LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2009 >> IS F >> Repair and Diagnosis >> Brakes >> Traction Control >> Vehicle Stability Control System (Diagnostics - Introduction) >> Vehicle Stability Control System >> Data List / Active Test >> Data List / Active Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data List / Active Test

  1. DATA LIST 

    HINT: 

    Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    NOTE:

    In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

    1. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
    7. According to the display on the Techstream, read the Data List.
      ABS/VSC/TRAC DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      ABS Warning Light ABS warning light / ON or OFF ON: Warning light ON
      OFF: Warning light OFF      		 -
      VSC Warning Light Master caution indicator light and multi-information display / ON or OFF ON: Indicator ON
      OFF: Indicator OFF      		 -
      Brake Warning Light Brake warning light / ON or OFF ON: Warning light ON
      OFF: Warning light OFF      		 -
      Slip Indicator Light Slip indicator light / ON or OFF ON: Indicator light ON
      OFF: Indicator light OFF      		 -
      Buzzer Skid control buzzer / ON or OFF ON: Buzzer ON
      OFF: Buzzer OFF      		 -
      Stop Light SW Stop light switch / ON or OFF ON: Brake pedal depressed
      OFF: Brake pedal released      		 -
      Parking Brake SW Parking brake switch / ON or OFF ON: Parking brake applied
      OFF: Parking brake released      		 -
      Main Idle SW Main idle switch / ON or OFF ON: Accelerator pedal released
      OFF: Accelerator pedal depressed      		 -
      Brake Pedal Load Sensing SW Brake pedal load sensing switch / ON or OFF ON: Brake pedal depressed beyond the specified point
      OFF: Brake pedal not depressed beyond the specified point      		 -
      Gear Position Gear position information / P/N, R, 1st-8th, FAIL, NOT R Actual gear position -
      Shift Lever Position Shift lever position information / P/N, R, D/M, 1st-6th/B, FAIL Actual shift lever position -
      Shift Information Shift information / ON or OFF ON: During gear change -
      Inspection Mode Inspection mode / OTHER or INSPECT OTHER: Normal mode
      INSPECT: Inspection mode      		 -
      Number of IG ON(Inspection) Number of times engine switch turned on (IG) after entering inspection mode / min.: 0, max.: 255 Min.: 0
      Max.: 255      		 -
      Master Cylinder Sensor Master cylinder pressure sensor / min.: 0 V, max.: 5 V When brake pedal is released: 0.3 to 0.9 V Reading increases when brake pedal is depressed
      Zero Point of M/C Memorized zero value / min.: -12.5 MPa, max.: 12.4 MPa Min.: -12.5 MPa
      Max.: 12.4 MPa      		 -
      Deceleration Sensor Acceleration sensor / min.: -18.52 m/s2 , max.: 18.39 m/s2 Min.: -18.52 m/s2
      Max.: 18.39 m/s2      		 Reading changes when vehicle is bounced
      Zero Point of Decel Memorized zero value / min.: -25.11 m/s2 , max.: 24.91 m/s2 Min.: -25.11 m/s2
      Max.: 24.91 m/s2      		 -
      Deceleration Sensor2 Acceleration sensor 2 / min.: -18.52 m/s2 , max.: 18.39 m/s2 Min.: -18.52 m/s2
      Max.: 18.39 m/s2      		 Reading changes when vehicle is bounced
      Zero Point of Decele2 Memorized zero value / min.: -25.11 m/s2 , max.: 24.91 m/s2 Min.: -25.11 m/s2
      Max.: 24.91 m/s2      		 -
      Yaw Rate Sensor Yaw rate sensor / min.: -128 deg/s, max.: 127 deg/s Vehicle stationary: 0 deg/s
      Right turn: -128 to 0 deg/s
      Left turn: 0 to 127 deg/s      		 -
      Zero Point of Yaw Rate Memorized zero value / min.: -128 deg/s, max.: 127 deg/s Min.: -128 deg/s
      Max.: 127 deg/s      		 -
      Yaw Rate Sensor2 Yaw rate sensor 2 / min.: -128 deg/s, max.: 127 deg/s Vehicle stationary: 0 deg/s
      Right turn: -128 to 0 deg/s
      Left turn: 0 to 127 deg/s      		 -
      Zero Point of Yaw Rate2 Memorized zero value / min.: -128 deg/s, max.: 127 deg/s Min.: -128 deg/s
      Max.: 127 deg/s      		 -
      Steering Angle Sensor Steering angle sensor / min.: -3276.8 deg, max.: 3276.7 deg Left turn: Increase
      Right turn: Decrease      		 -
      Zero Point of Steering Angle Memorized zero value / min.: -3276.8 deg, max.: 3276.7 deg Min.: -3276.8 deg
      Max.: 3276.7 deg      		 -
      Lateral G Lateral G / min.: -25.11 m/s2 , max.: 24.91 m/s2 Min.: -25.11 m/s2
      Max.: 24.91 m/s2      		 -
      Forward and Rearward G Forward and backward G / min.: -25.11 m/s2 , max.: 24.91 m/s2 Min.: -25.11 m/s2
      Max.: 24.91 m/s2      		 -
      Yaw Rate Value Yaw rate value / min.: -128 deg/s, max.: 127 deg/s Min.: -128 deg/s
      Max.: 127 deg/s      		 -
      Steering Angle Value Steering angle value / min.: -3276.8 deg, max.: 3276.7 deg Min.: -3276.8 deg
      Max.: 3276.7 deg      		 -
      FR Wheel Speed Front wheel speed sensor RH reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) Actual wheel speed Similar speed as indicated on speedometer
      FL Wheel Speed Front wheel speed sensor LH reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) Actual wheel speed Similar speed as indicated on speedometer
      RR Wheel Speed Rear wheel speed sensor RH reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) Actual wheel speed Similar speed as indicated on speedometer
      RL Wheel Speed Rear wheel speed sensor LH reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) Actual wheel speed Similar speed as indicated on speedometer
      Vehicle Speed Maximum wheel speed sensor reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph) Actual vehicle speed Speed indicated on speedometer
