Lexus NX: Data List / Active Test

Meter Vehicle Velocity

Vehicle speed from meter

Min.: 0.0 km/h (0.0 mph)

Max.: 300.0 km/h (186.4 mph)

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Wheel Speed Right

Rear right wheel speed

Min.: 0 km/h (0 mph)

Max.: 255 km/h (158 mph)

-

Wheel Speed Left

Rear left wheel speed

Min.: 0 km/h (0 mph)

Max.: 255 km/h (158 mph)

-

Engine Revolution

Engine speed

Min.: 0 rpm

Max.: 12800 rpm

No significant fluctuation

Engine running at a constant speed

Motor Actual Current

Amount of current to motor

Min.: -327.68 A

Max.: 327.67 A

Power switch on (READY) and steering wheel being turned: The value increases

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Command Value Current

Requested current to motor

Min.: -327.68 A

Max.: 327.67 A

Power switch on (READY) and steering wheel being turned: Value changes in proportion to steering effort

-The value increases when turning left and decreases when turning right

-

Steering Angle Velocity

Steering angle speed

Min.: -32768 deg/s

Max.: 32767 deg/s

Power switch on (READY) and steering wheel being turned: Value changes in proportion to steering speed

-The value increases when turning left and decreases when turning right

-

Thermistor Temperature

ECU substrate temperature

Min.: -50.0°C (-58.0°F)

Max.: 150.0°C (302.0°F)

Power switch on (READY): -50°C to 150°C (-58°F to 302°F)

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PIG Power Supply

Power source voltage to active motor

Min.: 0.0000 V

Max.: 20.1531 V

Always: 9 to 16 V

-

IG Power Supply

IG power source voltage

Min.: 0.0000 V

Max.: 20.1531 V

Power switch on (IG): 9 to 16 V

-

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): The learning has not completed

NG(2): Steering sensor abnormal

NG(3): Communication error

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Steering Wheel Torque

Steering wheel torque

Min.: -327.68 Nm

Max.: 7.00 Nm

Power switch on (READY) and steering wheel being turned: Value changes in proportion to steering effort

-The value increases when turning left and decreases when turning right

-

Motor Rotation Angle

Motor rotation angle

Min.: 0.000 deg

Max.: 1441.770 deg

Power switch on (READY) and steering wheel being turned: During steering operation, motor rotation angle value changes from 0 to 360 deg

-

Command Val Current 2

Requested current to motor

Min.: -327.68 A

Max.: 327.67 A

Power switch on (READY) and steering wheel being turned: Value changes in proportion to steering effort

-

Motor Voltage

Motor power supply voltage

Min.: 0.000 V

Max.: 98.000 V

Power switch on (READY) and steering wheel being turned: 9 to 16 V

-

Motor Terminal Volt(U)

Motor terminal voltage (A phase)

Min.: 0.000 V

Max.: 98.000 V

Power switch on (READY) and steering wheel being turned: Value changes within 4 to 35 V range

-

Motor Terminal Volt(V)

Motor terminal voltage (B phase)

Min.: 0.000 V

Max.: 98.000 V

Power switch on (READY) and steering wheel being turned: Value changes within 4 to 35 V range

-

Motor Terminal Volt(W)

Motor terminal voltage (C phase)

Min.: 0.000 V

Max.: 98.000 V

Power switch on (READY) and steering wheel being turned: Value changes within 4 to 35 V range

-

Torque Sensor 1 Output

Torque sensor voltage

Min.: 0.0000 V

Max.: 4.9725 V

-

Torque Sensor 2 Output

Torque sensor voltage

Min.: 0.0000 V

Max.: 4.9725 V

-

TRQ1 Zero Point Value

Torque sensor voltage

Min.: 0.0000 V

Max.: 4.9725 V

2.3 to 2.7 V: Power switch on (READY) and steering wheel not being turned (without load)

-

TRQ2 Zero Point Value

Torque sensor voltage

Min.: 0.0000 V

Max.: 4.9725 V

2.3 to 2.7 V: Power switch on (READY) and steering wheel not being turned (without load)

-

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 engine speed 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

Number of times auxiliary battery voltage is low

Min.: 0 times

Max.: 65535 times

0 to 65535

When cranking occurs during assist, the count may increase.

