Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM1000000025796
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model): DATA LIST / ACTIVE TEST; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]

DATA LIST / ACTIVE TEST

DATA LIST (for Type A)

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.

NOTICE:

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.

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / EMPS / Data List.

(f) Read the Data List according to the display on the Techstream.

Chassis > EMPS > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled

Total distance traveled

Min.: 0, Max.: 16777215

-

-

Total Distance Traveled - Unit

Total Distance Traveled unit

km / mile

-

-

Vehicle Speed

Vehicle speed from speedometer

Min.: 0.0 km/h (0.0 MPH)

Max.: 300.0 km/h (186.4 MPH)

  • 0 km/h (0 MPH): Engine running and vehicle stopped
  • No significant fluctuation: Engine running and vehicle driven at a constant speed

-

Engine Revolution

Engine speed

Min.: 0 rpm

Max.: 12800 rpm

No significant fluctuation

Engine running at a constant speed

Battery Voltage

Battery voltage

Min.: 0.00 V

Max.: 25.00 V

11 to 14 V

-

Steering Wheel Torque

Steering wheel torque

Min.: -25.000 Nm

Max.: 25.001 Nm

Value changes in proportion to steering effort

- Engine running 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

- Engine running and steering wheel being turned

-

Steering Angle

Steering angle

Min.: -3072.0 deg

Max.: 3070.5 deg

-

-

Status of Vehicle Power (IGP PT2)

State of IGP power source(PT2)

OFF or ON

OFF: Ignition switch off

ON: Ignition switch ON

*1

Status of Vehicle Power (IGP PT1)

State of IGP power source(PT1)

OFF or ON

OFF: Ignition switch off

ON: Ignition switch ON

*1

Status of Vehicle Power (IGP PDC)

State of IGP power source(PDC)

OFF or ON

OFF: Ignition switch off

ON: Ignition switch ON

*1

Status of Vehicle Power (IGR PDC)

State of IGR power source(PDC)

OFF or ON

OFF: Ignition switch off

ON: Ignition switch ON

*1

IG Power Supply

IG power source voltage

Min.: 0.00 V

Max.: 25.00 V

8 to 16 V

Ignition switch ON

PIG Power Supply

PIG power source voltage

Min.: 0.00 V

Max.: 25.00 V

9 to 16 V

Engine running and steering wheel being turned

Thermistor Temperature

ECU substrate temperature

Min.: -50.0°C (-58.0°F)

Max.: 200.0°C (392.0°F)

-50°C to 200°C (-58°F to 392°F)

-

Power Source

Operating state of engine

Operating State or Stopped State

Operating State: Engine running

Stopped State: Engine stopped

-

PS Assist Signal

Status of the record of power steering assist signal

OFF or ON

OFF: Assist stop

ON: Under an assist

-

Middle Voltage of Other Systems

Middle Voltage of Other Systems

Min.: 0.00 V

Max.: 25.00 V

-

*1

Torque Sensor 1 Output

Torque sensor 1 output value

Min.: -25.000 Nm

Max.: 25.000 Nm

-

-

Torque Sensor 2 Output

Torque sensor 2 output value

Min.: -25.000 Nm

Max.: 25.000 Nm

-

-

Torque Sensor 3 Output

Torque sensor 3 output value

Min.: -25.000 Nm

Max.: 25.000 Nm

-

-

Torque Sensor 4 Output

Torque sensor 4 output value

Min.: -25.000 Nm

Max.: 25.000 Nm

-

-

Torque Sensor 1 Zero Point Value

Torque sensor 1A zero point compensation value

-

-

Although the item is displayed on the Techstream, it is not applicable to the vehicle.

Torque Sensor 2 Zero Point Value

Torque sensor 1B zero point compensation value

-

-

Although the item is displayed on the Techstream, it is not applicable to the vehicle.

Torque Sensor 3 Zero Point Value

Torque sensor 2A zero point compensation value

-

-

Although the item is displayed on the Techstream, it is not applicable to the vehicle.

Torque Sensor 4 Zero Point Value

Torque sensor 2B zero point compensation value

-

-

Although the item is displayed on the Techstream, it is not applicable to the vehicle.

