ANTI-LOCK BRAKE SYSTEM (w/ Rear Differential Lock) DATA LIST / ACTIVE TEST


  1. READ DATA LIST

    Tech Tips

    Using the intelligent tester 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 ignition switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the intelligent tester on.

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

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

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      ABS Motor Relay ABS motor relay/ ON or OFF

      ON: Motor relay on

      OFF: Motor relay off

      		 -
      Solenoid Relay Solenoid relay/ ON or OFF

      ON: Solenoid relay on

      OFF: Solenoid relay 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

      		 ON is also displayed when the brake fluid level is low (the brake fluid level warning switch is on).
      FR Wheel ABS Control Front wheel RH ABS operation/ Before or Operate

      Before: No ABS operation

      Operate: During ABS operation

      		 -
      FL Wheel ABS Control Front wheel LH ABS operation/ Before or Operate

      Before: No ABS operation

      Operate: During ABS operation

      		 -
      RR Wheel ABS Control Rear wheel RH ABS operation/ Before or Operate

      Before: No ABS operation

      Operate: During ABS operation

      		 -
      RL Wheel ABS Control Rear wheel LH ABS operation/ Before or Operate

      Before: No ABS operation

      Operate: During ABS operation

      		 -
      FR Wheel Speed

      Front speed sensor RH reading/

      Min.: 0 km/h (0 mph)

      Max.: 326 km/h (202 mph)

      		 Actual wheel speed No large fluctuations when driving at a constant speed.
      FL Wheel Speed

      Front speed sensor LH reading/

      Min.: 0 km/h (0 mph)

      Max.: 326 km/h (202 mph)

      		 Actual wheel speed No large fluctuations when driving at a constant speed.
      RR Wheel Speed

      Rear speed sensor RH reading/

      Min.: 0 km/h (0 mph)

      Max.: 326 km/h (202 mph)

      		 Actual wheel speed No large fluctuations when driving at a constant speed.
      RL Wheel Speed

      Rear speed sensor LH reading/

      Min.: 0 km/h (0 mph)

      Max.: 326 km/h (202 mph)

      		 Actual wheel speed No large fluctuations when driving at a constant speed.
      Deceleration Sensor1

      Deceleration sensor 1 reading/

      Min.: -1.86 G

      Max.: 1.85 G

      		 Changes continuously during acceleration/deceleration -
      Deceleration Sensor2

      Deceleration sensor 2 reading/

      Min.: -1.86 G

      Max.: 1.85 G

      		 Changes continuously during acceleration/deceleration -
      ECU IG Power Voltage ECU power supply voltage/ too Low, Normal or too High Normal -
      Solenoid (SFRR) Front wheel RH release solenoid/ ON or OFF

      ON: Operates

      OFF: Does not operate

      		 -
      Solenoid (SFRH) Front wheel RH hold solenoid/ ON or OFF

      ON: Operates

      OFF: Does not operate

      		 -
      Solenoid (SFLR) Front wheel LH release solenoid/ ON or OFF

      ON: Operates

      OFF: Does not operate

      		 -
      Solenoid (SFLH) Front wheel LH hold solenoid/ ON or OFF

      ON: Operates

      OFF: Does not operate

      		 -
      Solenoid (SRRR) Rear wheel release solenoid/ ON or OFF

      ON: Operates

      OFF: Does not operate

      		 -
      Solenoid (SRRH) Rear wheel hold solenoid/ ON or OFF

      ON: Operates

      OFF: Does not operate

      		 -
      FR Speed Open Front speed sensor RH open circuit detection/ Opn_Det or Normal Normal -
      FL Speed Open Front speed sensor LH open circuit detection/ Opn_Det or Normal Normal -
      RR Speed Open Rear speed sensor RH open circuit detection/ Opn_Det or Normal Normal -
      RL Speed Open Rear speed sensor LH open circuit detection/ Opn_Det or Normal Normal -
      Test Mode Test mode/ Normal or Test

      Normal: Normal mode

      Test: Test mode

      		 -
      Number of DTC

      Number of DTCs stored/

      Min.: 0

      Max.: 255

      		 0 -

  2. PERFORM ACTIVE TEST

    Tech Tips

    Using the intelligent tester 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 ignition switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the intelligent tester on.

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

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

      ABS/VSC/TRC
      Tester Display Test Part Control Range Diagnostic Note
      ABS Solenoid (SFRR) Front wheel RH release solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      ABS Solenoid (SFRH) Front wheel RH hold solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      ABS Solenoid (SFLR) Front wheel LH release solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      ABS Solenoid (SFLH) Front wheel LH hold solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      ABS Solenoid (SRRR) Rear wheel release solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      ABS Solenoid (SRRH) Rear wheel hold solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      ABS Solenoid (SFRR & SFRH) Front wheel RH release and hold solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      ABS Solenoid (SFLR & SFLH) Front wheel LH release and hold solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      ABS Solenoid (SRRR & SRRH) Rear wheel release and hold solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      ABS Solenoid (SFRH & SFLH) Front wheel RH and LH hold solenoid ON / OFF The operating sound of the solenoid (clicking sound) can be heard.
      Solenoid Relay ABS solenoid relay ON / OFF Check for DTCs after performing this Active Test. If no codes are output, the solenoid relay is operating normally.
      ABS Motor Relay ABS motor relay ON / OFF The operating sound of the motor can be heard.
      ABS Warning Light ABS warning light ON / OFF Observe the combination meter.