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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 power switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the power switch on (IG).
    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 (186.4 mph)      		 0 km/h (0 mph) Power switch on (READY) and vehicle stopped
      No significant fluctuation Power switch on (READY) and vehicle driven 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
      - The value rises in left turn
      - The value descends in right turn      		 Power switch on (READY) and steering wheel being turned
      Command Value Current Demanded amount of current to motor/
      Min.: -327.68 A
      Max.: 327.67 A      		 Value changes in proportion to steering effort
      - The value rises in left turn
      - The value descends in right turn      		 Power switch on (READY) and steering wheel being turned
      Steering Angle Velocity Steering angle speed/
      Min.: -32768 deg/s
      Max.: 32767 deg/s      		 Value changes in proportion to steering speed
      - The value rises in left turn
      - The value descends in right turn      		 Power switch on (READY) and steering wheel being turned
      Thermistor Temperature ECU substrate temperature/
      Min.: -50°C (-58°F)
      Max.: 150°C (302°F)      		 -50°C to 150°C (-58°F to 302°F) Power switch on (READY)
      PIG Power Supply Power source voltage to active motor/
      Min.: 0 V
      Max.: 20.1531 V      		 9 to 16 V Power switch on (READY) and steering wheel being turned
      IG Power Supply IG power source voltage/
      Min.: 0 V
      Max.: 20.1531 V      		 9 to 16 V Power switch on (IG)
      Steering Angle Sens Sig Steering angle sensor signal state/
      OK or NG(1) or NG(2) or NG(3)      		 OK: Steering angle sensor signal received
      NG(1): Learning has not completed
      NG(2): Steering sensor abnormal
      NG(3): Communication error      		 -
      Steering Wheel Torque Steering wheel torque/
      Min.: -327.68 Nm
      Max.: 7 Nm      		 Value changes in proportion to steering effort
      - The value rises in left turn
      - The value descends in right turn      		 Power switch on (READY) and steering wheel being turned
      Motor Rotation Angle Motor rotation angle/
      Min.: 0 deg
      Max.: 1441.77 deg      		 During steering operation, motor rotation angle value changes from 0 to 360° Power switch on (READY) and steering wheel being 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 switch on (READY) and steering wheel being turned
      PIG2 Voltage Coil rear pressurization voltage/
      Min.: 0 V
      Max.: 98 V      		 9 to 16 V Power switch on (READY) and steering wheel being not turned
      Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Motor Voltage Motor power supply voltage/
      Min.: 0 V
      Max.: 98 V      		 Approximately 30 V Power switch on (READY) and steering wheel not being turned
      Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Motor Terminal Volt (U) Motor terminal voltage (U phase)/
      Min.: 0 V
      Max.: 98 V      		 Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Motor Terminal Volt (V) Motor terminal voltage (V phase)/
      Min.: 0 V
      Max.: 98 V      		 Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Motor Terminal Volt (W) Motor terminal voltage (W phase)/
      Min.: 0 V
      Max.: 98 V      		 Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Torque Sensor 1 Output Torque sensor voltage/
      Min.: 0 V
      Max.: 4.9725 V      		 2.3 to 2.7 V Power switch on (READY) and steering wheel not turned (without load)
      2.5 to 3.8 V Power switch on (READY) and steering wheel being turned to the right with vehicle stopped
      1.2 to 2.5 V Power switch on (READY) and steering wheel being turned to the left with vehicle stopped
      Torque Sensor 2 Output Torque sensor voltage/
      Min.: 0 V
      Max.: 4.9725 V      		 2.3 to 2.7 V Power switch on (READY) and steering wheel not turned (without load)
      1.2 to 2.5 V Power switch on (READY) and steering wheel being turned to the right with vehicle stopped
      2.5 to 3.8 V Power switch on (READY) and steering wheel being turned to the left with vehicle stopped
      TRQ1 Zero Point Value Torque sensor voltage/
      Min.: 0 V
      Max.: 4.9725 V      		 Values differ depending on vehicle Power switch on (READY) and steering wheel not being turned
      TRQ2 Zero Point Value Torque sensor voltage/
      Min.: 0 V
      Max.: 4.9725 V      		 Values differ depending on vehicle Power switch on (READY) and steering wheel not being turned
      IG ON/OFF Times Number of times of power switch ON/OFF after fail detection/
      Min.: 0 times
      Max.: 65535 times      		 - This value indicates the number of times of power switch ON/OFF after the latest DTC detection.
      Motor Overheat Record Continuous overheat prevention control record/
      Unrec or Rec      		 Unrec Unrec: Unrecorded
      Rec: Recorded
      Motor Lo Power Record PIG power source voltage drop record/
      Unrec or Rec      		 Unrec Unrec: Unrecorded
      Rec: Recorded
      Eng Rev Inter Record Record of READY ON signal interruption/
      Unrec or Rec      		 Unrec Unrec: Unrecorded
      Rec: Recorded
      Str Angle Inter Record Record of steering sensor signal interruption occurrence display/
      Unrec or Rec      		 Unrec Unrec: Unrecorded
      Rec: Recorded
      Spd Sig Invalid Record Record of vehicle speed signal invalid/
      Unrec or Rec      		 Unrec Unrec: Unrecorded
      Rec: Recorded
      Battery Voltage Lo Record Auxiliary battery voltage reduction history/
      Min.: 0 times, Max.: 65535 times      		 0 to 65535 -
      Ready Status Ready status/
      Ready or OFF      		 Ready or OFF -
      The Number of DTCs Number of detected DTCs when freeze frame data stored/
      Min.: 0
      Max.: 255      		 0 to 255 -
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