Motor 1 U Phase Current

Motor 1 terminal current (U phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 1 V Phase Current

Motor 1 terminal current (V phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 1 W Phase Current

Motor 1 terminal voltage (W phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 1 U Phase Duty

Motor 1 U phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 1 V Phase Duty

Motor 1 V phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 1 W Phase Duty

Motor 1 W phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 1 U Phase Terminal Voltage

Motor 1 terminal voltage (U phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 1 V Phase Terminal Voltage

Motor 1 terminal voltage (V phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 1 W Phase Terminal Voltage

Motor 1 terminal voltage (W phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 1 Power Supply

Power supply voltage to active motor 1

Min.: 0.00 V

Max.: 25.00 V

9 to 16 V

Engine running and steering wheel being turned

Motor 2 U Phase Current

Motor 2 terminal current (U phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 2 V Phase Current

Motor 2 terminal current (V phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 2 W Phase Current

Motor 2 terminal current (W phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 2 U Phase Duty

Motor 2 U phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 2 V Phase Duty

Motor 2 V phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 2 W Phase Duty

Motor 2 W phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 2 U Phase Terminal Voltage

Motor 2 terminal voltage (U phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 2 V Phase Terminal Voltage

Motor 2 terminal voltage (V phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 2 W Phase Terminal Voltage

Motor 2 terminal voltage (W phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 2 Power Supply

Power supply voltage to active motor 2

Min.: 0.00 V

Max.: 25.00 V

9 to 16 V

Engine running and steering wheel being turned

Motor Rotation Angle 1

Motor Rotation Angle 1

Min.: 0.0 deg

Max.: 360.1 deg

Value changes from 0 to 360°

  • Engine running and steering wheel being turned
  • *1

Motor Rotation Angle 2

Motor Rotation Angle 2

Min.: 0.0 deg

Max.: 360.1 deg

Value changes from 0 to 360°

  • Engine running and steering wheel being turned
  • *1

Motor Rotation Angle 3

Motor Rotation Angle 3

Min.: 0.0 deg

Max.: 360.1 deg

-

*1

Motor Rotation Angle 4

Motor Rotation Angle 4

Min.: 0.0 deg

Max.: 360.1 deg

-

*1

Motor Rotation Angle Sensor 1 Sin Voltage

Rotation angle sensor Sin1 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 1 Cos Voltage

Rotation angle sensor Cos1 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 2 Sin Voltage

Rotation angle sensor Sin2 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 2 Cos Voltage

Rotation angle sensor Cos2 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 3 Sin Voltage

Rotation angle sensor Sin3 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 3 Cos Voltage

Rotation angle sensor Cos3 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Actual Current (Q Axis)

Detected current flow to motor (detected current of axis q)

Min.: -327.68 A

Max.: 327.67 A

-

-

Command Value Current (Q Axis)

Target current flow to motor (requested current of axis q)

Min.: -327.68 A

Max.: 327.67 A

-

-

Motor Actual Current 2 (D Axis)

Detected current flow to motor (detected current of axis d)

Min.: -327.68 A

Max.: 327.67 A

-

-

Command Value Current 2 (D Axis)

Target current flow to motor (requested current of axis d)

Min.: -327.68 A

Max.: 327.67 A

-

-

Motor Rotation Angle

Motor rotation angle (detected by rotation sensor)

Min.: 0.0 deg

Max.: 360.1 deg

-

-

Final Motor Current Limited (Q Axis)

Final motor current set limit (request current of axis q)

Min.: 0.00 A

Max.: 327.67 A

-

-

Steering Angle Sensor Signal State

State of steering angle sensor signal

Usable, Unlearned, Sensor Fault or Communication Fault

-

-

CAN Vehicle Speed (Speed Sensor RR)

Speed sensor RR value sent via CAN

Min.: 0 km/h (0 MPH)

Max.: 255 km/h (158 MPH)

  • 0 km/h (0 MPH): Engine running and vehicle stopped
  • No significant fluctuation: Engine running and vehicle driven at a constant speed

-

CAN Vehicle Speed (Speed Sensor RL)

Speed sensor RL value sent via CAN

Min.: 0 km/h (0 MPH)

Max.: 255 km/h (158 MPH)

  • 0 km/h (0 MPH): Engine running and vehicle stopped
  • No significant fluctuation: Engine running and vehicle driven at a constant speed

-

CAN Vehicle Speed (SP1)

