POWER STEERING SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: Chassis / EMPS / Data List.

    6. According to the display on the GTS, read the Data List.


      Chassis > EMPS > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Meter Vehicle Velocity 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): Vehicle stopped

      • No significant fluctuation: Vehicle driven at a constant speed

      		 -
      Wheel Speed Right Rear right wheel speed

      Min.: 0 km/h (0 mph)

      Max.: 255 km/h (158 mph)

      • 0 km/h (0 mph): Vehicle stopped

      • No significant fluctuation: Vehicle driven at a constant speed

      		 -
      Wheel Speed Left Rear left wheel speed

      Min.: 0 km/h (0 mph)

      Max.: 255 km/h (158 mph)

      • 0 km/h (0 mph): Vehicle stopped

      • No significant fluctuation: 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
      Motor Actual Current Amount of current to motor

      Min.: -327.68 A

      Max.: 327.67 A

      Value changes in proportion to steering effort:

      Engine running and steering wheel being turned

      		 -
      Command Value Current Requested current to motor

      Min.: -327.68 A

      Max.: 327.67 A

      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 effort:

      Engine running and steering wheel being turned

      		 -
      Thermistor Temperature ECU substrate temperature

      Min.: -50.0°C (-58.0°F)

      Max.: 150.0°C (302.0°F)

      		 - -
      IG Power Supply IG power source voltage

      Min.: 0.0000 V

      Max.: 20.1531 V

      		 8 to 16 V Engine switch on (IG)
      Steering Angle Sens Sig Steering sensor signal state OK or NG (1) or NG (2) or NG (3)

      OK: Steering sensor signal received

      NG (1): The learning has not completed

      NG (2): Steering sensor abnormal

      NG (3): Communication error

      		 -
      Steering Wheel Torque Steering wheel torque

      Min.: -327.68 Nm

      Max.: 7.00 Nm

      Value changes in proportion to steering effort:

      Engine running and steering wheel being turned

      		 -
      Motor Rotation Angle Motor rotation angle

      Min.: 0.000 deg

      Max.: 1441.770 deg

      		 During steering operation, motor rotation angle value changes from 0 to 360° Engine running and steering wheel being turned
      Command Val Current 2 Requested current to motor

      Min.: -327.68 A

      Max.: 327.67 A

      		 Value changes in proportion to steering effort Engine running and steering wheel being turned
      Motor Voltage Motor power supply voltage

      Min.: 0.000 V

      Max.: 98.000 V

      		 9 to 16 V Always
      TRQ1 Zero Point Value Zero point value of torque sensor 1

      Min.: 0.0000 V

      Max.: 4.9725 V

      		 2.3 to 2.7 V Engine running and steering wheel not being turned (without load)
      TRQ2 Zero Point Value Zero point value of torque sensor 2

      Min.: 0.0000 V

      Max.: 4.9725 V

      		 2.3 to 2.7 V Engine running and steering wheel not being turned (without load)
      IG ON/OFF Times Number of times of engine switch turned on/off since latest DTC detection

      Min.: 0 times

      Max.: 65535 times

      		 - -
      Motor Overheat Record Continuous overheat prevention control record Unrec or Rec -

      Unrec: Unrecorded

      Rec: Recorded

      The amount of power assist may be decreased to prevent the motor and ECUs from overheating if the steering wheel is continuously turned when the vehicle is either stopped or driven at a low speed, or if the steering wheel is kept in either full lock position for a long time.
      Motor Lo Power Record PIG power source voltage drop record Unrec or Rec -

      Unrec: Unrecorded

      Rec: Recorded

      If the PIG power source voltage decreases temporarily, the amount of power assist will be reduced.
      Eng Rev Inter Record Record of engine signal interruption Unrec or Rec -

      Unrec: Unrecorded

      Rec: Recorded
      Str Angle Inter Record Record of steering sensor signal interruption occurrence display Unrec or Rec -

