ANTI-LOCK BRAKE SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    Tech Tips

    Using an 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. Replace the normal DLC3 cable (12 V specification) for the intelligent tester with the 24 V DLC3 cable.

      Note

      Be sure to use the 24 V DLC3 cable when connecting the intelligent tester to the DLC3. Using the normal DLC3 cable (12 V specification) will cause damage to the tester.

    4. Connect the intelligent tester to the DLC3.

    5. Turn the ignition switch to ON.

    6. Turn the intelligent tester on.

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

    8. According to the display on the intelligent tester, read the Data List.

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

      OFF: Warning light OFF

      ON: Warning light ON

      		 -
      Brake Warning Light Brake warning light / OFF or ON

      OFF: Warning light OFF

      ON: Warning light ON

      		 -
      Stop Light SW Stop light switch / OFF or ON

      OFF: Brake pedal released

      ON: Brake pedal depressed

      		 -
      Parking Brake SW Parking brake switch / OFF or ON

      OFF: Parking brake released

      ON: Parking brake applied

      		 -
      Master Cylinder Sensor Master cylinder pressure sensor reading / Min.: 0.00 V, Max.: 5.00 V When brake pedal is released: 0.30 to 0.70 V Reading increases when brake pedal is depressed.
      Zero Point of M/C Memorized zero value / Min.: -12.50 MPa, Max.: 12.40 MPa After master cylinder pressure sensor zero point calibration: 2.45 +/- 1 MPa -
      Vacuum Sensor Vacuum sensor reading / Min.: 0.00 V, Max.: 5.00 V - -
      Vacuum Sensor 2 Vacuum sensor 2 reading / Min.: 0.00 V, Max.: 5.00 V - -
      FR Wheel Speed FR wheel speed sensor reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped:

      0 km/h

      		 When driving at constant speed: No large fluctuations
      FL Wheel Speed FL wheel speed sensor reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped:

      0 km/h

      		 When driving at constant speed: No large fluctuations
      RR Wheel Speed RR wheel speed sensor reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped:

      0 km/h

      		 When driving at constant speed: No large fluctuations
      RL Wheel Speed RL wheel speed sensor reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped:

      0 km/h

      		 When driving at constant speed: No large fluctuations
      Vehicle Speed Maximum wheel speed sensor reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped:

      0 km/h

      		 When driving at constant speed: No large fluctuations
      FR Wheel Acceleration

      FR wheel acceleration / Min.: -200.84 m/s2, Max.: 199.27 m/s2

      		- When driving at constant speed: No large fluctuations
      FL Wheel Acceleration

      FL wheel acceleration / Min.: -200.84 m/s2, Max.: 199.27 m/s2

      		- When driving at constant speed: No large fluctuations
      RR Wheel Acceleration

      RR wheel acceleration / Min.: -200.84 m/s2, Max.: 199.27 m/s2

      		- When driving at constant speed: No large fluctuations
      RL Wheel Acceleration

      RL wheel acceleration / Min.: -200.84 m/s2, Max.: 199.27 m/s2

      		- When driving at constant speed: No large fluctuations
      FR Wheel ABS Ctrl Status FR wheel ABS control status / OFF or ON ON: During the control -
      FL Wheel ABS Ctrl Status FL wheel ABS control status / OFF or ON ON: During the control -
      RR Wheel ABS Ctrl Status RR wheel ABS control status / OFF or ON ON: During the control -
      RL Wheel ABS Ctrl Status RL wheel ABS control status / OFF or ON ON: During the control -
      RR Wheel EBD Ctrl Status RR wheel EBD control status / OFF or ON ON: During the control -
      RL Wheel EBD Ctrl Status RL wheel EBD control status / OFF or ON ON: During the control -
      Solenoid Relay ABS solenoid relay / OFF or ON

      OFF: Solenoid relay OFF

      ON: Solenoid relay ON

      		 -
      ECB* Motor Relay ABS motor relay / OFF or ON

      OFF: Motor relay OFF

      ON: Motor relay ON

      		 Item is displayed on tester but not used.
      Fail Safe Motor Relay ABS motor fail safe relay / OFF or ON

      OFF: Motor relay OFF

      ON: Motor relay ON

      		 -
      TR(A)C/VSC Solenoid (SM2) Master cut solenoid (SM2) / OFF or ON

      OFF: Not operate

      ON: Operates

      		 -
      TR(A)C/VSC Solenoid (SM1) Master cut solenoid (SM1) / OFF or ON

      OFF: Not operate

      ON: Operates

      		 -
      ABS Solenoid (SFRH) ABS solenoid (SFRH) / OFF or ON

      OFF: Not operate

      ON: Operates

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

      OFF: Not operate

      ON: Operates

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

      OFF: Not operate

      ON: Operates

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

      OFF: Not operate

      ON: Operates

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

      OFF: Not operate

      ON: Operates

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

      OFF: Not operate

      ON: Operates

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

      OFF: Not operate

      ON: Operates

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

      OFF: Not operate

      ON: Operates

      		 -
      IG1 Voltage Value IG voltage value / Min.: 0.00 V, Max.: 40.00 V - Changes in proportion to battery voltage
      MT Voltage Value Motor driving monitor voltage / Min.: 0.00 V, Max.: 40.00 V - Changes in proportion to battery voltage
      Number of DTC Number of DTC recorded / Min.: 0, Max.: 255 - Number of DTC output displayed

      *: Electronically Controlled Brake system

  2. ACTIVE TEST

    Tech Tips

    Using an 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. Replace the normal DLC3 cable (12 V specification) for the intelligent tester with the 24 V DLC3 cable.

      Note

      Be sure to use the 24 V DLC3 cable when connecting the intelligent tester to the DLC3. Using the normal DLC3 cable (12 V specification) will cause damage to the tester.

    4. Connect the intelligent tester to the DLC3.

    5. Turn the ignition switch to ON.

    6. Turn the intelligent tester on.

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

    8. According to the display on the intelligent tester, perform the Active Test.

      ABS/VSC/TRC
      Tester Display Test Part Control Range Diagnostic Note
      ABS Warning Light ABS warning light Warning light OFF / ON Observe combination meter
      Brake Warning Light Brake warning light Warning light OFF / ON Observe combination meter
      Solenoid Relay ABS solenoid relay Relay OFF / ON -
      Motor Relay ABS motor relay Relay OFF / ON Operating sound of motor can be heard.
      ABS Solenoid (SRLR) ABS solenoid (SRLR) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.
      ABS Solenoid (SRLH) ABS solenoid (SRLH) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.
      ABS Solenoid (SRRR) ABS solenoid (SRRR) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.
      ABS Solenoid (SRRH) ABS solenoid (SRRH) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.
      ABS Solenoid (SFLR) ABS solenoid (SFLR) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.
      ABS Solenoid (SFLH) ABS solenoid (SFLH) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.
      ABS Solenoid (SFRR) ABS solenoid (SFRR) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.
      ABS Solenoid (SFRH) ABS solenoid (SFRH) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.
      VSC/TRC Solenoid (SMR) Master cut solenoid (SM2) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.
      VSC/TRC Solenoid (SMF) Master cut solenoid (SM1) Solenoid OFF / ON Operating sound of solenoid (clicking sound) can be heard.