Vehicle speed input value sent via CAN (equal to value indicated on speedometer)

Min.: 0 km/h (0 MPH)

Max.: 300 km/h (186 MPH)

  • 0 km/h (0 MPH): Engine running and vehicle stopped
  • No significant fluctuation: Engine running and vehicle driven at a constant speed

-

CAN Steering Angle Speed (SSAV)

Steering wheel turning speed value sent via CAN

Min.: -32768 deg/s

Max.: 32767 deg/s

-

-

Battery Voltage Drop History

Number of times vehicle battery voltage dropped

Min.: 0

Max.: 255

-

-

Engine Revolution Ready Signal Communication Failure History

Vehicle speed input value sent via CAN (equal to value indicated on speedometer)

Min.: 0

Max.: 255

-

-

Steering Angle Sensor Signal Communication Failure History

Number of times steering angle sensor signal was interrupted

Min.: 0

Max.: 255

-

-

Vehicle Speed Signal Invalid History

Number of times steering angle sensor signal was interrupted

Min.: 0

Max.: 255

-

-

Overheat Prevention Control History

Number of times assist limit performed due to estimated temperature of power steering ECU and motor coil

Min.: 0

Max.: 255

-

-

Power Supply Voltage Drop Control History

Number of times assist limit performed due to battery voltage having dropped to 9 V or less

Min.: 0

Max.: 255

-

-

Power Supply Voltage Drop Restraint Control History

Number of times assist limit performed due to battery voltage having dropped to 9.7 V or less

Min.: 0

Max.: 255

-

-

Engine Stall/READY OFF Control History

Number of times assist limit performed due to engine stall

Min.: 0

Max.: 255

-

-

High Load Continuous Control Number of Times

Number of times assist limit performed to prevent motor from overheating when overloaded due to steering wheel being turned to full lock position for an extended period of time, tire pressing against curbstone, etc.

Min.: 0

Max.: 255

-

-

Vehicle Speed Signal Fault Control History

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

Min.: 0

Max.: 255

-

-

Chassis Power Supply Management EPS Control History

Chassis power supply management EPS control history

Min.: 0

Max.: 255

-

*1

Load Control History

Number of times electric load limited to ensure stable vehicle power when power steering could not function appropriately or battery voltage was too low to ensure stable power steering

Min.: 0

Max.: 255

-

-

Control State Information

Control status information

Min.: 0

Max.: 65535

-

-

ASIC State Information

Integrated circuit state information

Min.: 0

Max.: 65535

-

-

ECU Overheat Prevention Part

Internal component of ECU for which overheat protection control is performed

No Target Part, Inverter MOS, Power Supply Relay MOS, Custom IC, Choke Coil, H Bridge MOS, Motor Relay MOS, Around Microcomput or DBC

-

-

ECU Estimate Temperature of Overheat Prevention Part

Estimated temperature of internal component of ECU for which overheat protection control is performed

Min.: -50.0°C (-58.0°F)

Max.: 200.1 °C (392.2 °F)

-

-

Motor Overheat Prevention Part

Internal component of motor for which overheat protection control is performed

No Target Part or Motor

-

-

Motor Estimate Temperature of Overheat Prevention Part

Estimated temperature of internal component of motor for which overheat protection control is performed

Min.: -50.0°C (-58.0°F)

Max.: 200.1 °C (392.2 °F)

-

-

Battery Voltage (System 2)

Battery Voltage (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

IG Power Supply (System 2)

IG Power Supply (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

PIG Power Supply (System 2)

PIG Power Supply (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

Thermistor Temperature (System 2)

Thermistor Temperature (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

Middle Voltage of Other Systems (System 2)

Middle Voltage of Other Systems (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

Motor Actual Current (Q Axis) (System 2)

Motor Actual Current (Q Axis) (System 2)

Min.: -327.68 A

Max.: 327.67 A

-

*1

Command Value Current (Q Axis) (System 2)

Command Value Current (Q Axis) (System 2)

Min.: -327.68 A

Max.: 327.67 A

-

*1

Motor Actual Current 2 (D Axis) (System 2)

Motor Actual Current 2 (D Axis) (System 2)

Min.: -327.68 A

Max.: 327.67 A

-

*1

Command Value Current 2 (D Axis) (System 2)

Command Value Current 2 (D Axis) (System 2)

