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Data List/Active Test

  1. DATA LIST 

    HINT: 

    Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
    1. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the Techstream to the OBD II scan tool to the DLC3.
    4. Turn the engine switch on.
    5. Turn the Techstream on.
    6. Enter the following menus: CHASSIS/DATA LIST/
    7. According to the display on the tester, read the "DATA LIST".
      EMPS

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Meter Vehicle Velocity Vehicle speed from meter/
      Min.: 0.0 km/h (0.0 mph), Max.: 300.0 km/h (186.0 mph)
      1. Vehicle is stopped: 0.0 km/h (0.0 mph)
      2. Vehicle is driven at a constant speed: No significant fluctuation
      		 -
      Engine Revolution Engine revolution/
      Min.: 0 rpm, Max.: 12800 rpm      		 Engine is running at a constant speed: No significant fluctuation -
      Motor Actual Current Amount of current to motor/
      Min.: -327.68 A, Max.: 327.67 A      		 Power steering is in operation: Value changes in proportion to steering effort When malfunction occurs, problem may be in steering system
      Command Value Current Demanded amount of current to motor/
      Min.: -327.68 A, Max.: 327.67 A      		 Power steering is in operation: Value changes in proportion to steering effort When malfunction occurs, problem may be in steering system
      Steering Angle Velocity Steering angle speed/
      Min.: -32768 deg/s, Max.: 32767 deg/s      		 Steering wheel is turned: Value changes in proportion to steering speed -
      Thermistor Temperature ECU substrate temperature/
      Min.: -40.0°C, Max.: 150.0°C      		 Equivalent to ambient ECU substrate temperature -
      IG Power Supply ECU power source voltage/
      Min.: 0.0000 V, Max.: 20.1531 V      		 Engine switch on (IG): 11 to 14 V -
      Steering Angle Sens Sig Steering angle sensor signal status/
      OK or NG      		 OK or NG -
      Torque Sensor 1 output Torque sensor 1 rotation angle/
      Min.: 0.000 deg, Max.: 1441.770 deg      		 Steering wheel is turned: Value changes from 0 to 360° every 22.5° of steering angle When malfunction occurs, problem may be in torque sensor
      Torque Sensor 2 output Torque sensor 2 rotation angle/
      Min.: 0.000 deg, Max.: 1441.770 deg      		 Steering wheel is turned: Value changes from 0 to 360° every 22.5° of steering angle When malfunction occurs, problem may be in torque sensor
      TRQ1 Zero Point Value Zero point value of torque sensor 1/
      Min.: 0.000 deg, Max.: 1441.770 deg      		 Steering wheel is not turned
      (without load)      		 When malfunction occurs, problem may be in torque sensor
      TRQ2 Zero Point Value Zero point value of torque sensor 2/
      Min.: 0.000 deg, Max.: 1441.770 deg      		 Steering wheel is not turned
      (without load)      		 When malfunction occurs, problem may be in torque sensor
      Steering Wheel Torque Steering torque/
      Min.: -327.68 N*m, Max.: 7.00 N*m      		 Steering wheel is turned: Value changes in proportion to steering effort When malfunction occurs, problem may be in torque sensor
      Motor Rotation Angle Motor rotation angle/
      Min.: 0.000 deg, Max.: 1441.770 deg      		 Steering wheel is turned: Value changes from 0 to 360° every 5° of steering angle When malfunction occurs, problem may be in rotation angle sensor
      Command Val Current 2 Amount of current demanded by motor 2/
      Min.: -327.68 A, Max.: 327.67 A      		 Power steering is in operation: Value changes in proportion to steering effort When malfunction occurs, problem may be in power steering motor.
      Motor Voltage Motor power source voltage/
      Min.: 0.000 V, Max.: 45.955 V      		 Power steering is in operation: 2 to 48 V -
      Motor Terminal Volt (U) Motor terminal voltage (U phase)/
      Min.: 0.000 V, Max.: 46.667 V      		 Power steering is in operation: 2 to 48 V When malfunction occurs, problem may be in power steering motor.
      Motor Terminal Volt (V) Motor terminal voltage (V phase)/
      Min.: 0.000 V, Max.: 46.667 V      		 Power steering is in operation: 2 to 48 V When malfunction occurs, problem may be in power steering motor.
      Motor Terminal Volt (W) Motor terminal voltage (W phase)/
      Min.: 0.000 V, Max.: 46.667 V      		 Power steering is in operation: 2 to 48 V When malfunction occurs, problem may be in power steering motor.
      IG ON/OFF Times Number of times IG switch is turned on after DTC detection/
      Min.: 0 times, Max.: 65535 times      		 0 to 65535 -
      Motor Overheat Record Continuous overheat prevention control record/
      Rec or Unrec      		 Rec or Unrec -
      Motor Lo Power Record PIG power source voltage drop record/
      Rec or Unrec      		 Rec or Unrec -
      Eng Rev Inter Record Record of engine revolution signal interruption/
      Rec or Unrec      		 Rec or Unrec -
      Str Angle Inter Record Record of steering angle sensor signal interruption/
      Rec or Unrec      		 Rec or Unrec -
      Spd Sig Invalid Record Record of vehicle speed signal invalid/
      Rec or Unrec      		 Rec or Unrec -
      Battery Voltage Lo Record Past occurrences of low battery voltage/
      Min.: 0 times, Max.: 65535 times      		 0 to 65535 -
      Battery Voltage Battery voltage/
      Min.: 0.0 V, Max.: 25.5 V      		 11 to 14 V -
      DC-DC Warning Signal 42 V DC/DC converter warning signal/
      OK or NG      		 OK or NG -
      PS Assist Signal Power steering assist signal/
      ON or OFF      		 ON or OFF -
      Motor Actual Current 2 Amount of current to motor 2/
      Min.: -327.68 A, Max.: 327.67 A      		 Power steering is in operation: Value changes in proportion to steering effort When malfunction occurs, problem may be in power steering motor.
      The Number of DTCs Number of detected DTCs when freeze frame data is stored/
      Min.: 0, Max.: 255      		 0 to 255 -

      HINT: 

      • With the vehicle stopped or driving very slowly, if the steering wheel is turned repeatedly or turned to a lock position and driven for an extended period of time, the power assistance amount is decreased to prevent overheating of the motor and ECU. If this occurs, idle the engine and do not turn the steering wheel for approximately 10 minutes to return the power assistance to normal.
      • If the battery has not been recharged enough or the voltage drops temporarily, the power assistance amount may be decreased and the P/S warning light may be illuminated. If this occurs, the power assistance returns to normal when the battery returns to normal. When troubleshooting malfunctions, use the Techstream to check for power load malfunctions through the electric power control system's load control history.
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