VARIABLE GEAR RATIO STEERING SYSTEM FREEZE FRAME DATA

Tech Tips

The VGRS system stores data when a trouble code is stored which can be viewed using the GTS.


  1. FREEZE FRAME DATA OF VGRS ECU (FRONT STEERING CONTROL ECU)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / VGRS / Trouble Codes.

    5. According to the display on the GTS, select the trouble code data display with Freeze Frame Data.

      VGRS
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Steering Angle

      Steering angle/

      Min.: -1638.40 deg

      Max.: 1638.35 deg

      		 -600 to 600 deg -
      Steering Angle Changing Speed

      Steering angle changing speed/

      Min.: -1638.40 deg/s

      Max.: 1638.35 deg/s

      		 -1146 to 1146 deg/s -
      Vehicle Speed

      Vehicle speed/

      Min.: 0.00 km/h (0 mph)

      Max.: 327.67 km/h (203 mph)

      		 Actual vehicle speed -
      Starting Status

      Starting status/

      Stop or Starting-up

      Not power switch on (READY): Stop

      Power switch on (READY): Starting-up

      		 -
      IG Power Supply Voltage

      IG power supply voltage/

      Min.: 0.00 V

      Max.: 255.99 V

      		 11 to 14 V -
      PIG Power Supply Voltage

      PIG power supply voltage/

      Min.: 0.00 V

      Max.: 255.99 V

      		 11 to 14 V -
      Power Supply Status

      Power supply status/

      Normal, N Pos Stop, Cur Pos Stop or Prompt Stop

      		 Normal -
      Limit Power Request(from EPS)

      Limit power request/

      ON or OFF

      		 OFF -
      Stop Request(from EPS)

      Stop request/

      ON or OFF

      		 OFF -
      System Heavily-loaded Status

      System heavily-loaded status/

      ON or OFF

      		 OFF -
      ECU Substrate Temperature

      ECU substrate temperature/

      Min.: -256.00°C (-428°F)

      Max.: 255.99°C (492°F)

      		 -40 to 120°C (-40 to 248°F) -
      Motor Temperature(ECU Calculated Value)

      Motor temperature/

      Min.: -256.00°C (-428°F)

      Max.: 255.99°C (492°F)

      		 Within 20°C (68°F) of ambient temperature -
      Ambient Temperature

      Ambient temperature/

      Min.: -40°C (-40°F)

      Max.: 50°C (122°F)

      		 Same as ambient temperature -
      System Overheat Status

      System overheat status/

      Normal, Overheat-Weak, Overheat-Mid or Overheat-Strong

      		 Normal -
      ECU Substrate Temperature(ECU Calculated Value)

      ECU substrate temperature

      Min.: -256.00°C (-428°F)

      Max.: 255.99°C (492°F)

      		 -40 to 120°C (-40 to 248°F) -
      Wheel Angle(SIL Communication)

      Wheel angle (SIL communication)/

      Min.: -1638.40 deg

      Max.: 1638.35 deg

      		 -600 to 600 deg -
      Wheel Angle(CAN Communication)