      Unrec: Unrecorded

      Rec: Recorded
      Spd Sig Invalid Record Record of vehicle speed signal invalid Unrec or Rec -

      Unrec: Unrecorded

      Rec: Recorded
      Battery Voltage Lo Record Battery voltage reduction history

      Min.: 0 times

      Max.: 65535 times

      		 - -
      Battery Control Count (Body ECU) Number of battery load control operations

      Min.: 0 times

      Max.: 65535 times

      		 - -
      PS Assist Signal Status of the record of power steering assist signal OFF or ON

      OFF: Engine switch on (IG)

      ON: Engine running

      		 -
      Ready Status Ready status Ready or OFF - This item is displayed but not used
      Motor Actual Current 2 Amount of current to motor

      Min.: -327.68 A

      Max.: 327.67 A

      		 Value changes in proportion to steering effort Engine running and steering wheel being turned
      Stop&Start Ctrl Mode Stop and start system condition IG or Run or Stopreq or Stop or Restart

      IG: Ignition switch ON (Before engine started)

      Run: Engine running

      Stopreq: Engine stop requested

      Stop: Engine stopped

      Restart: Engine restarting

      		 -
      Rotation Angle Sens Avg(SIN) Rotation angle sensor average (SIN) 0.0000 to 4.9725 V - -
      Rotation Angle Sens Avg(COS) Rotation angle sensor average (COS) 0.0000 to 4.9725 V - -
      Motor Overheat Limit Cnt(Normal) Number of times that assist limit was performed according to the estimated temperature of the motor coil and heat generating components of the rack and pinion power steering gear assembly

      Min.: 0 times

      Max.: 255 times

      		 - -
      Assist Limit Cnt(Power Voltage Low) Number of times that assist limit was performed due to battery voltage having dropped to 9 V or below

      Min.: 0 times

      Max.: 255 times

      		 - -
      Power Vol Low Prevention Limit Cnt Number of times that assist limit was performed due to battery voltage having dropped to 9.7 V or below

      Min.: 0 times

      Max.: 255 times

      		 - -
      Eng Stall/Ready OFF Cnt Number of times that assist limit was performed after the engine stalled and the engine 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 when the motor was overloaded 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

      		 - This item is displayed but not used
      Assist Limit Cnt(Vehicle Spd Sig Malf) Number of times that assist power was set to a value suitable for high-speed driving when high speed is detected 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 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, Vhcl Spd Sig Malf, Batt Vol Keep - -
      Record 1 Key Cycle Number of times that the engine 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 since the engine switch was turned on (IG) before Assist Limit Record 1 was stored

      Min.: 0.0 s

      Max.: 53687091.1 s

      		 - -
      Record 1 Power Source Power source operating status when Assist Limit Record 1 was stored No Data, Running, Stop - -
      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, Vhcl Spd Sig Malf, Batt Vol Keep - -
      Record 2 Key Cycle Number of times that the engine 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 since the engine switch was turned on (IG) before Assist Limit Record 2 was stored

      Min.: 0.0 s

      Max.: 53687091.1 s

      		 - -
      Record 2 Power Source Power source operating status when Assist Limit Record 2 was stored No Data, Running, Stop - -
      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, Vhcl Spd Sig Malf, Batt Vol Keep - -
      Record 3 Key Cycle Number of times that the engine 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 since the engine switch was turned on (IG) before Assist Limit Record 3 was stored

      Min.: 0.0 s

      Max.: 53687091.1 s

      		 - -
      Record 3 Power Source Power source operating status when Assist Limit Record 3 was stored No Data, Running, Stop - -
      Current Key Cycle Number of times that engine switch was turned on (IG)

      Min.: 0 times

      Max.: 65535 times

      		 - -
      Current Key Cycle Elapsed Time Time elapsed since engine switch was turned on (IG)

