ANTI-LOCK BRAKE SYSTEM DATA LIST / ACTIVE TEST


  1. 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.

    Tech Tips

    Using the GTS 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.

    DATA LIST


    1. Warm up the engine.

    2. Turn the ignition switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Enter the following menus: Chassis / ABS/VSC/TRC / Data List.

    7. According to the display on the GTS, read the Data List.


      Chassis > ABS/VSC/TRC > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      ABS Warning Light ABS warning light ON or OFF

      OFF: Warning light off

      ON: Warning light on

      		 -
      Brake Warning Light Brake warning light ON or OFF

      OFF: Warning light off

      ON: Warning light on

      		 -
      Stop Light SW Stop light switch assembly ON or OFF

      OFF: Brake pedal released

      ON: Brake pedal depressed

      		 -
      Parking Brake SW Parking brake switch assembly ON or OFF

      OFF: Parking brake released

      ON: Parking brake applied

      		 -
      Inspection Mode Inspection mode Other or Inspect

      Inspect: Inspection mode

      Other: Normal mode

      		 -
      Deceleration Sensor Deceleration sensor

      Min.: -18.525 m/s2

      Max.: 18.387 m/s2

      		-

      During deceleration/acceleration: Changes continuously

      for 2WD other than Pre-Runner:

      The item is displayed on the GTS but not used.
      Forward and Rearward G Forward and backward G

      Min.: -25.10 m/s2

      Max.: 24.90 m/s2

      		-

      During acceleration/deceleration: Changes in proportion with acceleration

      for 2WD other than Pre-Runner:

      The item is displayed on the GTS but not used.
      Rear Diff Lock Switch Rear differential lock position switch (No. 1 transfer indicator switch) ON or OFF

      OFF: Rear differential lock position switch off

      ON: Rear differential lock position switch on

      		 w/ Rear Differential Lock
      Automatic Disconnect Diff SW

      • A.D.D. position switch (differential motor actuator assembly)*1

      • 4WD detection switch (transfer shift actuator assembly)*2

      		 ON or OFF

      OFF: 2WD

      ON: 4WD

      		 for 4WD
      L4 Switch L4 detection switch (transfer shift actuator assembly) ON or OFF

      OFF: except L4

      ON: L4

      		 for 4WD
      FR Wheel Speed Front wheel speed sensor RH reading

      Min.: 0 km/h (0 mph)

      Max.: 326.4 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      FL Wheel Speed Front wheel speed sensor LH reading

      Min.: 0 km/h (0 mph)

      Max.: 326.4 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      RR Wheel Speed Rear wheel speed sensor RH reading

      Min.: 0 km/h (0 mph)

      Max.: 326.4 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      RL Wheel Speed Rear wheel speed sensor LH reading

      Min.: 0 km/h (0 mph)

      Max.: 326.4 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      Vehicle Speed Maximum wheel speed sensor reading

      Min.: 0 km/h (0 mph)

      Max.: 326.4 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      FR Wheel Acceleration Front wheel RH acceleration

      Min.: -200.84 m/s2

      Max.: 199.27 m/s2

      		- During deceleration/acceleration: Changes continuously
      FL Wheel Acceleration Front wheel LH acceleration

      Min.: -200.84 m/s2

      Max.: 199.27 m/s2

      		- During deceleration/acceleration: Changes continuously
      RR Wheel Acceleration Rear wheel RH acceleration

      Min.: -200.84 m/s2

      Max.: 199.27 m/s2

      		- During deceleration/acceleration: Changes continuously
      RL Wheel Acceleration Rear wheel LH acceleration

      Min.: -200.84 m/s2

      Max.: 199.27 m/s2

      		- During deceleration/acceleration: Changes continuously
      FR Wheel ABS Ctrl Status Front wheel RH ABS control status ON or OFF

      OFF: Not during control

      ON: During control

      		 -
      FL Wheel ABS Ctrl Status Front wheel LH ABS control status ON or OFF

      OFF: Not during control

      ON: During control

      		 -
      RR Wheel ABS Ctrl Status Rear wheel RH ABS control status ON or OFF

      OFF: Not during control

      ON: During control

      		 -
      RL Wheel ABS Ctrl Status Rear wheel LH ABS control status ON or OFF

      OFF: Not during control

      ON: During control

      		 -
      RR Wheel EBD Ctrl Status Rear wheel RH EBD control status ON or OFF

      OFF: Not during control

      ON: During control

      		 -
      RL Wheel EBD Ctrl Status Rear wheel LH EBD control status ON or OFF

      OFF: Not during control

      ON: During control

      		 -
      Solenoid Relay Solenoid relay ON or OFF

      OFF: Solenoid relay off

      ON: Solenoid relay on

      		 -
      ECB Motor Relay Motor relay ON or OFF

      OFF: Motor relay off

      ON: Motor relay on

      Tech Tips

      ECB: Electronically Controlled Brake System
      ABS Solenoid (SFRH) ABS solenoid (SFRH) ON or OFF

