ELECTRONIC 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 ignition switch on (IG) and park the vehicle on level ground. Check the freeze frame data by using intelligent tester.

  1. Connect the intelligent tester to the DLC3.

  2. Turn the ignition switch on (IG) and check the freeze frame data by following the prompts on the intelligent tester display.

    Power steering ECU:  
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Reference Value
    Meter Vehicle Velocity
    		Vehicle speed from meter:
    Min.: 0 km/h (0 mph)
    Max.: 300 km/h (187.5 mph)
    		Vehicle stopped
    		0 km/h (0 mph)
    Vehicle driven at constant speed
    		No significant fluctuation
    Engine Revolution
    		Show the 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
    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
    Steering Angle Velocity
    		Steering angle speed:
    Min.: -32768 deg/s
    Max.: 32767 deg/s
    		Steering wheel is turned
    		Value changes in proportion to steering effort
    Thermistor Temperature
    		ECU substrate temperature:
    Min.: -40°C
    Max.: 150°C
    		Ignition switch on (IG)
    		-
    PIG Power Supply
    		Power source voltage to activate motor:
    Min.: 0 V
    Max.: 20.1531 V
    		Power steering in operation
    		10 to 14 V
    IG Power Supply
    		ECU power source voltage:
    Min.: 0 V
    Max.: 20.1531 V
    		Ignition switch on (IG)
    		10 to 14 V
    Steering Wheel Torque
    		Steering wheel torque:
    Min.: -327.68 Nm
    Max.: 7 Nm
    		-
    		-
    Motor Rotation Angle
    		Motor rotation angle:
    Min.: 0 deg
    Max.: 1441.77 deg
    		Power steering in operation
    		During steering operation, motor rotation angle value changes from 0 to 360°
    Motor Voltage
    		Motor power supply voltage:
    Min.: 0 V
    Max.: 98 V
    		Power steering in operation
    		-
    Motor Terminal Volt (U)
    		Motor terminal voltage (U phase):
    Min.: 0 V
    Max.: 98 V
    		Engine running and steering wheel turned
    		When the steering wheel is turned, a voltage between 1 V and approximately 1 V less than the battery voltage is displayed.
    Motor Terminal Volt (V)
    		Motor terminal voltage (V phase):
    Min.: 0 V
    Max.: 98 V
    		Engine running and steering wheel turned
    		When the steering wheel is turned, a voltage between 1 V and approximately 1 V less than the battery voltage is displayed.
    Motor Terminal Volt (W)
    		Motor Terminal voltage (W phase):
    Min.: 0 V
    Max.: 98 V
    		Engine running and steering wheel turned
    		When the steering wheel is turned, a voltage between 1 V and approximately 1 V less than the battery voltage is displayed.
    Torque Sensor 1 Output
    		Torque sensor 1 output voltage/
    Min.: 0 V
    Max.: 5 V
    		2.3 to 2.7 V
    		Steering wheel is not turned (without load)
    2.5 to 4.04 V
    		Steering wheel is turned to the right when the vehicle is stopped
    0.95 to 2.5 V
    		Steering wheel is turned to the left when the vehicle is stopped
    Torque Sensor 2 Output
    		Torque sensor 2 output voltage/
    Min.: 0 V
    Max.: 5 V
    		2.3 to 2.7 V
    		Steering wheel is not turned (without load)
    0.95 to 2.5 V
    		Steering wheel is turned to the right when the vehicle is stopped
    2.5 to 4.04 V
    		Steering wheel is turned to the left when the vehicle is stopped
    Battery Voltage
    		Battery voltage:
    Min.: 0 V
    Max.: 25.5 V
    		-
    		10 to 14 V
    PS Assist Signal
    		Power steering assist signal:
    ON or OFF
    		-
    		-