LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> IS F >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brake Control / Dynamic Control Systems >> Vehicle Stability Control System >> 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 

      NORMAL CONDITION CHART

      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 39m/s2 Min -18 52 m/s2
      Max 18 39 m/s2      		 Reading changes when vehicle is bounced
      Zero Point of Decele 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 127deg/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/
      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 REFERENCE

      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