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Home >> Lexus >> 2021 >> LS 500 Base, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Dynamic Rear Steering System - Diagnostics - Introduction >> Dynamic Rear Steering System >> Data List / Active Test [10/2023 - ] >> Data List / Active Test [10/2023 - ]

Data List / Active Test [10/2023 - ]

  1. READ DATA LIST 
    1. Turn the ignition switch off.
    2. Connect the GTS to the DLC3.
    3. Turn the ignition switch to ON.
    4. In accordance with the screen on the GTS, display the Data List screen and check the ECU data.

      Chassis > DRS > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Total Distance Traveled Driving distance value 0 to 16777215 - -
      Total Distance Traveled - Unit Displays the driving distance unit km / mile - -
      Status of IGR Relay Coil Displays the received supply power status (IGR relay drive) OFF / ON ON: IG ON Can be used to check whether the vehicle IGR status conforms with the ECU IGR status.
      Status of IGP Relay Coil Displays the received supply power status (IGP relay drive) OFF / ON ON: IG ON Can be used to check whether the vehicle IGP status conforms with the ECU IGP status.
      Status of IGP Information (IGP_PT1) Displays the received supply power status (IGR supply power) OFF / ON ON: IG ON Can be used to check whether the vehicle IGR status conforms with the ECU IGR status.
      Status of IGP Information (IGP_PT2) Displays the received supply power status (IGP supply power) OFF / ON ON: IG ON Can be used to check whether the vehicle IGP status conforms with the ECU IGP status.
      Front Right Wheel Speed Displays the front right wheel speed -67.67 to 260.00 km/h 0.00 km/h: The vehicle is stopped
      No large fluctuations: Vehicle being driven at a certain speed
      -
      Front Left Wheel Speed Displays the front left wheel speed -67.67 to 260.00 km/h 0.00 km/h: The vehicle is stopped
      No large fluctuations: Vehicle being driven at a certain speed
      -
      Rear Right Wheel Speed Displays the rear right wheel speed -67.67 to 260.00 km/h 0.00 km/h: The vehicle is stopped
      No large fluctuations: Vehicle being driven at a certain speed
      -
      Rear Left Wheel Speed Displays the rear left wheel speed -67.67 to 260.00 km/h 0.00 km/h: The vehicle is stopped
      No large fluctuations: Vehicle being driven at a certain speed
      -
      Vehicle Speed Displays the vehicle speed -67.67 to 260.00 km/h 0.00 km/h: The vehicle is stopped
      No large fluctuations: Vehicle being driven at a certain speed
      During a malfunction, consider that the SP1 signal may be abnormal
      Shift Position R Displays the shift state R status OFF / ON ON: Shift lever in R -
      Stop Light Switch Displays whether the brake pedal is being operated OFF / ON ON: The brake pedal is depressed -
      Steering Angle LSB Enhancing Signal (CL Bus) Displays the LSB expansion signal of the steering signal -0.8 to 0.7 deg - By combining the steering angle signal and steering LSB expansion steering angle signal, a high resolution steering angle can be acquired.
      Steering Angle Signal (CL Bus) Displays the front steering angle received via CAN -1044 to 1044 deg - -
      Torsion Bar Twist (CL Bus) Displays the EPS torsion bar twist -20.48 to 20.47 deg - By utilizing the EPS torsion bar twist signal, a more responsive control can be performed.
      Steering Angle Signal Speed (CL Bus) Displays the steering angular velocity received via CAN -2048 to 2047 deg/s Changes in proportion to steering force: Engine currently rotating or ignition switch ON (READY), and steering being operated -
      Steering Angle Signal (C2 Bus) Displays the front steering angle received via CAN -1044 to 1044 deg - -
      Steering Angle LSB Enhancing Signal (C2 Bus) Displays the LSB expansion signal of the steering signal -0.8 to 0.7 deg - By combining the steering angle signal and steering LSB expansion steering angle signal, a high resolution steering angle can be acquired.
      Steering Sensor Signal (C2 Bus) Displays the steering operation angular velocity received by CAN -2048 to 2047 deg/s Changes in proportion to steering force: Engine currently rotating or ignition switch ON (READY), and steering being operated -
      G Sensor (Back & Forth) Displays the longitudinal acceleration value -18.375 to 18.34047 m/s^2 During deceleration: -18.375 to 0.00000 m/s^2
      During acceleration: 0.00000 to 18.34047 m/s^2
      -
      G Sensor (Side to Side) Displays the lateral acceleration value -18.375 to 18.34047 m/s^2 When turning right: -18.375 to 0.00000 m/s^2
      When turning left: 0.000 to 18.34047 m/s^2
      -
      Yaw Rate Sensor Displays the yaw rate sensor value -125 to 124.612 deg/sec The vehicle is stopped: 0.000 deg/sec
      When turning right: -125 to 0.000 deg/sec
      When turning left: 0.000 to 124.612 deg/sec
      -
      Status of ASTNRM or RDYIND Displays engine currently rotating or ignition switch ON (READY) status 0 / 1 - "1" is displayed when ignition switch is ON (READY)
      DRS Target Steering Angle Target steering angle of the rear wheels -93.87 to 93.87 deg
      [-1.6384 to 1.63835 rad]
      When traveling straight forward: 0 deg [0 rad]
      When turning at low speed: Changes to opposite of front steering angle
      When turning at high speed: Changes to same as front steering angle
      -
      DRS Angle Invalidation Displays the status of the stroke sensor Effectively / Invalidity Effectively When invalid, it is suspected that the rear steering link assembly is malfunctioning
      DRS Angle Displays the steering angle of the rear wheels detected by the stroke sensor -93.87 to 93.87 deg Steering angle conforms with target steering angle -
      DRS Angle Speed Displays the speed related steering angle of the rear wheels -938.7 to 938.7 deg/s Sudden evasive operation (Vehicle speed 10 to 20 km/h): 1.7 deg/s (peak) -
      IG Voltage Displays the IG supply power voltage 0 to 25 V 10.5 to 16 V -
      PIG Voltage 1 Displays the motor supply power voltage 0 to 25 V 11 to 14 V -
      PIG Voltage 2 Displays the motor supply power voltage 0 to 25 V 11 to 14 V -
      Status of Block Relay Displays the status of the internal solid state relay for motor output isolation Open / Close Close When open, a DTC or RoB is output.
      Status of Rear Toe Adjustment Displays status of rear toe adjustment mode Forced Drive Off / Drive / Completion / Failure(On The Way Vehicle Speed Outbreak) / Failure(Time Out) / Failure(Fail Safe) / Failure(Tool Side Interruption Instructions) - When failed, a DTC is output.