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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. Turn the ignition switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Enter the following menus: Chassis / EMPS / Data List.
    6. According to the display on the Techstream, read the Data List.
      EMPS

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Meter Vehicle Velocity Vehicle speed from meter:
      Min.: 0 km/h (0 mph)
      Max.: 300 km/h (187.5 mph)      		 0 km/h (0 mph): Vehicle stopped -
      No significant fluctuation: Vehicle driven at a constant speed -
      Engine Revolution Engine speed:
      Min.: 0 RPM
      Max.: 12800 RPM      		 No significant fluctuation: Engine is running at a constant speed -
      Motor Actual Current Amount of current to motor:
      Min.: -327.68 A
      Max.: 327.67 A      		 Value changes in proportion to steering effort: Power steering is in operation -
      Command Value Current Demanded amount of current to motor:
      Min.: -327.68 A
      Max.: 327.67 A      		 Value changes in proportion to steering effort: Power steering is in operation -
      Steering Angle Velocity Steering angle speed:
      Min.: -32768 deg/s
      Max.: 32767 deg/s      		 Value changes in proportion to steering effort: Steering wheel is turned -
      Thermistor Temperature ECU substrate temperature:
      Min.: -50°C (-58°F)
      Max.: 150°C (302°F)      		 -50°C (-58°F) to 150°C (302°F): Ignition switch ON -
      PIG Power Supply Power source voltage to active motor:
      Min.: 0 V
      Max.: 20.1531 V      		 11 to 14 V: Power steering is in operation -
      IG Power Supply ECU power source voltage:
      Min.: 0 V
      Max.: 20.1531 V      		 11 to 14 V: Ignition switch ON -
      Steering Angle Sens Sig Steering angle sensor signal state: OK, NG (1), NG (2) or NG (3) OK: Steering angle sensor signal is received
      NG (1): Steering angle sensor learning has not completed
      NG (2): Steering sensor abnormal
      NG (3): Communication error      		 -
      Steering Wheel Torque Steering wheel torque:
      Min.: -327.68 N*m
      Max.: 7 N*m      		 Value changes in proportion to steering effort: Power steering is in operation -
      Motor Rotation Angle Motor rotation angle:
      Min.: 0 deg
      Max.: 1441.77 deg      		 Motor rotation angle value changes from 0 to 360 deg: Steering wheel is turned -
      Command Val Current 2 Demanded amount of current to motor:
      Min.: -327.68 A
      Max.: 327.67 A      		 Value changes in proportion to steering effort: Power steering is in operation -
      PIG2 Voltage Coil rear pressurization voltage:
      Min.: 0 V
      Max.: 98 V      		 Approximately 27 V: Steering wheel is not turned -
      Value changes within 4 to 35 V range: Steering wheel is turned -
      Motor Voltage Motor power supply voltage:
      Min.: 0 V
      Max.: 98 V      		 Approximately 27 V: Steering wheel is not turned -
      Value changes within 4 to 35 V range: Steering wheel is turned -
      Motor Terminal Volt (U) Motor terminal voltage (U phase):
      Min.: 0 V
      Max.: 98 V      		 Value changes within 4 to 35 V range: Steering wheel is turned -
      Motor Terminal Volt (V) Motor terminal voltage (V phase):
      Min.: 0 V
      Max.: 98 V      		 Value changes within 4 to 35 V range: Steering wheel is turned -
      Motor Terminal Volt (W) Motor terminal voltage (W phase):
      Min.: 0 V
      Max.: 98 V      		 Value changes within 4 to 35 V range: Steering wheel is turned -
      Torque Sensor 1 Output Torque sensor voltage:
      Min.: 0 V
      Max.: 4.9725 V      		 2.3 to 2.7 V: Steering wheel is not turned (without load) -
      2.5 to 3.8 V: Steering wheel turned to right with vehicle stopped -
      1.2 to 2.5 V: Steering wheel turned to left with vehicle stopped -
      Torque Sensor 2 Output Torque sensor voltage:
      Min.: 0 V
      Max.: 4.9725 V      		 2.3 to 2.7 V: Steering wheel is not turned (without load) -
      1.2 to 2.5 V: Steering wheel turned to right with vehicle stopped -
      2.5 to 3.8 V: Steering wheel turned to left with vehicle stopped -
      TRQ1 Zero Point Value Torque sensor voltage:
      Min.: 0 V
      Max.: 4.9725 V      		 Values differ depending on vehicle: Steering wheel is not turned -
      TRQ2 Zero Point Value Torque sensor voltage:
      Min.: 0 V
      Max.: 4.9725 V      		 Values differ depending on vehicle: Steering wheel is not turned -
      IG ON/OFF Times Number of times of ignition switch ON/OFF after fail detection:
      Min.: 0 times
      Max.: 65535 times      		 - -
      Motor Overheat Record Continuous overheat prevention control record:
      Rec or Unrec      		 Unrec -
      Motor Lo Power Record PIG power source voltage drop record:
      Rec or Unrec      		 Unrec -
      Eng Rev Inter Record Record of engine speed signal interruption:
      Rec or Unrec      		 Unrec -
      Str Angle Inter Record Record of steering sensor signal interruption occurrence display:
      Rec or Unrec      		 Unrec -
      Spd Sig Invalid Record Record of vehicle speed signal invalid:
      Rec or Unrec      		 Unrec -
      Battery Voltage Lo Record Battery voltage drop record:
      Min.: 0 times
      Max.: 65535 times      		 0 times -
      PS Assist Signal Power steering assist signal:
      ON or OFF      		 OFF: No steering load (in neutral position) -
      ON: Steering wheel is turned -
      The Number of DTCs Number of detected DTCs when freeze frame data stored:
      Min.: 0
      Max.: 255      		 0 -
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