POWER STEERING SYSTEM FREEZE FRAME DATA


  1. FREEZE FRAME DATA

    Note


    • It is difficult to show the specified values (judgment values) clearly because freeze frame data values change significantly due to differences in measurement conditions, surroundings, or vehicle conditions. For this reason, there may be a problem even when the values are within specifications.

    • Turn the power switch ON (IG) and park the vehicle on level ground. Check the freeze frame data by using the intelligent tester.


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch ON (IG) and check the freeze frame data by following the prompts on the tester screen.

      EMPS
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Meter Vehicle Velocity

      Vehicle speed from meter/

      Min.: 0.0 km/h (0 mph), Max.: 300.0 km/h (186 mph)

      1. Vehicle is stopped: 0 km/h (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°C, Max.: 150°C

      		 Equivalent to ambient ECU substrate temperature -
      IG Power Supply

      ECU power source voltage/

      Min.: 0.0000 V, Max.: 20.1531 V

      		 Power switch ON (IG): 11 to 14 V -
      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 Nm, Max.: 7.00 Nm

      		 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.: 98.000 V

      		 Power switch ON (READY): 30 to 50 V -
      Motor Terminal Volt(U)

      Motor terminal voltage (U phase)/

      Min.: 0.000 V, Max.: 98.000 V

      		 Power steering is in operation: 0 to 50 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.: 98.000 V

      		 Power steering is in operation: 0 to 50 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.: 98.000 V

      		 Power steering is in operation: 0 to 50 V When malfunction occurs, problem may be in power steering motor
      Battery Voltage

      Auxiliary battery voltage/

      Min.: 0.0 V, Max.: 25.5 V

      		 Power switch ON (IG): 11 to 14 V -
      HV Battery Voltage

      HV battery voltage/

      Min.: 0 V, Max.: 510 V

      		 Power switch ON (READY): 230 to 510 V -
      Power Source OK Sig

      HV battery use permission signal/

      OK or NG

      		 OK or NG -
      Break Gate Request Sig

      HV battery stop request signal/

      OK or BREAK

      		 OK or BREAK -
      DC-DC Warning Signal

      Power steering converter warning signal/

      OK or NG

      		 OK or NG -
      PS Assist Signal

      Power steering assist signal/

      ON or OFF

      		 ON or OFF -
      Ready Status

      Ready status/

      Ready or OFF

      		 Ready 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