      FR Wheel Acceleration Front wheel RH acceleration / min.: -200.84 m/s2 , max.: 199.27 m/s2 0 m/s2 -
      FL Wheel Acceleration Front wheel LH acceleration / min.: -200.84 m/s2 , max.: 199.27 m/s2 0 m/s2 -
      RR Wheel Acceleration Rear wheel RH acceleration / min.: -200.84 m/s2 , max.: 199.27 m/s2 0 m/s2 -
      RL Wheel Acceleration Rear wheel LH acceleration / min.: -200.84 m/s2 , max.: 199.27 m/s2 0 m/s2 -
      FR Wheel Direction Front wheel RH direction / FORWARD or BACK FORWARD: Forward
      BACK: Backward      		 -
      FL Wheel Direction Front wheel LH direction / FORWARD or BACK FORWARD: Forward
      BACK: Backward      		 -
      RR Wheel Direction Rear wheel RH direction / FORWARD or BACK FORWARD: Forward
      BACK: Backward      		 -
      RL Wheel Direction Rear wheel LH direction / FORWARD or BACK FORWARD: Forward
      BACK: Backward      		 -
      FR Wheel ABS Ctrl Status Front wheel ABS control RH status / ON or OFF ON: During control -
      FL Wheel ABS Ctrl Status Front wheel ABS control LH status / ON or OFF ON: During control -
      RR Wheel ABS Ctrl Status Rear wheel ABS control RH status / ON or OFF ON: During control -
      RL Wheel ABS Ctrl Status Rear wheel ABS control LH status / ON or OFF ON: During control -
      BA Ctrl Status BA control status / ON or OFF ON: During control -
      PBA Ctrl Status PBA control status / ON or OFF ON: During control -
      TRC(TRAC) Ctrl Status TRAC control status / ON or OFF ON: During control -
      TRC(TRAC) Engine Ctrl Status TRAC engine control status / ON or OFF ON: During control -
      TRC(TRAC) Brake Ctrl Status TRAC brake control status / ON or OFF ON: During control -
      FR Wheel VSC Ctrl Status Front wheel VSC control RH status / ON or OFF ON: During control -
      FL Wheel VSC Ctrl Status Front wheel VSC control LH status / ON or OFF ON: During control -
      RR Wheel VSC Ctrl Status Rear wheel VSC control RH status / ON or OFF ON: During control -
      RL Wheel VSC Ctrl Status Rear wheel VSC control LH status / ON or OFF ON: During control -
      Engine Revolutions Engine speed / min.: 0 r/min, max.: 65535 r/min Min..: 0 r/min
      Max.: 65535 r/min      		 -
      Real Engine Torque Real engine torque / min.: -1024 N*m, max.: 1023 N*m Min.: -1024 N*m
      Max.: 1023 N*m      		 -
      Accelerator Opening Angle % The difference of a present accelerator / min.: 0%, max.: 128% Min.: 0%
      Max.: 128%      		 -
      Solenoid Relay ABS solenoid relay / ON or OFF ON: Solenoid relay ON
      OFF: Solenoid relay OFF      		 -
      ABS Motor Relay ABS motor relay / ON or OFF ON: Motor relay ON
      OFF: Motor relay OFF      		 -
      Fail Safe Motor Relay ABS motor fail safe relay / ON or OFF ON: Motor relay ON
      OFF: Motor relay OFF      		 -
      ABS Solenoid (SFRH) ABS solenoid (SFRH) / ON or OFF ON: Operates -
      ABS Solenoid (SFRR) ABS solenoid (SFRR) / ON or OFF ON: Operates -
      ABS Solenoid (SFLH) ABS solenoid (SFLH) / ON or OFF ON: Operates -
      ABS Solenoid (SFLR) ABS solenoid (SFLR) / ON or OFF ON: Operates -
      ABS Solenoid (SRRH) ABS solenoid (SRRH) / ON or OFF ON: Operates -
      ABS Solenoid (SRRR) ABS solenoid (SRRR) / ON or OFF ON: Operates -
      ABS Solenoid (SRLH) ABS solenoid (SRLH) / ON or OFF ON: Operates -
      ABS Solenoid (SRLR) ABS solenoid (SRLR) / ON or OFF ON: Operates -
      FR Speed Open Front speed sensor RH open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      FL Speed Open Front speed sensor LH open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      RR Speed Open Rear speed sensor RH open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      RL Speed Open Rear speed sensor LH open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      EFI Communication Open EFI communication open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      Yaw Rate Open Yaw rate sensor open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      Deceleration Open Acceleration sensor open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      Steering Open Steering angle sensor open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      Master Cylinder Open Master cylinder pressure sensor open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      IG1 Voltage Value IG1 voltage / min.: 0 V, max.: 255 V Min.: 0 V
      Max.: 255 V      		 -
      TRAC/VSC Off Mode VSC OFF switch / NORMAL, TRC OFF or VSC OFF NORMAL: Normal mode
      TRC OFF: TRAC off mode
      VSC OFF: VSC off mode      		 -
      Number of DTC Number of DTC recorded / min.: 0, max.: 255 Min.: 0
      Max.: 255      		 -
      IG Voltage Value Decreased IG voltage value decrease detection / ERROR or NORMAL ERROR: Decrease
      NORMAL: Normal      		 -
      FR Speed Sensor Voltage Open Front speed sensor RH voltage open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      FL Speed Sensor Voltage Open Front speed sensor LH voltage open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      RR Speed Sensor Voltage Open Rear speed sensor RH voltage open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      RL Speed Sensor Voltage Open Rear speed sensor LH voltage open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      M/C Pressure Sensor Noise Master cylinder pressure sensor noise detection / ERROR or NORMAL ERROR: Malfunction
      NORMAL: Normal      		 -
      Yaw Rate Sensor Voltage Open Yaw rate sensor voltage open detection / ERROR or NORMAL ERROR: Momentary interruption
      NORMAL: Normal      		 -
      EFI Communication Invalid EFI communication invalid detection / ERROR or NORMAL ERROR: Invalid
      NORMAL: Normal      		 -
  2. ACTIVE TEST 