      Wheel angle (CAN communication)/

      Min.: -1638.40 deg

      Max.: 1638.35 deg

      		 -600 to 600 deg -
      Steering Angle Sensor Communication Protocol

      Steering sensor communication protocol/

      Calc Val Fix, SIL or CAN

      		 SIL -
      Direct Advance Wheel Angle

      Direct advance wheel angle/

      Min.: -1638.40 deg

      Max.: 1638.35 deg

      		 -10.5 to 10.5 deg -
      Direct Advance Wheel Angle Status

      Direct advance wheel angle status/

      Delete, Temp Val or Fixed Val

      		 Fixed Val -
      Motor Resolver Electrical Angle

      Motor resolver electrical angle/

      Min.: 0.00 deg

      Max.: 359.99 deg

      		 0.00 to 359.99 deg -
      Changing Amount of Motor Resolver Electrical Angle

      Changing amount of motor resolver electrical angle/

      Min.: -180.00 deg

      Max.: 179.99 deg

      		 -46 to 46 deg -
      Motor Resolver SIN Phase Shaped Width

      Motor resolver SIN phase amplitude/

      Min.: -5.00 V

      Max.: 4.99 V

      		 -4.1 to 4.1 V -
      Motor Resolver SIN Phase Offset

      Motor resolver SIN phase offset/

      Min.: 0.00 V

      Max.: 19.99 V

      		 5 to 15 V -
      Motor Resolver COS Phase Shaped Width

      Motor resolver COS phase amplitude/

      Min.: -5.00 V

      Max.: 4.99 V

      		 -4.1 to 4.1 V -
      Motor Resolver COS Phase Offset

      Motor resolver COS phase offset/

      Min.: 0.00 V

      Max.: 19.99 V

      		 5 to 15 V -
      Motor Resolver Shaped Width Squared Sum

      Sum of squares of motor resolver amplitudes/

      Min.: 0.00 V^2

      Max.: 25.00 V^2

      		 1.4 to 16.6 V^2 -
      Deep Groove Electrical Angle Position

      Deep groove electrical angle position/

      Min.: 0.00 deg

      Max.: 359.99 deg

      		 75 to 145 deg -
      Neutral Position Calibration Status

      Neutral position calibration status/

      Incmpl or Cmpl

      		 Cmpl -
      Actuator Target Angle

      Actuator target angle/

      Min.: -512.00 deg

      Max.: 511.98 deg

      		 -150 to 150 deg -
      Actuator Angle

      Actuator angle/

      Min.: -512.00 deg

      Max.: 511.98 deg

      		 -150 to 150 deg -
      Pinion Angle Status

      Pinion angle status/

      Invalid or Valid

      		 Valid -
      Pinion Angle

      Pinion angle/

      Min.: -2048.00 deg

      Max.: 2047.93 deg

      		 -600 to 600 deg -
      Motor U Phase Voltage

      Motor U phase voltage/

      Min.: 0.00 V

      Max.: 255.99 V

      		 0 to 14 V -
      Motor V Phase Voltage

      Motor V phase voltage/

      Min.: 0.00 V

      Max.: 255.99 V

      		 0 to 14 V -
      Motor W Phase Voltage

      Motor W phase voltage/

      Min.: 0.00 V

      Max.: 255.99 V

      		 0 to 14 V -
      Motor U Phase Current

      Motor U phase current/

      Min.: -256.00 A

      Max.: 255.99 A

      		 -75 to 75 A -
      Motor V Phase Current

      Motor V phase current/

      Min.: -256.00 A

      Max.: 255.99 A

      		 -75 to 75 A -
      Motor W Phase Current

      Motor W phase current/

      Min.: -256.00 A

      Max.: 255.99 A

      		 -75 to 75 A -
      Motor U Phase Duty

      Motor U phase duty/

      Min.: 0.00 %

      Max.: 100.00 %

      		 6 to 94 % -
      Motor V Phase Duty

      Motor V phase duty/

      Min.: 0.00 %

      Max.: 100.00 %

      		 6 to 94 % -
      Motor W Phase Duty

      Motor W phase duty/

      Min.: 0.00 %

      Max.: 100.00 %

      		 6 to 94 % -
      PIG Current

      PIG current/

      Min.: -256.00 A

      Max.: 255.99 A

      		 -50 to 50 A -
      Motor q Axis Target Voltage

      Motor q axis target voltage/

      Min.: -32.00 V

      Max.: 31.99 V

      		 -6 to 6 V -
      Motor q Axis Current

      Motor q axis current/

      Min.: -256.00 A

      Max.: 255.99 A

      		 -92 to 92 A -
      Motor d Axis Current

      Motor d axis current/

      Min.: -256.00 A

      Max.: 255.99 A

      		 -10 to 13 A -
      Motor Rotation Speed

      Motor rotation speed/

      Min.: -32768 deg/s

      Max.: 32767 deg/s

      		 -17190 to 17190 deg/s -
      Lock Solenoid Voltage

      Lock solenoid voltage/

      Min.: 0.00 V

      Max.: 255.99 V

      		 0 to 14 V -
      Lock Status

      Lock status/

      Pin Pos Indef, Pin Inserting, Pin Vadum Insert, Pin Inserted, Pin Insert Confirming, Pin Insert Confirmed, Pin Insert Mal, Release Start, Pin Release Confirmed, Pin Release Confirmed, Pin Release Mal, Pin Released, Pin Release Impos, Line Power OFF or Pin Insert Waiting

      		 Pin Released -
      Lock Solenoid Duty

      Lock solenoid duty/

      Min.: 0 %

      Max.: 100 %

      		 0 to 100 % -
      Rear Target Wheel Angle

      Rear target wheel angle/

      Min.: -8.00 deg

      Max.: 7.99 deg

      		 -2 to 2 deg -
      Rear Wheel Angle

      Rear wheel angle/

      Min.: -8.00 deg

      Max.: 7.99 deg

      		 -2 to 2 deg -