PS Assist Signal

Power steering assist signal

ON or OFF

-

Ready Status

Ready status

OFF or Ready

-

Motor Actual Current 2

Amount of current to motor

Min.: -327.68 A

Max.: 327.67 A

Power switch on (READY) and steering wheel being turned: Value changes in proportion to steering effort

-

Rotation Angle Sens Avg(SIN)

Rotation angle sensor average (SIN)

Min.: 0.0000 V

Max.: 4.9725 V

-

-

Rotation Angle Sens Avg(COS)

Rotation angle sensor average (COS)

Min.: 0.0000 V

Max.: 4.9725 V

-

-

Motor Overheat Limit Cnt(Normal)

Number of times that assist limit was performed according to the estimation of the portion where heat was generated in the power steering ECU and motor coil temperature

Min.: 0 times

Max.: 255 times

-

-

Assist Limit Cnt(Power Voltage Low)

Number of times that assist limit was performed due to auxiliary battery voltage having dropped to 9 V or below

Min.: 0 times

Max.: 255 times

-

When cranking occurs during assist, the count may increase.

Power Vol Low Prevention Limit Cnt

Number of times that assist limit was performed due to auxiliary battery voltage having dropped to 9.7 V or below

Min.: 0 times

Max.: 255 times

-

When cranking occurs during assist, the count may increase.

Eng Stall/Ready OFF Cnt

Number of times that assist limit was performed after the engine stalled and the power switch was turned off

Min.: 0 times

Max.: 255 times

-

-

Motor Overheat Limit Cnt(Motor Overload)

Number of times that assist limit was performed to prevent the system from overheating in a case where the motor is overloaded because it is locked due to the steering wheel being turned to the full lock position or a tire hitting a curb

Min.: 0 times

Max.: 255 times

-

-

DCDC Current Limit Cnt(DCDC Malf)

Number of times that the power steering ECU has limited the current to the power steering motor while the DC/DC converter is malfunctioning.

Min.: 0 times

Max.: 255 times

-

-

Assist Limit Cnt(Vehicle Spd Sig Malf)

Number of times that assist power is set to a value suitable for high-speed driving when driving at high speeds due to an abnormal vehicle speed signal

Min.: 0 times

Max.: 255 times

-

-

Battery Voltage Keep Limit Cnt

Number of times that system was limited to conserve auxiliary battery voltage

Min.: 0 times

Max.: 255 times

-

-

Assist Limit Record 1

Information of assist limit that was used in the past or is currently in use (latest history)

Unrec, Mtr Overheat, Pow Vol Low, Pow Vol Low Prevent, Eng Stall, Ready OFF, Mtr Overload, DC-DC Malf, Vhcl Spd Sig Malf, Batt Vol Keep

-

-

Record 1 Key Cycle

Number of times that the power switch was turned on (IG) before Assist Limit Record 1 was stored

Min.: 0 times

Max.: 65535 times

-

-

Record 1 Key Cycle Elapsed Time

Period of time that elapsed after the power switch was turned on (IG) before Assist Limit Record 1 was stored

Min.: 0.0 s

Max.: 53687091.1 s

-

-

Assist Limit Record 2

Information of assist limit that was used in the past (second latest history)

Unrec, Mtr Overheat, Pow Vol Low, Pow Vol Low Prevent, Eng Stall, Ready OFF, Mtr Overload, DC-DC Malf, Vhcl Spd Sig Malf, Batt Vol Keep

-

-

Record 2 Key Cycle

Number of times that the power switch was turned on (IG) after Assist Limit Record 2 was stored before Assist Limit Record 1 was stored

Min.: 0 times

Max.: 65535 times

-

-

Record 2 Key Cycle Elapsed Time

Period of time that elapsed after the power switch was turned on (IG) before Assist Limit Record 2 was stored

Min.: 0.0 s

Max.: 53687091.1 s

-

-

Assist Limit Record 3

Information of assist limit that was used in the past (third latest history)

Unrec, Mtr Overheat, Pow Vol Low, Pow Vol Low Prevent, Eng Stall, Ready OFF, Mtr Overload, DC-DC Malf, Vhcl Spd Sig Malf, Batt Vol Keep

-

-

Record 3 Key Cycle

Number of times that the power switch was turned on (IG) after Assist Limit Record 3 was stored before Assist Limit Record 2 was stored

Min.: 0 times

Max.: 65535 times

-

-

Record 3 Key Cycle Elapsed Time

Period of time that elapsed after the power switch was turned on (IG) before Assist Limit Record 3 was stored

Min.: 0.0 s

Max.: 53687091.1 s

-

-

Current Key Cycle

Number of current trip

Min.: 0 times

Max.: 65535 times

-

-

Current Key Cycle Elapsed Time

Time elapsed since power switch was turned on (IG)

Min.: 0.0 s

Max.: 53687091.1 s

-

-

The Number of DTCs

Number of detected DTCs when freeze frame data stored

Min.: 0

Max.: 255

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