Min.: -327.68 A

Max.: 327.67 A

-

*1

Motor Rotation Angle (System 2)

Motor Rotation Angle (System 2)

Min.: 0.00 deg

Max.: 360.0 deg

-

*1

Final Motor Current Limited (Q Axis) (System 2)

Final Motor Current Limited (Q Axis) (System 2)

Min.: 0.00 A

Max.: 327.67 A

-

*1

Battery Voltage Drop History (System 2)

Battery Voltage Drop History (System 2)

Min.: 0

Max.: 255

-

*1

Engine Revolution Ready Signal Communication Failure History (System 2)

Engine Revolution Ready Signal Communication Failure History (System 2)

Min.: 0

Max.: 255

-

*1

Steering Angle Sensor Signal Communication Failure History (System 2)

Steering Angle Sensor Signal Communication Failure History (System 2)

Min.: 0

Max.: 255

-

*1

Vehicle Speed Signal Invalid History (System 2)

Vehicle Speed Signal Invalid History (System 2)

Min.: 0

Max.: 255

-

*1

Overheat Prevention Control History (System 2)

Overheat Prevention Control History (System 2)

Min.: 0

Max.: 255

-

*1

Power Supply Voltage Drop Control History (System 2)

Power Supply Voltage Drop Control History (System 2)

Min.: 0

Max.: 255

-

*1

Power Supply Voltage Drop Restraint Control History (System 2)

Power Supply Voltage Drop Restraint Control History (System 2)

Min.: 0

Max.: 255

-

*1

Engine Stall/READY OFF Control History (System 2)

Engine Stall/READY OFF Control History (System 2)

Min.: 0

Max.: 255

-

*1

High Load Continuous Control Number of Times (System 2)

High Load Continuous Control Number of Times (System 2)

Min.: 0

Max.: 255

-

*1

Vehicle Speed Signal Fault Control History (System 2)

Vehicle Speed Signal Fault Control History (System 2)

Min.: 0

Max.: 255

-

*1

Chassis Power Supply Management EPS Control History (System 2)

Chassis Power Supply Management EPS Control History (System 2)

Min.: 0

Max.: 255

-

*1

Load Control History (System 2)

Load Control History (System 2)

Min.: 0

Max.: 255

-

*1

ASIC State Information (System 2)

Integrated circuit state information

Min.: 0

Max.: 65535

-

*1

HINT:

  • With the vehicle stopped or driving very slowly, if the steering wheel is turned repeatedly or turned to a lock position and the vehicle is driven for an extended period of time, the amount of power assist is decreased to prevent overheating of the motor and ECU. If this occurs, do not turn the steering wheel for approximately 10 minutes with engine running to improve power assist.
  • If the battery is not sufficiently charged or the voltage decreases temporarily, the amount of power assist is reduced and the EPS warning light comes on. In such cases, the amount of power assist returns to normal when the battery voltage recovers.
  • *1: Depending on the vehicle, this item may not be displayed.

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.

DATA LIST (for Type B)

NOTICE:

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.

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / EMPS / Data List.

(f) Read the Data List according to the display on the Techstream.

Chassis > EMPS > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled

Total distance traveled

Min.: 0, Max.: 16777215

-

-

Total Distance Traveled - Unit

Total Distance Traveled unit

km / mile

-

-

Vehicle Speed

Vehicle speed from speedometer

Min.: 0.0 km/h (0.0 MPH)

Max.: 300.0 km/h (186.4 MPH)

  • 0 km/h (0 MPH): Engine running and vehicle stopped
  • No significant fluctuation: Engine running and vehicle driven at a constant speed

-

Engine Revolution

Engine speed

Min.: 0 rpm

Max.: 12800 rpm

No significant fluctuation

Engine running at a constant speed

Battery Voltage

Auxiliary battery voltage

Min.: 0.00 V

Max.: 25.00 V

11 to 14 V

-

Steering Wheel Torque

Steering wheel torque

Min.: -25.000 Nm

Max.: 25.001 Nm

Value changes in proportion to steering effort

- Engine running 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

- Engine running and steering wheel being turned

-

Steering Angle

Steering angle

Min.: -3072.0 deg

Max.: 3070.5 deg

-

-

Status of Vehicle Power (IGP PT2)

State of IGP power source(PT2)

