ELECTRONICALLY CONTROLLED BRAKE SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    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.

    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 assembly ON or OFF

      ON: Parking brake applied

      OFF: Parking brake released

      		 -
      TRC(TRAC)/VSC OFF SW VSC OFF switch (Combination switch assembly) ON or OFF

      ON: Switch on

      OFF: Switch off

      		 -
      Reservoir Warning SW Brake fluid level warning switch (Brake master cylinder reservoir assembly) 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 lever position information Fail, 1st-6th/B, D/M, P,N or R Actual shift lever position -
      Inspection Mode Inspection mode Other or Inspect

      Other: Normal mode

      Inspect: Inspection mode

      		 -
      Master Cylinder Sensor Master cylinder pressure sensor 1 Min.: 0.00 V, Max.: 5.00 V Brake pedal released: 0.30 to 0.70 V Reading increases when brake pedal is depressed
      Voltage of M/C Voltage of master cylinder pressure sensor 1 Min.: -2.50 V, Max.: 2.49 V - -
      Master Cylinder Sensor2 Master cylinder pressure sensor 2 Min.: 0.00 V, Max.: 5.00 V Brake pedal released: 0.30 to 0.70 V Reading increases when brake pedal is depressed
      Voltage of M/C2 Voltage of master cylinder pressure sensor 2 Min.: -2.50 V, Max.: 2.49 V - -
      Stroke Sensor Brake pedal stroke sensor assembly 1 Min.: 0.00 V, Max.: 5.00 V Brake pedal released: 0.80 to 1.20 V Reading increases when brake pedal is depressed
      Voltage of Stroke Sensor Voltage of brake pedal stroke sensor assembly 1 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: 3.80 to 4.20 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: 2.60 to 3.80 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
      FR W/C Sensor Front wheel cylinder pressure sensor RH Min.: 0.00 V, Max.: 5.00 V Brake pedal released: 0.30 to 0.70 V Reading increases when brake pedal is depressed
      FL W/C Sensor Front wheel cylinder pressure sensor LH Min.: 0.00 V, Max.: 5.00 V Brake pedal released: 0.30 to 0.70 V Reading increases when brake pedal is depressed
      RR W/C Sensor Rear wheel cylinder pressure sensor RH Min.: 0.00 V, Max.: 5.00 V Brake pedal released: 0.30 to 0.70 V Reading increases when brake pedal is depressed
      RL W/C Sensor Rear wheel cylinder pressure sensor LH Min.: 0.00 V, Max.: 5.00 V Brake pedal released: 0.30 to 0.70 V Reading increases when brake pedal is depressed
      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
      Stop Light Relay Semiconductor PWR integration ECU (STP2 terminal input) ON or OFF

      ON: Brake pedal depressed

      OFF: Brake pedal released

      		 -
      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

      Vehicle stopped: 0.00 m/s2

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

      Min.: -200.84 m/s2, Max.: 199.27 m/s2

      Vehicle stopped: 0.00 m/s2

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

      Min.: -200.84 m/s2, Max.: 199.27 m/s2

      Vehicle stopped: 0.00 m/s2

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

      Min.: -200.84 m/s2, Max.: 199.27 m/s2

      Vehicle stopped: 0.00 m/s2

      		During deceleration/acceleration: Changes continuously
      Stop Light Relay Output Semiconductor PWR integration ECU (STPO terminal output) ON or OFF

      ON: Output on

      OFF: Output off

      		 -
      EBS Relay Emergency brake signal operation (EXO terminal output) ON or OFF

      ON: Operation on

      OFF: Operation off

      		 -
      FR Wheel ABS Ctrl Status Front wheel RH ABS control status ON or OFF ON: During control -
      FL Wheel ABS Ctrl Status Front wheel LH ABS control status ON or OFF ON: During control -
      RR Wheel ABS Ctrl Status Rear wheel RH ABS control status ON or OFF ON: During control -
      RL Wheel ABS Ctrl Status Rear wheel LH ABS control status ON or OFF ON: During control -
      BA Ctrl Status BA control status ON or OFF ON: During control -
      PBA Ctrl Status PBA control status ON or OFF ON: During control w/ Pre-crash Safety system
      TRC(TRAC) Ctrl Status TRC control status ON or OFF ON: During control -
      TRC(TRAC) Brake Ctrl Status TRC brake control status ON or OFF ON: During control -
      FR Wheel VSC Ctrl Status Front wheel RH VSC control status ON or OFF ON: During control -
      FL Wheel VSC Ctrl Status Front wheel LH VSC control status ON or OFF ON: During control -
      RR Wheel VSC Ctrl Status Rear wheel RH VSC control status ON or OFF ON: During control -
      RL Wheel VSC Ctrl Status Rear wheel LH VSC control status ON or OFF ON: 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
      RR Regenerative Request RR regenerative request torque Min.: 0 Nm, Max.: 524280 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.)
      RR Regenerative Operation RR regenerative operation torque Min.: 0 Nm, Max.: 524280 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.)
      Regenerative Cooperation Regenerative cooperation ON or OFF

