ELECTRONICALLY CONTROLLED BRAKE SYSTEM DATA LIST / ACTIVE TEST

  1. DATA LIST

    Tip:

    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.

    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 power switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the power switch on (IG).

    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

      ON: Warning light on

      OFF: Warning light off

      -

      Brake Warning Light

      Brake warning light / red (malfunction)

      ON or OFF

      ON: Warning light on

      OFF: Warning light off

      -

      ECB Warning Light

      Brake warning light / yellow (minor malfunction)

      ON or OFF

      ON: Warning light on

      OFF: Warning light off

      ECB: Electronically Controlled Brake System

      Buzzer

      Meter buzzer

      ON or OFF

      ON: Buzzer on

      OFF: Buzzer off

      -

      Stop Light SW

      Stop light switch assembly

      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

      -

      Reservoir Warning SW

      Brake fluid level warning switch

      ON or OFF

      ON: Reservoir level low

      OFF: Reservoir level normal

      -

      Main Idle SW

      Main idle switch

      ON or OFF

      ON: Accelerator pedal released

      OFF: Accelerator pedal depressed

      -

      Shift Lever Position

      Shift position information

      Fail, 1st-6th/B, D/M, P,N or R

      Actual shift position

      -

      Inspection Mode

      Inspection mode

      Other or Inspect

      Other: Normal mode

      Inspect: Inspection mode

      -

      Regulator Pressure Sensor Output

      Regulator pressure sensor output

      Min.: 0.00 V, Max.: 5.00 V

      Brake pedal released: 0.10 to 0.90 V

      Reading increases when brake pedal is depressed

      Stroke Sensor

      Brake pedal stroke sensor assembly

      Min.: 0.00 V, Max.: 5.00 V

      Brake pedal released: 0.65 to 1.35 V

      Reading increases when brake pedal is depressed

      Voltage of Stroke Sensor

      Voltage of brake pedal stroke sensor assembly

      Min.: -2.50 V, Max.: 2.49 V

      -

      -

      Stroke Sensor2

      Brake pedal stroke sensor assembly 2

      Min.: 0.00 V, Max.: 5.00 V

      Brake pedal released: 3.65 to 4.35 V

      Reading decreases when brake pedal is depressed

      Voltage of Stroke Sensor2

      Voltage of brake pedal stroke sensor assembly 2

      Min.: -2.50 V, Max.: 2.49 V

      -

      -

      Accumulator Sensor

      Accumulator pressure sensor

      Min.: 0.00 V, Max.: 5.00 V

      Specified value: 2.90 to 4.20 V

      When brake fluid is stored in the accumulator: Accumulator pressure changes in accordance with volume of fluid stored in the accumulator

