Anti-Lock Brake System Data List / Active Test

  1. DATA LIST

  1. ACTIVE TEST

Anti-Lock Brake System -- Data List / Active Test



DATA LIST
HINT:
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.
NOTICE:
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 GTS to the DLC3.

  4. Turn the ignition switch to ON.

  5. Turn ON the GTS.

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

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

    ABS/VSC/TRC
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    ABS Warning Light
    		ABS warning light/ ON or OFF
    		OFF
    		-
    Brake Warning Light
    		Brake warning light/ ON or OFF
    		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
    		-
    Brake Pedal Load Sensing SW
    		Brake pedal load sensing switch/ ON or OFF
    		ON: Brake pedal depressed beyond specified point
    OFF: Brake pedal not depressed beyond specified point
    		-
    Master Cylinder Sensor
    		Master cylinder pressure sensor reading/ Min.: 0.00 V, Max.: 5.00 V
    		When brake pedal is released: 0.3 to 0.9 V
    		The value increases when the 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
    		-
    Deceleration Sensor
    		Acceleration sensor/ Min.: -18.525 m/s2, Max.: 18.387 m/s2
    		-
    		Changes continuously during acceleration/deceleration.
    Deceleration Sensor2
    		Acceleration sensor 2/ Min.: -18.525 m/s2, Max.: 18.387 m/s2
    		-
    		Changes continuously during acceleration/deceleration.
    Forward and Rearward G
    		Forward and backward G/ Min.: -25.10 m/s2, Max.: 24.90 m/s2
    		-
    		Changes in proportion to acceleration during acceleration/deceleration.
    L4 Switch
    		Transfer L4 detection switch/ ON or OFF
    		ON: Transfer L4 position
    OFF: Transfer except L4 position
    		-
    FR Wheel Speed
    		FR wheel speed sensor value/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
    		Vehicle stopped:
    0 km/h
    		No large fluctuations when driving at a constant speed.
    FL Wheel Speed
    		FL wheel speed sensor value/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
    		Vehicle stopped:
    0 km/h
    		No large fluctuations when driving at a constant speed.
    RR Wheel Speed
    		RR wheel speed sensor value/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
    		Vehicle stopped:
    0 km/h
    		No large fluctuations when driving at a constant speed.
    RL Wheel Speed
    		RL wheel speed sensor value/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
    		Vehicle stopped:
    0 km/h
    		No large fluctuations when driving at a constant speed.
    Vehicle Speed
    		Maximum wheel speed sensor value/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
    		Vehicle stopped:
    0 km/h
    		No large fluctuations when driving at a constant speed.
    FR Wheel Acceleration
    		FR wheel acceleration/ Min.: -200.84 m/s2, Max.: 199.27 m/s2
    		-
    		Changes continuously during acceleration/deceleration.
    FL Wheel Acceleration
    		FL wheel acceleration/ Min.: -200.84 m/s2, Max.: 199.27 m/s2
    		-
    		Changes continuously during acceleration/deceleration.
    RR Wheel Acceleration
    		RR wheel acceleration/ Min.: -200.84 m/s2, Max.: 199.27 m/s2
    		-
    		Changes continuously during acceleration/deceleration.
    RL Wheel Acceleration
    		RL wheel acceleration/ Min.: -200.84 m/s2, Max.: 199.27 m/s2
    		-
    		Changes continuously during acceleration/deceleration.
    FR Wheel Direction
    		Front wheel RH direction signal/ Forward or Back
    		Forward: Forward
    Back: Backward
    		-
    FL Wheel Direction
    		Front wheel LH direction signal/ Forward or Back
    		Forward: Forward
    Back: Backward
    		-
    RR Wheel Direction
    		Rear wheel RH direction signal/ Forward or Back
    		Forward: Forward
    Back: Backward
    		-
    RL Wheel Direction
    		Rear wheel LH direction signal/ Forward or Back
    		Forward: Forward
    Back: Backward
    		-
    EBS Relay
    		Stop light control ECU (Emergency brake signal)/ ON or OFF
    		ON: Stop light control ECU on
    OFF: Stop light control ECU off
    		-
    FR Wheel ABS Ctrl Status
    		FR wheel ABS control status/ ON or OFF
    		ON: During control
    OFF: Not during control
    		-
    FL Wheel ABS Ctrl Status
    		FL wheel ABS control status/ ON or OFF
    		ON: During control
    OFF: Not during control
    		-
    RR Wheel ABS Ctrl Status
    		RR wheel ABS control status/ ON or OFF
    		ON: During control
    OFF: Not during control
    		-
    RL Wheel ABS Ctrl Status