      ON: Operating

      OFF: Not operating

      		 -
      ECB Motor Relay ABS motor relay 1 ON or OFF

      ON: Relay on

      OFF: Relay off

      		 ECB: Electronically Controlled Brake System
      ECB Motor Relay2 ABS motor relay 2 ON or OFF

      ON: Relay on

      OFF: Relay off

      		 ECB: Electronically Controlled Brake System
      ECB Main Relay ABS main relay 1 ON or OFF

      ON: Relay on

      OFF: Relay off

      		 ECB: Electronically Controlled Brake System
      ECB Main Relay2 ABS main relay 2 ON or OFF

      ON: Relay on

      OFF: Relay off

      		 ECB: Electronically Controlled Brake System
      ECB Solenoid (SMC1) Master cut solenoid (SMC1) ON or OFF

      ON: Solenoid on

      OFF: Solenoid off

      		 ECB: Electronically Controlled Brake System
      ECB Solenoid (SMC2) Master cut solenoid (SMC2) ON or OFF

      ON: Solenoid on

      OFF: Solenoid off

      		 ECB: Electronically Controlled Brake System
      SLAFR Solenoid Current Linear solenoid additional valve (FRA) current Min.: 0.00 A, Max.: 3.00 A Brake pedal released: 0.00 A -
      SLAFL Solenoid Current Linear solenoid additional valve (FLA) current Min.: 0.00 A, Max.: 3.00 A Brake pedal released: 0.00 A -
      SLARR Solenoid Current Linear solenoid additional valve (RRA) current Min.: 0.00 A, Max.: 3.00 A Brake pedal released: 0.00 A -
      SLARL Solenoid Current Linear solenoid additional valve (RLA) current Min.: 0.00 A, Max.: 3.00 A Brake pedal released: 0.00 A -
      SLRFR Solenoid Current Linear solenoid reductional valve (FRR) current Min.: 0.00 A, Max.: 3.00 A Brake pedal released: 0.00 A -
      SLRFL Solenoid Current Linear solenoid reductional valve (FLR) current Min.: 0.00 A, Max.: 3.00 A Brake pedal released: 0.00 A -
      SLRRR Solenoid Current Linear solenoid reductional valve (RRR) current Min.: 0.00 A, Max.: 3.00 A Brake pedal released: 0.00 A -
      SLRRL Solenoid Current Linear solenoid reductional valve (RLR) current Min.: 0.00 A, Max.: 3.00 A Brake pedal released: 0.00 A -
      FR Speed Open Front speed sensor RH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      FL Speed Open Front speed sensor LH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      RR Speed Open Rear speed sensor RH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      RL Speed Open Rear speed sensor LH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      Yaw Rate Open Yaw rate sensor open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      Deceleration Open Acceleration sensor open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      Steering Open Steering angle sensor open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      Master Cylinder Open Master cylinder pressure sensor 1 open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      Master Cylinder2 Open Master cylinder pressure sensor 2 open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      Stroke Open Brake pedal stroke sensor assembly open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      FR Wheel Cylinder Open Front wheel cylinder pressure sensor RH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      FL Wheel Cylinder Open Front wheel cylinder pressure sensor LH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      RR Wheel Cylinder Open Rear wheel cylinder pressure sensor RH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      RL Wheel Cylinder Open Rear wheel cylinder pressure sensor LH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      Accumulator Open Accumulator pressure sensor open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      HV Communication Open Hybrid vehicle communication open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      VCM1 Voltage Value VCM1 voltage value Min.: 0.00 V, Max.: 10.00 V Specified value: 4.80 to 5.20 V -
      VCM2 Voltage Value VCM2 voltage value Min.: 0.00 V, Max.: 10.00 V Specified value: 4.80 to 5.20 V -
      IG1 Voltage Value IG1 voltage value Min.: 0.00 V, Max.: 20.00 V - Changes in proportion to auxiliary battery voltage
      IG2 Voltage Value IG2 voltage value Min.: 0.00 V, Max.: 20.00 V - Changes in proportion to auxiliary battery voltage
      BS1 Voltage Value BS1 voltage value Min.: 0.00 V, Max.: 20.00 V - Changes in proportion to auxiliary battery voltage
      BS2 Voltage Value BS2 voltage value Min.: 0.00 V, Max.: 20.00 V - Changes in proportion to auxiliary battery voltage
      VM1 Voltage Value VM1 voltage value Min.: 0.00 V, Max.: 20.00 V - Changes in proportion to auxiliary battery voltage
      VM2 Voltage Value VM2 voltage value Min.: 0.00 V, Max.: 20.00 V - Changes in proportion to auxiliary battery voltage
      +B1 Voltage Value +B1 voltage value Min.: 0.00 V, Max.: 20.00 V - Changes in proportion to auxiliary battery voltage
      +B2 Voltage Value +B2 voltage value Min.: 0.00 V, Max.: 20.00 V - Changes in proportion to auxiliary battery voltage
      MT Voltage Value MT voltage value Min.: 0.00 V, Max.: 20.00 V - -
      TRC/VSC Off Mode TRC/VSC off mode Normal, TRC OFF, Unknown or VSC OFF