OFF or ON

OFF: Ignition switch off

ON: Ignition switch ON

-

Status of Vehicle Power (IGP PT1)

State of IGP power source(PT1)

OFF or ON

OFF: Ignition switch off

ON: Ignition switch ON

-

Status of Vehicle Power (IGP PDC)

State of IGP power source(PDC)

OFF or ON

OFF: Ignition switch off

ON: Ignition switch ON

-

Status of Vehicle Power (IGR PDC)

State of IGR power source(PDC)

OFF or ON

OFF: Ignition switch off

ON: Ignition switch ON

-

IG Power Supply

IG power source voltage

Min.: 0.00 V

Max.: 25.00 V

8 to 16 V

Ignition switch ON

PIG Power Supply

PIG power source voltage

Min.: 0.00 V

Max.: 25.00 V

9 to 16 V

Engine running and steering wheel being turned

Thermistor Temperature

ECU substrate temperature

Min.: -50.0°C (-58.0°F)

Max.: 200.0°C (392.0°F)

-50°C to 200°C (-58°F to 392°F)

-

Power Source

Operating state of hybrid system

Operating State or Stopped State

Operating State: Engine running

Stopped State: Engine stopped

-

PS Assist Signal

Status of the record of power steering assist signal

Assist Stop or Under an Assist

OFF: Assist stop

ON: Under an assist

-

Middle Voltage of Other Systems

Middle Voltage of Other Systems

Min.: 0.00 V

Max.: 25.00 V

-

*1

Torque Sensor 1 Output

Torque sensor 1 output value

Min.: -25.000 Nm

Max.: 25.000 Nm

-

-

Torque Sensor 2 Output

Torque sensor 2 output value

Min.: -25.000 Nm

Max.: 25.000 Nm

-

-

Torque Sensor 3 Output

Torque sensor 3 output value

Min.: -25.000 Nm

Max.: 25.000 Nm

-

-

Torque Sensor 4 Output

Torque sensor 4 output value

Min.: -25.000 Nm

Max.: 25.000 Nm

-

-

Torque Sensor 1 Zero Point Value

Torque sensor 1A zero point compensation value

-

-

Although the item is displayed on the GTS, it is not applicable to the vehicle.

Torque Sensor 2 Zero Point Value

Torque sensor 1B zero point compensation value

-

-

Although the item is displayed on the GTS, it is not applicable to the vehicle.

Torque Sensor 3 Zero Point Value

Torque sensor 2A zero point compensation value

-

-

Although the item is displayed on the GTS, it is not applicable to the vehicle.

Torque Sensor 4 Zero Point Value

Torque sensor 2B zero point compensation value

-

-

Although the item is displayed on the GTS, it is not applicable to the vehicle.

Motor 1 U Phase Current

Motor 1 terminal current (U phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 1 V Phase Current

Motor 1 terminal current (V phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 1 W Phase Current

Motor 1 terminal voltage (W phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 1 U Phase Duty

Motor 1 U phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 1 V Phase Duty

Motor 1 V phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 1 W Phase Duty

Motor 1 W phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 1 U Phase Terminal Voltage

Motor 1 terminal voltage (U phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 1 V Phase Terminal Voltage

Motor 1 terminal voltage (V phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 1 W Phase Terminal Voltage

Motor 1 terminal voltage (W phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 1 Power Supply

Power supply voltage to active motor 1

Min.: 0.00 V

Max.: 25.00 V

9 to 16 V

Engine running and steering wheel being turned

Motor 2 U Phase Current

Motor 2 terminal current (U phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 2 V Phase Current

Motor 2 terminal current (V phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 2 W Phase Current

Motor 2 terminal current (W phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

Engine running and steering wheel being turned

Motor 2 U Phase Duty

Motor 2 U phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 2 V Phase Duty

Motor 2 V phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 2 W Phase Duty

Motor 2 W phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 2 U Phase Terminal Voltage

Motor 2 terminal voltage (U phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 2 V Phase Terminal Voltage

Motor 2 terminal voltage (V phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 2 W Phase Terminal Voltage

Motor 2 terminal voltage (W phase)