    		RL wheel ABS control status/ ON or OFF
    		ON: During control
    OFF: Not during control
    		-
    RR Wheel EBD Ctrl Status
    		RR wheel EBD control status/ ON or OFF
    		ON: During control
    OFF: Not during control
    		-
    RL Wheel EBD Ctrl Status
    		RL wheel EBD control status/ ON or OFF
    		ON: During control
    OFF: Not during control
    		-
    BA Ctrl Status
    		BA control status/ ON or OFF
    		ON: During control
    OFF: Not during control
    		-
    Engine Revolutions
    		Engine speed/ Min.: 0 rpm, Max.: 65535 rpm
    		Engine stopped: 0 rpm
    		-
    Accelerator Opening Angle %*1
    		Percentage of accelerator pedal opening angle/ Min.: 0.0%, Max.: 128.0%
    		When accelerator pedal released: 0%
    		Changes in proportion to the movement of the pedal during accelerator pedal operation.
    Solenoid Relay
    		ABS solenoid relay/ ON or OFF
    		ON: Solenoid relay ON
    OFF: Solenoid relay OFF
    		-
    ECB*2 Motor Relay
    		ABS motor relay/ ON or OFF
    		ON: Motor relay ON
    OFF: Motor relay OFF
    		The item is displayed on the GTS but not used.
    Fail Safe Motor Relay
    		ABS motor fail -safe relay/ ON or OFF
    		ON: Motor relay ON
    OFF: Motor relay OFF
    		-
    TR(A)C/VSC Solenoid (SM2)
    		Master cut solenoid (SM2)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    TR(A)C/VSC Solenoid (SM1)
    		Master cut solenoid (SM1)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    ABS Solenoid (SFRH)
    		ABS solenoid (SFRH)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    ABS Solenoid (SFRR)
    		ABS solenoid (SFRR)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    ABS Solenoid (SFLH)
    		ABS solenoid (SFLH)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    ABS Solenoid (SFLR)
    		ABS solenoid (SFLR)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    ABS Solenoid (SRRH)
    		ABS solenoid (SRRH)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    ABS Solenoid (SRRR)
    		ABS solenoid (SRRR)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    ABS Solenoid (SRLH)
    		ABS solenoid (SRLH)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    ABS Solenoid (SRLR)
    		ABS solenoid (SRLR)/ ON or OFF
    		ON: Operating
    OFF: Not operating
    		-
    FR Speed Open
    		Front speed sensor RH open circuit detection/ Error or Normal
    		Normal
    		-
    FL Speed Open
    		Front speed sensor LH open circuit detection/ Error or Normal
    		Normal
    		-
    RR Speed Open
    		Rear speed sensor RH open circuit detection/ Error or Normal
    		Normal
    		-
    RL Speed Open
    		Rear speed sensor LH open circuit detection/ Error or Normal
    		Normal
    		-
    Deceleration Open
    		Acceleration sensor open circuit detection/ Error or Normal
    		Normal
    		-
    Master Cylinder Open
    		Master cylinder pressure sensor open circuit detection/ Error or Normal
    		Normal
    		-
    Wheelbase Information*1
    		Wheelbase information/ Short, Long, Without
    		Short: Short wheelbase
    Long: Long wheelbase
    		-
    IG1 Voltage Value
    		IG1 voltage/ Min.: 0.00 V, Max.: 20.00 V
    		Ignition switch ON: 11 to 14 V
    		-
    MT Voltage Value
    		Motor driving monitor voltage/ Min.: 0.00 V, Max.: 20.00 V
    		-
    		-
    Number of DTC
    		Number of DTC stored/ Min.: 0, Max.: 255
    		0
    		-
    IG Voltage Value Decreased
    		IG voltage value decrease detection/ Error or Normal
    		Normal
    		-
    IG Voltage Value Increased
    		IG voltage value increase detection/ Error or Normal
    		Normal
    		-
    FR Speed Sensor Voltage Open
    		Front speed sensor RH voltage open circuit detection/ Error or Normal
    		Normal
    		-
    FL Speed Sensor Voltage Open
    		Front speed sensor LH voltage open circuit detection/ Error or Normal
    		Normal
    		-
    RR Speed Sensor Voltage Open
    		Rear speed sensor RH voltage open circuit detection/ Error or Normal
    		Normal
    		-
    RL Speed Sensor Voltage Open
    		Rear speed sensor LH voltage open circuit detection/ Error or Normal
    		Normal
    		-
    M/C Pressure Sensor Noise
    		Master cylinder pressure sensor noise detection/ Error or Normal
    		Normal
    		-
    Brake Pedal Switch Open
    		Brake pedal load sensing switch open circuit detection/ Error or Normal
    		Normal
    		-
    Yaw Rate Sensor Voltage Open
    		Acceleration sensor voltage open circuit detection/ Error or Normal
    		Normal
    		-
    Hazard Switch History
    		Hazard warning switch history/ Incomplete or Completel
    		Normal
    		-