      Deceleration Sensor

      Acceleration sensor 1

      Min.: -18.525 m/s2, Max.: 18.387 m/s2

      -

      During deceleration/acceleration: Changes continuously

      Zero Point of Decele

      Memorized zero value

      Min.: -25.10 m/s2, Max.: 24.90 m/s2

      -

      -

      Deceleration Sensor2

      Acceleration sensor 2

      Min.: -18.525 m/s2, Max.: 18.387 m/s2

      -

      During deceleration/acceleration: Changes continuously

      Zero Point of Decele2

      Memorized zero value

      Min.: -25.10 m/s2, Max.: 24.90 m/s2

      -

      -

      Yaw Rate Sensor

      Yaw rate sensor 1

      Min.: -128 degrees/s, Max.: 127 degrees/s

      Vehicle stationary: 0 degrees/s

      Turning right: -128 to 0 degrees/s

      Turning left: 0 to 127 degrees/s

      -

      Zero Point of Yaw Rate

      Memorized zero value

      Min.: -128 degrees, Max.: 127 degrees

      -

      After completing zero point calibration: 0 degrees

      Yaw Rate Sensor2

      Yaw rate sensor 2

      Min.: -128 degrees/s, Max.: 127 degrees/s

      Vehicle stationary: 0 degrees/s

      Turning right: -128 to 0 degrees/s

      Turning left: 0 to 127 degrees/s

      -

      Zero Point of Yaw Rate2

      Memorized zero value

      Min.: -128 degrees/s, Max.: 127 degrees/s

      -

      After completing zero point calibration: 0 degrees/s

      Steering Angle Sensor

      Steering angle sensor

      Min.: -3276.8 degrees, Max.: 3276.7 degrees

      Turning left: Increases

      Turning right: Decreases

      -

      Zero Point of Steering Angle

      Memorized zero value

      Min.: -3276.8 degrees, Max.: 3276.7 degrees

      -

      After clearing zero point calibration: 0 degrees

      Lateral G

      Lateral G

      Min.: -25.10 m/s2, Max.: 24.90 m/s2

      -

      During turning: Changes in proportion with lateral acceleration

      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

      Yaw Rate Value

      Yaw rate value

      Min.: -128 degrees/s, Max.: 127 degrees/s

      -

      During turning: Changes in proportion with yaw

      Steering Angle Value

      Steering angle value

      Min.: -3276.8 degrees, Max.: 3276.7 degrees

      -

      During steering operation: Changes in proportion with steering wheel rotation

      Slip Indicator Light

      Slip indicator light

      ON or OFF

      ON: Indicator light on

      OFF: Indicator light off

      -

      FR Wheel Speed

      Front speed sensor RH

      Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped: 0 km/h (0 mph)

      When driving at constant speed: No large fluctuations

      FL Wheel Speed

      Front speed sensor LH

      Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped: 0 km/h (0 mph)

      When driving at constant speed: No large fluctuations

      RR Wheel Speed

      Rear speed sensor RH

      Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped: 0 km/h (0 mph)

      When driving at constant speed: No large fluctuations

      RL Wheel Speed

      Rear speed sensor LH

      Min.: 0 km/h (0 mph), Max.: 326 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

      Min.: 0 km/h (0 mph), Max.: 326 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

      Stop Light Relay Output

      • Stop light control ECU assembly input*1

      • Stop light control relay (STPO terminal output)*2

      ON or OFF

      • OFF: ECU (Relay) Output off*1

        ON: ECU (Relay) Output on*1

      • OFF: Output off*2

        ON: Output on*2

      -

      EBS Relay

      Stop light control ECU assembly (Emergency brake signal operation status)*2

      ON or OFF

      OFF: Operation off

      This item is displayed on the GTS but is not used

      FR Wheel ABS Ctrl Status

      Front wheel RH ABS control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      FL Wheel ABS Ctrl Status

      Front wheel LH ABS control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      RR Wheel ABS Ctrl Status

      Rear wheel RH ABS control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      RL Wheel ABS Ctrl Status

      Rear wheel LH ABS control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      RR Wheel EBD Ctrl Status

      Rear wheel RH EBD control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      RL Wheel EBD Ctrl Status

      Rear wheel LH 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

      -

      PBA Ctrl Status

      PBA control status

      ON or OFF

      ON: During control

      OFF: Not during control

      Used in vehicles with pre-collision system

      TRC(TRAC) Ctrl Status

      TRC control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      TRC(TRAC) Engine Ctrl Status

      TRC engine control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      TRC(TRAC) Brake Ctrl Status

      TRC brake control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      FR Wheel VSC Ctrl Status

      Front wheel RH VSC control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      FL Wheel VSC Ctrl Status

      Front wheel LH VSC control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      RR Wheel VSC Ctrl Status

      Rear wheel RH VSC control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      RL Wheel VSC Ctrl Status

      Rear wheel LH VSC control status

      ON or OFF

      ON: During control

      OFF: Not during control

      -

      Accelerator Opening Angle %

      Percentage of accelerator pedal opening angle

      Min.: 0.0%, Max.: 128.0%

      Accelerator pedal released: 0.0%

      During accelerator pedal operation: Changes in proportion with the pedal movement

      Regenerative Cooperation

      Regenerative cooperation

      ON or OFF

      ON: Operating

      OFF: Not operating

      -

      FR Regenerative Request

      FR regenerative request torque

      Min.: 0 Nm, Max.: 1048560 Nm

      -

      Changes according to brake pedal force

      (When depressing the brake pedal lightly after reaching 30 km/h (19 mph) or more, avoiding sudden braking.)