Min.: 0.00 V

Max.: 100.00 V

-

*1

Motor 2 Power Supply

Power supply voltage to active motor 2

Min.: 0.00 V

Max.: 25.00 V

9 to 16 V

Engine running and steering wheel being turned

Motor Rotation Angle 1

Motor Rotation Angle 1

Min.: 0.0 deg

Max.: 360.1 deg

Value changes from 0 to 360°

  • Engine running and steering wheel being turned
  • *1

Motor Rotation Angle 2

Motor Rotation Angle 2

Min.: 0.0 deg

Max.: 360.1 deg

Value changes from 0 to 360°

  • Engine running and steering wheel being turned
  • *1

Motor Rotation Angle 3

Motor Rotation Angle 3

Min.: 0.0 deg

Max.: 360.1 deg

-

*1

Motor Rotation Angle 4

Motor Rotation Angle 4

Min.: 0.0 deg

Max.: 360.1 deg

-

*1

Motor Rotation Angle Sensor 1 Sin Voltage

Rotation angle sensor Sin1 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 1 Cos Voltage

Rotation angle sensor Cos1 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 2 Sin Voltage

Rotation angle sensor Sin2 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 2 Cos Voltage

Rotation angle sensor Cos2 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 3 Sin Voltage

Rotation angle sensor Sin3 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Motor Rotation Angle Sensor 3 Cos Voltage

Rotation angle sensor Cos3 output voltage used for rotation angle calculation

Min.: 0.00 V

Max.: 5.00 V

-

-

Turn Counter 1

Turn Counter 1

Min.: 0

Max.: 1024

-

*1

Turn Counter 2

Turn Counter 2

Min.: 0

Max.: 1024

-

*1

Absolute Angle (Pinion Angle)

Absolute Angle (Pinion Angle)

Min.: -32.768 rad

Max.: 32.768 rad

-

*1

Steering Angle for the Steering Assembly

Steering angle for the steering assembly

Min.: -1877.5 deg

Max.: 1877.6 deg

-

*1

Status of Learned Left/Right End Position for End Torque Limit Control

Status of Learned Left/Right End Position for End Torque Limit Control

Left Direction (Unlearned) & Right Direction (Unlearned) / Left Direction (Unlearned) & Right Direction (Temporary Position) / Left Direction (Unlearned) & Right Direction (Decision Position) / Left Direction (Temporary Position) & Right Direction (Unlearned) / Left Direction (Temporary Position) & Right Direction (Temporary Position) / Left Direction (Temporary Position) & Right Direction (Decision Position) / Left Direction (Decision Position) & Right Direction (Unlearned) / Left Direction (Decision Position) & Right Direction (Temporary Position) / Left Direction (Decision Position) & Right Direction (Decision Position) / Reading Impossibility / 17 to 255

-

-

Learned End Current Position for End Torque Limit Control

Learned End Current Position for End Torque Limit Control

Min.: -3276.8 deg

Max.: 3276.6 deg

-

-

Learned Left End Position for End Torque Limit Control

Learned Left End Position for End Torque Limit Control

Min.: -3276.8 deg

Max.: 3276.6 deg

-

-

Learned Right End Position for End Torque Limit Control

Learned Right End Position for End Torque Limit Control

Min.: -3276.8 deg

Max.: 3276.6 deg

-

-

Super High Speed Steering Angle Speed Abnormality Number of Times

Super High Speed Steering Angle Speed Abnormality Number of Times

Min.: 0

Max.: 255

-

-

Number of Learned End Position Resets

Number of Learned End Position Resets

Min.: 0

Max.: 255

-

-

Rack Stroke

Rack Stroke

Min.: 6553.5 mm

Max.: 1024

-

*1

Manual Learning of Gear Middle Point (Right and Left End Hit Against Completed Status)

Manual learning of gear middle point (right and left end hit against completed status)

Right (Non-Completed)/Left (Non-Completed)

Right (Completed)/Left (Non-Completed)

Right (Completed)/Left (Non-Completed)

Right (Completed)/Left (Completed)

-

*1

Motor Actual Current (Q Axis)

Detected current flow to motor (detected current of axis q)

Min.: -327.68 A

Max.: 327.67 A

-

-

Command Value Current (Q Axis)

Target current flow to motor (requested current of axis q)

Min.: -327.68 A

Max.: 327.67 A

-

-

Motor Actual Current 2 (D Axis)

Detected current flow to motor (detected current of axis d)

Min.: -327.68 A

Max.: 327.67 A

-

-

Command Value Current 2 (D Axis)