      Min.: 0.0 s

      Max.: 53687091.1 s

      		 - -
      Steering Angle Steering angle

      Min.: -3072.0 deg

      Max.: 3070.5 deg

      		 - -
      Torque Sensor 1 Output Torque sensor 1 output value

      Min.: 0.0000 V

      Max.: 4.9725 V

      • 2.3 to 2.7 V: Engine running and steering wheel not being turned (without load)

      • 1.2 to 2.5 V: Engine running and steering wheel turning left

      • 2.5 to 3.8 V: Engine running and steering wheel turning right

      		 -
      Torque Sensor 2 Output Torque sensor 2 output value

      Min.: 0.0000 V

      Max.: 4.9725 V

      • 2.3 to 2.7 V: Engine running and steering wheel not being turned (without load)

      • 1.2 to 2.5 V: Engine running and steering wheel turning left

      • 2.5 to 3.8 V: Engine running and steering wheel turning right

      		 -
      Torque Sensor 1 Power Supply Torque sensor 1 power supply voltage

      Min.: 0.0000 V

      Max.: 4.9725 V

      		 - -
      Torque Sensor 2 Power Supply Torque sensor 2 power supply voltage

      Min.: 0.0000 V

      Max.: 4.9725 V

      		 - -
      Rotation Angle Sensor Output 1 Rotation angle sensor Vx1 output voltage

      Min.: 0.0000 V

      Max.: 4.9725 V

      		 - -
      Rotation Angle Sensor Output 2 Rotation angle sensor Vx2 output voltage

      Min.: 0.0000 V

      Max.: 4.9725 V

      		 - -
      Rotation Angle Sensor Output 3 Rotation angle sensor Vy1 output voltage

      Min.: 0.0000 V

      Max.: 4.9725 V

      		 - -
      Rotation Angle Sensor Output 4 Rotation angle sensor Vy2 output voltage

      Min.: 0.0000 V

      Max.: 4.9725 V

      		 - -
      Motor 1 Terminal Current (U) 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 Terminal Current (V) 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 Terminal Current (W) Motor 1 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 Terminal Current (U) Motor 1 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 Terminal Current (V) 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 Terminal Current (W) 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 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 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 1 Terminal Volt (U) Motor 1 terminal voltage (U phase)

      Min.: 0.000 V

      Max.: 98.000 V

      		 Value changes within 4 to 35 V range Engine running and steering wheel being turned
      Motor 1 Terminal Volt (V) Motor 1 terminal voltage (V phase)

      Min.: 0.000 V

      Max.: 98.000 V

      		 Value changes within 4 to 35 V range Engine running and steering wheel being turned
      Motor 1 Terminal Volt (W) Motor 1 terminal voltage (W phase)

      Min.: 0.000 V

      Max.: 98.000 V

      		 Value changes within 4 to 35 V range Engine running and steering wheel being turned
      Motor 2 Terminal Volt (U) Motor 2 terminal voltage (U phase)

      Min.: 0.000 V

      Max.: 98.000 V

      		 Value changes within 4 to 35 V range Engine running and steering wheel being turned
      Motor 2 Terminal Volt (V) Motor 2 terminal voltage (V phase)

      Min.: 0.000 V

      Max.: 98.000 V

      		 Value changes within 4 to 35 V range Engine running and steering wheel being turned
      Motor 2 Terminal Volt (W) Motor 2 terminal voltage (W phase)

      Min.: 0.000 V

      Max.: 98.000 V

      		 Value changes within 4 to 35 V range Engine running and steering wheel being turned
      Motor 1 PIG Power Supply Power supply voltage to active motor 1

      Min.: 0.0000 V

      Max.: 20.1531 V

      		 9 to 16 V Engine running and steering wheel being turned
      Motor 2 PIG Power Supply Power supply voltage to active motor 2

      Min.: 0.0000 V

      Max.: 20.1531 V

      		 9 to 16 V Engine running and steering wheel being turned
      The Number of DTCs Number of detected DTCs when freeze frame data was stored

      Min.: 0

      Max.: 255

      		 - -