      FR Regenerative Operation

      FR regenerative operation torque

      Min.: 0 Nm, Max.: 1048560 Nm

      -

      Changes according to brake pedal force

      (When depressing the brake pedal lightly after reaching 30 km/h (19 mph) or more, avoiding sudden braking.)

      ECB Motor Relay

      ABS motor relay

      ON or OFF

      ON: Relay on

      OFF: Relay off

      ECB: Electronically Controlled Brake System

      ECB Main Relay

      ABS main relay

      ON or OFF

      ON: Relay on

      OFF: Relay off

      ECB: Electronically Controlled Brake System

      ABS Solenoid (SFRH)

      Holding solenoid valve (FRH)

      ON or OFF

      ON: Operating

      OFF: Not operating

      -

      ABS Solenoid (SFRR)

      Reduction solenoid valve (FRR)

      ON or OFF

      ON: Operating

      OFF: Not operating

      -

      ABS Solenoid (SFLH)

      Holding solenoid valve (FLH)

      ON or OFF

      ON: Operating

      OFF: Not operating

      -

      ABS Solenoid (SFLR)

      Reduction solenoid valve (FLR)

      ON or OFF

      ON: Operating

      OFF: Not operating

      -

      ABS Solenoid (SRRH)

      Holding solenoid valve (RRH)

      ON or OFF

      ON: Operating

      OFF: Not operating

      -

      ABS Solenoid (SRRR)

      Reduction solenoid valve (RRR)

      ON or OFF

      ON: Operating

      OFF: Not operating

      -

      ABS Solenoid (SRLH)

      Holding solenoid valve (RLH)

      ON or OFF

      ON: Operating

      OFF: Not operating

      -

      ABS Solenoid (SRLR)

      Reduction solenoid valve (RLR)

      ON or OFF

      ON: Operating

      OFF: Not operating

      -

      ECB Solenoid (SRC)

      Regulator cut solenoid valve (SRC)

      ON or OFF

      ON: Operating

      OFF: Not operating

      ECB: Electronically Controlled Brake System

      ECB Solenoid (SCC)

      Switching solenoid valve (SCC)

      ON or OFF

      ON: Operating

      OFF: Not operating

      ECB: Electronically Controlled Brake System

      ECB Solenoid (SMC)

      Master cut solenoid valve (SMC)

      ON or OFF

      ON: Operating

      OFF: Not operating

      ECB: Electronically Controlled Brake System

      ECB Solenoid (SSC)

      Simulator cut solenoid valve (SSC)

      ON or OFF

      ON: Operating

      OFF: Not operating

      ECB: Electronically Controlled Brake System

      Regulator Pressure Sensor Correction Voltage

      Regulator pressure sensor voltage

      Min.: -2.50 V, Max.: 2.49 V

      -

      -

      FR Speed Open

      Front speed sensor RH open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      FL Speed Open

      Front speed sensor LH open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      RR Speed Open

      Rear speed sensor RH open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      RL Speed Open

      Rear speed sensor LH open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      Yaw Rate Open

      Yaw rate sensor open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      Deceleration Open

      Acceleration sensor open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      Steering Open

      Steering angle sensor open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      Master Cylinder Open

      Regulator pressure sensor open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      Stroke Open

      Brake pedal stroke sensor assembly open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      FR Wheel Cylinder Open