    HINT: 

    Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

    1. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
    7. According to the display on the Techstream, perform the Active Test.
      ABS/VSC/TRAC ACTIVE TEST

      Tester Display Test Part Control Range Diagnostic Note
      ABS Warning Light ABS warning light Warning light ON/OFF Observe combination meter
      VSC Warning Light Master caution indicator light and multi-information display Indicator ON/OFF Observe combination meter
      Brake Warning Light Brake warning light Warning light ON/OFF Observe combination meter
      Slip Indicator Light Slip indicator light Indicator light ON/OFF Observe combination meter
      Buzzer Skid control buzzer Buzzer ON/OFF Buzzer can be heard
      Solenoid Relay ABS solenoid relay Relay ON/OFF -
      Motor Relay ABS motor relay Relay ON/OFF Operating sound of motor can be heard
      Stop Light Relay Stop light control (BRK-LP) relay Relay ON/OFF Stop lights come on
      ABS Solenoid (SRLR) ABS solenoid (SRLR) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
      ABS Solenoid (SRLH) ABS solenoid (SRLH) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
      ABS Solenoid (SRRR) ABS solenoid (SRRR) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
      ABS Solenoid (SRRH) ABS solenoid (SRRH) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
      ABS Solenoid (SFLR) ABS solenoid (SFLR) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
      ABS Solenoid (SFLH) ABS solenoid (SFLH) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
      ABS Solenoid (SFRR) ABS solenoid (SFRR) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
      ABS Solenoid (SFRH) ABS solenoid (SFRH) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
      VSC/TRAC Solenoid (SMR) Master cut solenoid (SM2) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
      VSC/TRAC Solenoid (SMF) Master cut solenoid (SM1) Solenoid ON/OFF Operating sound of solenoid (clicking sound) can be heard
scientia non olet · About LEMON Manuals