ELECTRONICALLY CONTROLLED BRAKE SYSTEM DATA LIST / ACTIVE TEST


  1. 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 power switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the power switch on (IG).

    5. Turn the intelligent tester on.

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

    7. 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 / 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

      		 -
      Buzzer Skid control buzzer / ON or OFF

      ON: Buzzer on

      OFF: Buzzer 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

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

      ON: Switch on

      OFF: Switch off

      		 -
      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 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 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed
      Voltage of M/C Voltage of master cylinder pressure sensor / Min.: -2.5 V, Max.: 2.49 V - -
      Master Cylinder Sensor2 Master cylinder pressure sensor 2 / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed
      Voltage of M/C2 Voltage of master cylinder pressure sensor 2 / Min.: -2.5 V, Max.: 2.49 V - -
      Stroke Sensor Brake pedal stroke sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.8 to 1.2 V Reading increases when brake pedal is depressed
      Voltage of Stroke Sensor Voltage of brake pedal stroke sensor / Min.: -2.5 V, Max.: 2.49 V - -
      Stroke Sensor2 Brake pedal stroke sensor 2 / Min.: 0 V, Max.: 5 V When brake pedal released: 3.8 to 4.2 V Reading decreases when brake pedal is depressed
      Voltage of Stroke Sensor2 Voltage of brake pedal stroke sensor 2 / Min.: -2.5 V, Max.: 2.49 V - -
      Accumulator Sensor Accumulator pressure sensor / Min.: 0 V, Max.: 5 V Specified value: 2.6 to 3.8 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.: -18.18 m/s2, Max.: 18.18 m/s2

      		- During deceleration/acceleration: Changes continuously
      Zero Point of Decele

      Memorized zero value / Min.: -25.11 m/s2, Max.: 24.91 m/s2

      		- -
      Deceleration Sensor2

      Acceleration sensor 2 / Min.: -18.18 m/s2, Max.: 18.18 m/s2

      		- During deceleration/acceleration: Changes continuously
      Zero Point of Decele2

      Memorized zero value / Min.: -25.11 m/s2, Max.: 24.91 m/s2

      		- -
      Yaw Rate Sensor Yaw rate sensor 1 / Min.: -128 degrees/s, Max.: 127 degrees/s

      Vehicle stationary: 0 degrees/s

      Right turn: -128 to 0 degrees/s

      Left turn: 0 to 127 degrees/s

      		 -
      Zero Point of Yaw Rate Memorized zero value / Min.: -128 degrees/sec, Max.: 127 degrees/sec - After completing zero point calibration: 0 degrees/sec
      Yaw Rate Sensor2 Yaw rate sensor 2 / Min.: -128 degrees/s, Max.: 127 degrees/s

      Vehicle stationary: 0 degrees/s

      Right turn: -128 to 0 degrees/s

      Left turn: 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

      Left turn: Increase

      Right turn: Decrease

      		 -
      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 FR wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed
      FL W/C Sensor FL wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed
      RR W/C Sensor RR wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed
      RL W/C Sensor RL wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed
      Lateral G

      Lateral G / Min.: -25.11 m/s2, Max.: 24.91 m/s2

      		- During turning: Changes in proportion with acceleration
      Forward and Rearward G

      Forward and backward G / Min.: -25.11 m/s2, Max.: 24.91 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 rate
      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 Stop light control relay / ON or OFF

      ON: Relay on

      OFF: Relay off

      		 -
      Slip Indicator Light Slip indicator light / ON or OFF

      ON: Indicator light on

      OFF: Indicator light off

      		 -
      Stop Light System Indicator Light Multi-information display (Stop light system indicator) / ON or OFF

      ON: Display on

      OFF: Display off

      		 -
      FR Wheel Speed FR wheel speed sensor / Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      FL Wheel Speed FL wheel speed sensor / Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      RR Wheel Speed RR wheel speed sensor / Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      RL Wheel Speed RL wheel speed sensor / Min.: 0 km/h (0 mph), Max.: 326.4 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.: 326.4 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      FR Wheel Acceleration