Target current flow to motor (requested current of axis d)

Min.: -327.68 A

Max.: 327.67 A

-

-

Motor Rotation Angle

Motor rotation angle (detected by rotation sensor)

Min.: 0.0 deg

Max.: 360.1 deg

-

-

Final Motor Current Limited (Q Axis)

Final motor current set limit (request current of axis q)

Min.: 0.00 A

Max.: 327.67 A

-

-

Steering Angle Sensor Signal State

State of steering angle sensor signal

Usable, Unlearned, Sensor Fault or Communication Fault

-

-

CAN Vehicle Speed (Speed Sensor RR)

Speed sensor RR value sent via CAN

Min.: 0 km/h (0 MPH)

Max.: 255 km/h (158 MPH)

  • 0 km/h (0 MPH): Engine running and vehicle stopped
  • No significant fluctuation: Engine running and vehicle driven at a constant speed

-

CAN Vehicle Speed (Speed Sensor RL)

Speed sensor RL value sent via CAN

Min.: 0 km/h (0 MPH)

Max.: 255 km/h (158 MPH)

  • 0 km/h (0 MPH): Engine running and vehicle stopped
  • No significant fluctuation: Engine running and vehicle driven at a constant speed

-

CAN Vehicle Speed (SP1)

Vehicle speed input value sent via CAN (equal to value indicated on speedometer)

Min.: 0 km/h (0 MPH)

Max.: 300 km/h (186 MPH)

  • 0 km/h (0 MPH): Engine running and vehicle stopped
  • No significant fluctuation: Engine running and vehicle driven at a constant speed

-

CAN Steering Angle Speed (SSAV)

Steering wheel turning speed value sent via CAN

Min.: -32768 deg/s

Max.: 32767 deg/s

-

-

Battery Voltage Drop History

Number of times vehicle auxiliary battery voltage dropped

Min.: 0

Max.: 255

-

-

Engine Revolution Ready Signal Communication Failure History

Vehicle speed input value sent via CAN (equal to value indicated on speedometer)

Min.: 0

Max.: 255

-

-

Steering Angle Sensor Signal Communication Failure History

Number of times steering angle sensor signal was interrupted

Min.: 0

Max.: 255

-

-

Vehicle Speed Signal Invalid History

Number of times steering angle sensor signal was interrupted

Min.: 0

Max.: 255

-

-

Overheat Prevention Control History

Number of times assist limit performed due to estimated temperature of power steering ECU and motor coil

Min.: 0

Max.: 255

-

-

Power Supply Voltage Drop Control History

Number of times assist limit performed due to battery voltage having dropped to 9 V or less

Min.: 0

Max.: 255

-

-

Power Supply Voltage Drop Restraint Control History

Number of times assist limit performed due to battery voltage having dropped to 9 V or less

Min.: 0

Max.: 255

-

-

Engine Stall/READY OFF Control History

Number of times assist limit performed due to engine stall

Min.: 0

Max.: 255

-

-

High Load Continuous Control Number of Times

Number of times assist limit performed to prevent motor from overheating when overloaded due to steering wheel being turned to full lock position for an extended period of time, tire pressing against curbstone, etc.

Min.: 0

Max.: 255

-

-

Vehicle Speed Signal Fault Control History

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

Min.: 0

Max.: 255

-

-

Chassis Power Supply Management EPS Control History

Chassis power supply management EPS control history

Min.: 0

Max.: 255

-

*1

Load Control History

Number of times electric load limited to ensure stable vehicle power when power steering could not function appropriately or battery voltage was too low to ensure stable power steering

Min.: 0

Max.: 255

-

-

Control State Information

Control status information

Min.: 0

Max.: 65535

-

-

ASIC State Information

Integrated circuit state information

Min.: 0

Max.: 65535

-

-

ECU Overheat Prevention Part

Internal component of ECU for which overheat protection control is performed

No Target Part, Inverter MOS, Power Supply Relay MOS, Custom IC, Choke Coil, H Bridge MOS, Motor Relay MOS, Around Microcomputer or DBC

-

-

ECU Estimate Temperature of Overheat Prevention Part

Estimated temperature of internal component of ECU for which overheat protection control is performed

Min.: -50.0°C (-58.0°F)

Max.: 200.1 °C (392.2 °F)