    1. *1: for 2TR-FE
    2. *2: Electronically Controlled Brake

ACTIVE TEST
HINT:
Using the GTS 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 GTS to the DLC3.

  4. Turn the ignition switch to ON.

  5. Turn ON the GTS.

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

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

    ABS/VSC/TRC
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    ABS Warning Light
    		ABS warning light
    		Warning light ON/OFF
    		Observe the combination meter.
    Brake Warning Light
    		Brake warning light
    		Warning light ON/OFF
    		Observe the combination meter.
    Solenoid Relay
    		Solenoid relay
    		Relay ON/OFF
    		-
    Motor Relay
    		Motor relay
    		Relay ON/OFF
    		The operating sound of the motor can be heard.
    ABS Solenoid (SRLR)
    		ABS solenoid (SRLR)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    ABS Solenoid (SRLH)
    		ABS solenoid (SRLH)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    ABS Solenoid (SRRR)
    		ABS solenoid (SRRR)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    ABS Solenoid (SRRH)
    		ABS solenoid (SRRH)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    ABS Solenoid (SFLR)
    		ABS solenoid (SFLR)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    ABS Solenoid (SFLH)
    		ABS solenoid (SFLH)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    ABS Solenoid (SFRR)
    		ABS solenoid (SFRR)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    ABS Solenoid (SFRH)
    		ABS solenoid (SFRH)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    VSC/TRC Solenoid (SMR)
    		Master cut solenoid (SM2)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    VSC/TRC Solenoid (SMF)
    		Master cut solenoid (SM1)
    		Solenoid ON/OFF
    		The operating sound of the solenoid (clicking sound) can be heard.
    EBS Relay
    		Stop light control ECU (Emergency brake signal)
    		Stop light control ECU assembly ON/OFF
    		Make sure the hazard warning switch is off and the stop light switch is on when performing this Active Test.
    ABS Solenoid
    		Selection of multiple ABS solenoids (SFRH, SFLH, SRRH, SRLH, SFRR, SFLR, SRRR and SRLR) possible
    		Start/Stop
    		Start: When Start is selected, the selected solenoids turn ON.
    Stop: When Stop is selected, the selected solenoids turn OFF.
    VSC/TRC(TRAC) Solenoid
    		Selection of master cut solenoids SMR (SM2) and SMF (SM1) possible
    		Start/Stop
    		Start: When Start is selected, the selected solenoids turn ON.
    Stop: When Stop is selected, the selected solenoids turn OFF.