      Wheel cylinder pressure sensor open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      Accumulator Open

      Accumulator pressure sensor open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      HV Communication Open

      Hybrid vehicle communication open detection

      Error or Normal

      Normal: Normal

      Error: Momentary interruption

      TRC/VSC Off Mode

      TRC/VSC off mode

      Normal, TRC OFF or VSC OFF

      Normal: Normal mode

      TRC OFF: TRC off mode

      VSC OFF: VSC off mode

      -

      Number of DTC

      Number of DTC

      Min.: 0, Max.: 255

      -

      Number of DTCs output is displayed

      Wheel Cylinder Pressure Sensor

      Wheel cylinder pressure sensor

      Min.: 0.00 V, Max.: 5.00 V

      Brake pedal released: 0.10 to 0.90 V

      Reading increases when brake pedal is depressed

      Regulator Pressure Sensor Output After Filter

      Regulator pressure sensor output after filter

      Min.: -1.00 Mpa, Max.: 23.99 Mpa

      -

      -

      Regulator Pressure Sensor Variation

      Regulator pressure sensor variation

      Min.: -30 Mpa/s, Max.: 225 Mpa/s

      -

      -

      SLA Solenoid Current

      Linear solenoid additional valve (SLA) current

      Min.: 0.00 A, Max.: 3.00 A

      Brake pedal released: 0.00 A

      -

      SLR Solenoid Current

      Linear solenoid reduction valve (SLR) current

      Min.: 0.00 A, Max.: 3.00 A

      Brake pedal released: 0.00 A

      -

      SSC Solenoid Current

      Simulator cut solenoid valve (SSC) current

      Min.: 0.00 A, Max.: 3.00 A

      Brake pedal released: 0.00 A

      -

      SCC Solenoid Current

      Switching solenoid valve (SCC) current

      Min.: 0.00 A, Max.: 3.00 A

      Brake pedal released: 0.00 A

      -

      SMC Solenoid Current

      Master cut solenoid valve (SMC) current

      Min.: 0.00 A, Max.: 3.00 A

      Brake pedal released: 0.00 A

      -

      SRC Solenoid Current

      Regulator cut solenoid valve (SRC) current

      Min.: 0.00 A, Max.: 3.00 A

      Brake pedal released: 0.00 A

      -

      • *1: for LHD

      • *2: for RHD

  2. ACTIVE TEST

    Tip:

    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 power switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the power switch on (IG).

    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

      Brake Warning Light

      Brake warning light / red (malfunction)

      Warning light ON/OFF

      Observe combination meter assembly

      ECB Warning Light

      Brake warning light / yellow (minor malfunction)

      Warning light ON/OFF

      • Observe combination meter assembly

      • ECB: Electronically Controlled Brake System

      Buzzer

      Meter buzzer

      Buzzer ON/OFF

      Buzzer can be heard

      Stop Light Relay

      • Stop light control ECU assembly*1

      • Stop light control relay*2

      ECU (Relay) ON/OFF*1

      Relay ON/OFF*2

      Stop lights come on

      Vehicle condition: Vehicle stopped

      ECB Main Relay

      ABS main relay

      Relay ON/OFF

      ECB: Electronically Controlled Brake System

      ECB Motor Relay

      ABS motor relay

      Relay ON/OFF

      ECB: Electronically Controlled Brake System

      ABS Solenoid (SRLR)

      Reduction solenoid valve (RLR)

      Solenoid ON/OFF

      -

      ABS Solenoid (SRLH)

      Holding solenoid valve (RLH)

      Solenoid ON/OFF

      -

      ABS Solenoid (SRRR)

      Reduction solenoid valve (RRR)

      Solenoid ON/OFF

      -

      ABS Solenoid (SRRH)

      Holding solenoid valve (RRH)

      Solenoid ON/OFF

      -

      ABS Solenoid (SFLR)

      Reduction solenoid valve (FLR)