-

-

Motor Overheat Prevention Part

Internal component of motor for which overheat protection control is performed

No Target Part or Motor

-

-

Motor Estimate Temperature of Overheat Prevention Part

Estimated temperature of internal component of motor for which overheat protection control is performed

Min.: -50.0°C (-58.0°F)

Max.: 200.1 °C (392.2 °F)

-

-

Battery Voltage (System 2)

Battery Voltage (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

IG Power Supply (System 2)

IG Power Supply (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

PIG Power Supply (System 2)

PIG Power Supply (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

Thermistor Temperature (System 2)

Thermistor Temperature (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

Middle Voltage of Other Systems (System 2)

Middle Voltage of Other Systems (System 2)

Min.: 0.00 V

Max.: 25.00 V

-

*1

Motor Actual Current (Q Axis) (System 2)

Motor Actual Current (Q Axis) (System 2)

Min.: -327.68 A

Max.: 327.67 A

-

*1

Command Value Current (Q Axis) (System 2)

Command Value Current (Q Axis) (System 2)

Min.: -327.68 A

Max.: 327.67 A

-

*1

Motor Actual Current 2 (D Axis) (System 2)

Motor Actual Current 2 (D Axis) (System 2)

Min.: -327.68 A

Max.: 327.67 A

-

*1

Command Value Current 2 (D Axis) (System 2)

Command Value Current 2 (D Axis) (System 2)

Min.: -327.68 A

Max.: 327.67 A

-

*1

Motor Rotation Angle (System 2)

Motor Rotation Angle (System 2)

Min.: 0.00 deg

Max.: 360.0 deg

-

*1

Final Motor Current Limited (Q Axis) (System 2)

Final Motor Current Limited (Q Axis) (System 2)

Min.: 0.00 A

Max.: 327.67 A

-

*1

Battery Voltage Drop History (System 2)

Battery Voltage Drop History (System 2)

Min.: 0

Max.: 255

-

*1

Engine Revolution Ready Signal Communication Failure History (System 2)

Engine Revolution Ready Signal Communication Failure History (System 2)

Min.: 0

Max.: 255

-

*1

Steering Angle Sensor Signal Communication Failure History (System 2)

Steering Angle Sensor Signal Communication Failure History (System 2)

Min.: 0

Max.: 255

-

*1

Vehicle Speed Signal Invalid History (System 2)

Vehicle Speed Signal Invalid History (System 2)

Min.: 0

Max.: 255

-

*1

Overheat Prevention Control History (System 2)

Overheat Prevention Control History (System 2)

Min.: 0

Max.: 255

-

*1

Power Supply Voltage Drop Control History (System 2)

Power Supply Voltage Drop Control History (System 2)

Min.: 0

Max.: 255

-

*1

Power Supply Voltage Drop Restraint Control History (System 2)

Power Supply Voltage Drop Restraint Control History (System 2)

Min.: 0

Max.: 255

-

*1

Engine Stall/READY OFF Control History (System 2)

Engine Stall/READY OFF Control History (System 2)

Min.: 0

Max.: 255

-

*1

High Load Continuous Control Number of Times (System 2)

High Load Continuous Control Number of Times (System 2)

Min.: 0

Max.: 255

-

*1

Vehicle Speed Signal Fault Control History (System 2)

Vehicle Speed Signal Fault Control History (System 2)

Min.: 0

Max.: 255

-

*1

Chassis Power Supply Management EPS Control History (System 2)

Chassis Power Supply Management EPS Control History(System 2)

Min.: 0

Max.: 255

-

*1

Load Control History (System 2)

Load Control History (System 2)

Min.: 0

Max.: 255

-

*1

ASIC State Information (System 2)

Integrated circuit state information

Min.: 0

Max.: 65535

-

*1

HINT:

  • With the vehicle stopped or driving very slowly, if the steering wheel is turned repeatedly or turned to a lock position and the vehicle is driven for an extended period of time, the amount of power assist is decreased to prevent overheating of the motor and ECU. If this occurs, do not turn the steering wheel for approximately 10 minutes with engine running to improve power assist.
  • If the battery is not sufficiently charged or the voltage decreases temporarily, the amount of power assist is reduced and the EPS warning light comes on. In such cases, the amount of power assist returns to normal when the battery voltage recovers.
  • *1: Depending on the vehicle, this item may not be displayed.