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

      		- During deceleration/acceleration: Changes continuously
      FL Wheel Acceleration

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

      		- During deceleration/acceleration: Changes continuously
      RR Wheel Acceleration

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

      		- During deceleration/acceleration: Changes continuously
      RL Wheel Acceleration

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

      		- During deceleration/acceleration: Changes continuously
      Stop Light Relay Output Stop light control relay output / ON or OFF

      ON: Relay output on

      OFF: Relay output off

      		 -
      EBS Relay*1 Stop light control relay (Emergency brake signal) / ON or OFF

      ON: Relay on

      OFF: Relay off

      		 -
      FR Wheel ABS Ctrl Status FR wheel ABS control status / ON or OFF ON: During the control -
      FL Wheel ABS Ctrl Status FL wheel ABS control status / ON or OFF ON: During the control -
      RR Wheel ABS Ctrl Status RR wheel ABS control status / ON or OFF ON: During the control -
      RL Wheel ABS Ctrl Status RL wheel ABS control status / ON or OFF ON: During the control -
      BA Ctrl Status BA control status / ON or OFF ON: During the control -
      PBA Ctrl Status PBA control status / ON or OFF ON: During the control -
      TRC(TRAC) Ctrl Status TRC control status / ON or OFF ON: During the control -
      TRC(TRAC) Brake Ctrl Status TRC brake control status / ON or OFF ON: During the control -
      FR Wheel VSC Ctrl Status FR wheel VSC control status / ON or OFF ON: During the control -
      FL Wheel VSC Ctrl Status FL wheel VSC control status / ON or OFF ON: During the control -
      RR Wheel VSC Ctrl Status RR wheel VSC control status / ON or OFF ON: During the control -
      RL Wheel VSC Ctrl Status RL wheel VSC control status / ON or OFF ON: During the control -
      Accelerator Opening Angle % The difference of a present accelerator / Min.: 0%, Max.: 127% When the accelerator pedal is released: 0% During accelerator pedal operation: Changes in proportion with the pedal movement
      FR Regenerative Request FR regenerative request torque / Min.: 0 N*m, Max.: 65536 N*m -

      Changes according to brake pedal force

      (When depressing the brake pedal lightly after above 30 km/h (19 mph) or more, avoiding sudden braking.)
      FR Regenerative Operation FR regenerative operation torque / Min.: 0 N*m, Max.: 65536 N*m -

      Changes according to brake pedal force

      (When depressing the brake pedal lightly after above 30 km/h (19 mph) or more, avoiding sudden braking.)
      RR Regenerative Request RR regenerative request torque / Min.: 0 N*m, Max.: 65536 N*m -

      Changes according to brake pedal force

      (When depressing the brake pedal lightly after above 30 km/h (19 mph) or more, avoiding sudden braking.)
      RR Regenerative Operation RR regenerative operation torque / Min.: 0 N*m, Max.: 65536 N*m -

      Changes according to brake pedal force

      (When depressing the brake pedal lightly after above 30 km/h (19 mph) or more, avoiding sudden braking.)
      Regenerative Cooperation Regenerative cooperation / ON or OFF