      OFF: Not operating

      ON: Operating

      		 -
      ABS Solenoid (SFRR) ABS solenoid (SFRR) ON or OFF

      OFF: Not operating

      ON: Operating

      		 -
      ABS Solenoid (SFLH) ABS solenoid (SFLH) ON or OFF

      OFF: Not operating

      ON: Operating

      		 -
      ABS Solenoid (SFLR) ABS solenoid (SFLR) ON or OFF

      OFF: Not operating

      ON: Operating

      		 -
      ABS Solenoid (SRRH) ABS solenoid (SRRH) ON or OFF

      OFF: Not operating

      ON: Operating

      		 -
      ABS Solenoid (SRRR) ABS solenoid (SRRR) ON or OFF

      OFF: Not operating

      ON: Operating

      		 -
      ABS Solenoid (SRLH) ABS solenoid (SRLH) ON or OFF

      OFF: Not operating

      ON: Operating

      		 -
      ABS Solenoid (SRLR) ABS solenoid (SRLR) ON or OFF

      OFF: Not operating

      ON: Operating

      		 -
      FR Speed Open Front speed sensor RH open detection Error or Normal Normal Error: Momentary interruption
      FL Speed Open Front speed sensor LH open detection Error or Normal Normal Error: Momentary interruption
      RR Speed Open Rear speed sensor RH open detection Error or Normal Normal Error: Momentary interruption
      RL Speed Open Rear speed sensor LH open detection Error or Normal Normal Error: Momentary interruption
      EFI Communication Open ECM communication open detection Error or Normal Normal Error: Momentary interruption
      Deceleration Open Deceleration sensor open detection Error or Normal Normal

      Error: Momentary interruption

      for 4WD and Pre-Runner
      IG1 Voltage Value IG1 voltage value

      Min.: 0 V

      Max.: 20 V

      		 Ignition switch ON: 11 to 14 V Changes in proportion to battery voltage
      MT Voltage Value Motor voltage value

      Min.: 0 V

      Max.: 20 V

      		 - Changes in proportion to battery voltage
      Number of DTC Number of DTCs recorded

      Min.: 0

      Max.: 255

      		 - -
      IG Voltage Value Decreased IG voltage value decrease detection Error or Normal Normal Error: Voltage low
      IG Voltage Value Increased IG voltage value increase detection Error or Normal Normal Error: Voltage high
      FR Speed Sensor Voltage Open Front speed sensor RH voltage open detection Error or Normal Normal Error: Momentary interruption
      FL Speed Sensor Voltage Open Front speed sensor LH voltage open detection Error or Normal Normal Error: Momentary interruption
      RR Speed Sensor Voltage Open Rear speed sensor RH voltage open detection Error or Normal Normal Error: Momentary interruption
      RL Speed Sensor Voltage Open Rear speed sensor LH voltage open detection Error or Normal Normal Error: Momentary interruption
      EFI Communication Invalid ECM communication invalid detection Error or Normal Normal Error: Invalid
      4WD LOCK Switch 4WD position switch signal ON or OFF

      OFF: 2WD

      ON: 4WD

      		 for 4WD

      • *1: w/ A.D.D. Actuator

      • *2: w/o A.D.D. Actuator

  2. ACTIVE TEST

    Tech Tips

    Using the GTS to perform Active Tests allows relays, VSV, 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 ignition switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Enter the following menus: Chassis / ABS/VSC/TRC / Active Test.

    7. According to the display on the GTS, perform the Active Test.


      Chassis > ABS/VSC/TRC > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      ABS Warning Light ABS warning light Warning light ON/OFF

      Observe combination meter assembly

      Vehicle condition: Vehicle stopped
      Brake Warning Light Brake warning light Warning light ON/OFF

      Observe combination meter assembly

      Vehicle condition: Vehicle stopped
      Solenoid Relay Solenoid relay Relay ON/OFF Vehicle condition: Vehicle stopped
      Motor Relay Motor relay Relay ON/OFF

      Operating sound of motor can be heard.

      Vehicle condition: Vehicle stopped
      ABS Solenoid (SRLR) ABS solenoid (SRLR) Solenoid ON/OFF

      Operating sound of solenoid (clicking sound) can be heard.

      Vehicle condition: Vehicle stopped
      ABS Solenoid (SRLH) ABS solenoid (SRLH) Solenoid ON/OFF

      Operating sound of solenoid (clicking sound) can be heard.

      Vehicle condition: Vehicle stopped
      ABS Solenoid (SRRR) ABS solenoid (SRRR) Solenoid ON/OFF

      Operating sound of solenoid (clicking sound) can be heard.

      Vehicle condition: Vehicle stopped
      ABS Solenoid (SRRH) ABS solenoid (SRRH) Solenoid ON/OFF

      Operating sound of solenoid (clicking sound) can be heard.

      Vehicle condition: Vehicle stopped
      ABS Solenoid (SFLR) ABS solenoid (SFLR) Solenoid ON/OFF

      Operating sound of solenoid (clicking sound) can be heard.

      Vehicle condition: Vehicle stopped
      ABS Solenoid (SFLH) ABS solenoid (SFLH) Solenoid ON/OFF

      Operating sound of solenoid (clicking sound) can be heard.

      Vehicle condition: Vehicle stopped
      ABS Solenoid (SFRR) ABS solenoid (SFRR) Solenoid ON/OFF

      Operating sound of solenoid (clicking sound) can be heard.

      Vehicle condition: Vehicle stopped
      ABS Solenoid (SFRH) ABS solenoid (SFRH) Solenoid ON/OFF

      Operating sound of solenoid (clicking sound) can be heard.

      Vehicle condition: Vehicle stopped
      ABS Solenoid Selection of multiple holding solenoids (SFRH, SFLH, SRRH and SRLH) and pressure reduction solenoids (SFRR, SFLR, SRRR and SRLR) possible Start/Stop Vehicle condition: Vehicle stopped