      Normal: Normal mode

      TRC OFF: TRC off mode

      Unknown: Unspecified

      VSC OFF: VSC off mode

      		 -
      Number of DTC Number of DTC Min.: 0, Max.: 255 - Number of DTCs output is displayed
      Hazard Switch History Hazard warning switch history Incomplete or Complete

      Incomplete: Incomplete

      Complete: Complete

      		 -
      ACC Low Pressure History Trip Counter Number of times power switch turned on (IG) and then off after ACC low pressure condition occurs Min.: 0, Max.: 255 - -
      ACC Low Pressure History Accumulation Counter Total number of times ACC low pressure condition occurs while brake control system not prepared Min.: 0, Max.: 255 - -

  2. ACTIVE TEST

    Tech Tips

    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 Semiconductor PWR integration ECU ECU (Stop light output) ON/OFF Stop lights come on
      ECB Main Relay ABS main relay 1 Relay ON/OFF ECB: Electronically Controlled Brake System
      ECB Main Relay2 ABS main relay 2 Relay ON/OFF ECB: Electronically Controlled Brake System
      ECB Motor Relay ABS motor relay 1 Relay ON/OFF

      • Operation sound of relay (clicking sound) and pump motor can be heard

      • ECB: Electronically Controlled Brake System
      ECB Motor Relay2 ABS motor relay 2 Relay ON/OFF

      • Operation sound of relay (clicking sound) and pump motor can be heard

      • ECB: Electronically Controlled Brake System
      ECB Solenoid (SMC1) Master cut solenoid (SMC1) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      ECB Solenoid (SMC2) Master cut solenoid (SMC2) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      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
      RL Wheel Air Bleeding Pattern Rear wheel LH air bleeding pattern activation Activation ON/OFF When accumulator pressure drops, pump operation creates sound
      RR Wheel Air Bleeding Pattern Rear wheel RH air bleeding pattern activation Activation ON/OFF When accumulator pressure drops, pump operation creates sound
      Pump Check Pattern Pump check pattern activation Activation ON/OFF When accumulator pressure drops, pump operation creates sound
      Drain System Air Bleeding Pattern Drain system air bleeding pattern activation Activation ON/OFF When accumulator pressure drops, pump operation creates sound
      ECB Solenoid (SLRRL) Linear solenoid reduction valve (SLR) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      ECB Solenoid (SLARL) Linear solenoid addition valve (SLA) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      ECB Solenoid (SLRRR) Linear solenoid reduction valve (SLR) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      ECB Solenoid (SLARR) Linear solenoid addition valve (SLA) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      ECB Solenoid (SLRFL) Linear solenoid reduction valve (SLR) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      ECB Solenoid (SLAFL) Linear solenoid addition valve (SLA) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      ECB Solenoid (SLRFR) Linear solenoid reduction valve (SLR) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      ECB Solenoid (SLAFR) Linear solenoid addition valve (SLA) Solenoid ON/OFF ECB: Electronically Controlled Brake System
      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 Emergency brake signal operation Operation ON/OFF Stop lights blink