LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2019 >> LS 500 Base, RWD >> Repair and Diagnosis (Single Page) >> Steering >> Power Steering >> Power Steering System - Diagnostics - Introduction >> Power Steering System >> Freeze Frame Data [12/2017 - 10/2023] >> Freeze Frame Data [12/2017 - 10/2023]
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Freeze Frame Data [12/2017 - 10/2023]

  1. FREEZE FRAME DATA 

    HINT: 

    • Freeze frame data is stored when a DTC is output.
    • Once the freeze frame data is stored, it is not updated or cleared until the DTCs are cleared.
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG).
    4. Turn the Techstream on.
    5. Enter the following menus: Chassis / EMPS / Trouble Codes.

      Chassis > EMPS > Trouble Codes 

    6. Select a DTC to display the freeze frame data.
    7. Check the freeze frame data for the output DTC.

      Chassis > EMPS 

      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 speed:
      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 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)
      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 - This item is displayed but not used
      Rotation Angle Sens Avg(SIN) Rotation angle sensor average (SIN) Min.: 0.0000 V
      Max.: 4.9725 V
      - -
      Rotation Angle Sens Avg(COS) Rotation angle sensor average (COS) Min.: 0.0000 V
      Max.: 4.9725 V
      - -
      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 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 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