      Items Controlled

      
      

      • Driving torque is restricted.

      Deactivation Conditions

      
      

      • The shift lever is in P or N.

      • The accelerator pedal is released.

      Tech Tips

      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

      Tech Tips

      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.

   
   

   B

   SYSTEM NORMAL

   A

9. CHECK DTC OUTPUT

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine 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

   
   

   B

   GO TO DTC CHART

   A

10. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    
    

    1. Inspect the park/neutral position switch assembly.

       for 2WD: Click here

       for AWD: Click here

       Result
       Result Proceed to Normal A Abnormal B

    
    

    B

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for 2WD: Click here REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for AWD: Click here

    A

11. READ VALUE USING GTS (ACCELERATOR PEDAL POSITION SENSOR)

    
    

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Data List / Accelerator Position Sensor No.1 Voltage % and Accelerator Position Sensor No.2 Voltage %.

       
       Powertrain > Engine > Data List

       Tester Display
       Accelerator Position Sensor No.1 Voltage %
       Accelerator Position Sensor No.2 Voltage %

    5. Read the value displayed on the GTS.

       OK
       GTS Display Condition Specified Condition Accelerator Position Sensor No.1 Voltage % Accelerator Pedal Released → Depressed Values smoothly change following accelerator pedal operation Accelerator Position Sensor No.2 Voltage %

       Tech Tips

       For numerical values of Accelerator Position Sensor No.1 Voltage % and Accelerator Position Sensor No.2 Voltage %, refer to the Data List.

       Click here

       Result
       Proceed to OK NG

    
    

    OK

    SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE) Click here

    NG

    REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY Click here