POWER STEERING SYSTEM > FREEZE FRAME DATA

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FREEZE FRAME DATA

NOTICE:
  1. 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.
  2. Turn the power switch on (IG) and park the vehicle on level ground. Check the freeze frame data by using the intelligent tester.

  1. Turn the power switch off.

  2. Connect the intelligent tester to the DLC3.

  3. Turn the power switch on (IG).

  4. Turn the intelligent tester on.

  5. Check the freeze frame data on the intelligent tester.

    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
    		ECU power source voltage/
    Min.: 0 V
    Max.: 20.1531 V
    		9 to 16 V
    		Power switch on (IG)
    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 not being 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 right 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
    Ready Status
    		Ready status/
    Ready or OFF
    		Ready or OFF
    		-