      Solenoid ON/OFF

      -

      ABS Solenoid (SFLH)

      Holding solenoid valve (FLH)

      Solenoid ON/OFF

      -

      ABS Solenoid (SFRR)

      Reduction solenoid valve (FRR)

      Solenoid ON/OFF

      -

      ABS Solenoid (SFRH)

      Holding solenoid valve (FRH)

      Solenoid ON/OFF

      -

      ECB Control Invalid

      Electronically controlled brake system control invalid

      Control invalid ON/OFF

      • Electronically controlled brake system control is disabled (braking with no accumulator assist)

      • ECB: Electronically Controlled Brake System

      Accumulator Zero Down

      Reduction of pressure in accumulator

      Activation ON/OFF

      Brake fluid in the accumulator makes noise

      Actuator Air Bleeding Pattern

      Actuator air bleeding pattern activation

      Activation ON/OFF

      When accumulator pressure drops, pump operation creates sound

      Power Supply Air Bleeding Pattern1

      Power supply air bleeding pattern activation 1

      Activation ON/OFF

      When accumulator pressure drops, pump operation creates sound

      Power Supply Air Bleeding Pattern2

      Power supply air bleeding pattern activation 2

      Activation ON/OFF

      When accumulator pressure drops, pump operation creates sound

      TRC(TRAC) OFF Indicator Light

      Multi-information display (TRC OFF message)

      Display ON/OFF

      Observe combination meter assembly

      VSC OFF Indicator Light

      VSC OFF indicator light

      Indicator light ON/OFF

      Observe combination meter assembly

      Slip Indicator Light

      Slip indicator light

      Indicator light ON/OFF

      Observe combination meter assembly

      EBS Relay

      Stop light control ECU assembly output (Emergency brake signal operation)*2

      Stop light control ECU assembly (Emergency brake signal operation) ON/OFF

      This item is displayed on the GTS but is not used

      ECB Solenoid (SLR)

      Linear solenoid reduction valve (SLR)

      Solenoid ON/OFF

      ECB: Electronically Controlled Brake System

      ECB Solenoid (SLA)

      Linear solenoid additional valve (SLA)

      Solenoid ON/OFF

      ECB: Electronically Controlled Brake System

      Stroke Simulator Cut Valve Pattern

      Simulator cut solenoid valve (SSC)

      Pattern activation ON/OFF

      Difficult to identify visually

      ECB Solenoid (SRC)

      Regulator cut solenoid valve (SRC)

      Solenoid ON/OFF

      • Operation sound of solenoid (clicking sound) can be heard

      • ECB: Electronically Controlled Brake System

      ECB Solenoid (SMC)

      Master cut solenoid valve (SMC)

      Solenoid ON/OFF

      • Operation sound of solenoid (clicking sound) can be heard

      • ECB: Electronically Controlled Brake System

      ECB Solenoid (SCC)

      Switching solenoid valve (SCC)

      Solenoid ON/OFF

      • Operation sound of solenoid (clicking sound) can be heard

      • ECB: Electronically Controlled Brake System

      ECB Solenoid (SSC)

      Simulator cut solenoid valve (SSC)

      Solenoid ON/OFF

      • Operation sound of solenoid (clicking sound) can be heard

      • ECB: Electronically Controlled Brake System

      ECB Solenoid (SMC/SRC/SCC)

      Switching solenoid valve (SMC/SRC/SCC)

      Solenoid ON/OFF

      • Operation sound of solenoid (clicking sound) can be heard

      • ECB: Electronically Controlled Brake System

      ABS Solenoid

      Solenoid valve (FRH, FRR, FLH, FLR, RRH, RRR, RLH or RLR)

      Solenoid SFRH/SFRR/SFLH/SFLR/SRRH/SRRR/SRLH/SRLR

      Operation sound of solenoid (clicking sound) can be heard

      • *1: for LHD

      • *2: for RHD