LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2019 >> GS 300 Base >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Variable Gear Ratio Steering System - Diagnostics - Introduction >> Variable Gear Ratio Steering System >> Freeze Frame Data [09/2014 - ] >> Freeze Frame Data [09/2014 - ]
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Freeze Frame Data [09/2014 - ]

HINT: 

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

  1. FREEZE FRAME DATA OF VGRS ECU (FRONT STEERING CONTROL ECU) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Chassis / VGRS / Trouble Codes.
    5. According to the display on the Techstream, 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      		 Engine stopped: Stop
      Engine running: 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 -
      1. *: w/ Dynamic Rear Steering System
scientia non olet · About LEMON Manuals