      ON: Operate

      OFF: Not operate

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

      ON: Relay on

      OFF: Relay off

      		 -
      ECB* Motor Relay2 ABS motor relay 2 / ON or OFF

      ON: Relay on

      OFF: Relay off

      		 -
      ECB* Main Relay ABS main relay / ON or OFF

      ON: Relay on

      OFF: Relay off

      		 -
      ECB* Main Relay2 ABS main relay 2 / ON or OFF

      ON: Relay on

      OFF: Relay off

      		 -
      ECB* Solenoid (SMC1) Master cut solenoid (SMC1) / ON or OFF

      ON: Operate

      OFF: Not operate

      		 -
      ECB* Solenoid (SMC2) Master cut solenoid (SMC2) / ON or OFF

      ON: Operate

      OFF: Not operate

      		 -
      ECB* Solenoid (SCSS) Stroke simulator solenoid (SCSS) / ON or OFF

      ON: Operate

      OFF: Not operate

      		 -
      SLAFR Solenoid Current Linear solenoid (FRA) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SLAFL Solenoid Current Linear solenoid (FLA) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SLARR Solenoid Current Linear solenoid (RRA) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SLARL Solenoid Current Linear solenoid (RLA) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SLRFR Solenoid Current Linear solenoid (FRR) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SLRFL Solenoid Current Linear solenoid (FLR) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SLRRR Solenoid Current Linear solenoid (RRR) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SLRRL Solenoid Current Linear solenoid (RLR) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      FR Speed Open FR speed sensor open detection / Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      FL Speed Open FL speed sensor open detection / Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      RR Speed Open RR speed sensor open detection / Error or Normal

      Error: Momentary interruption

      Normal: Normal

      		 -
      RL Speed Open RL speed sensor 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 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 Stroke sensor open detection / Error or Normal

      Error: Momentary interruption

      Normal: Normal

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

      Error: Momentary interruption

      Normal: Normal

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

      Error: Momentary interruption

      Normal: Normal

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

      Error: Momentary interruption

      Normal: Normal

      		 -
      RL Wheel Cylinder Open RL wheel cylinder pressure sensor 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 VCM voltage value / Min.: 0 V, Max.: 10 V Specified value: 4.8 to 5.2 V -
      VCM2 Voltage Value VCM2 voltage value / Min.: 0 V, Max.: 10 V Specified value: 4.8 to 5.2 V -
      IG1 Voltage Value IG1 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage
      IG2 Voltage Value IG2 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage
      BS1 Voltage Value BS1 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage
      BS2 Voltage Value BS2 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage
      VM1 Voltage Value VM1 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage
      VM2 Voltage Value VM2 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage
      +B1 Voltage Value +B1 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage
      +B2 Voltage Value +B2 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage
      MT Voltage Value MT voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage
      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 DTC output is displayed

      *: Electronically Controlled Brake System

      *1: w/ Emergency Brake Signal

  2. 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 power switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the power switch on (IG).

    5. Turn the intelligent tester on.

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

    7. 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 ON/OFF Observe combination meter
      Brake Warning Light Brake warning light / red (malfunction) Warning light ON/OFF Observe combination meter
      ECB* Warning Light Brake warning light / yellow (minor malfunction) Warning light ON/OFF Observe combination meter
      Buzzer Skid control buzzer Buzzer ON/OFF Buzzer can be heard
      Stop Light Relay Stop light control relay Relay ON/OFF Stop lights come on
      ECB* Main Relay ABS main relay Relay ON/OFF -
      ECB* Main Relay2 ABS main relay 2 Relay ON/OFF -
      ECB* Motor Relay ABS motor relay Relay ON/OFF Operation sound of relay (clicking sound) and motor can be heard
      ECB* Motor Relay2 ABS motor relay 2 Relay ON/OFF Operation sound of relay (clicking sound) and motor can be heard
      ECB* Solenoid (SMC1) Master cut solenoid (SMC1) Solenoid ON/OFF Operation sound of solenoid (clicking sound) can be heard
      ECB* Solenoid (SMC2) Master cut solenoid (SMC2) Solenoid ON/OFF Operation sound of solenoid (clicking sound) can be heard
      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)
      Accumulator Zero Down Accumulator zero down activation Activation ON/OFF Brake fluid in the accumulator makes noise
      Stroke Simulator Cut Valve Pattern Stroke simulator cut valve pattern activation Activation ON/OFF (Difficult to identify visually)
      Actuator Air Bleeding Pattern Actuator air bleeding pattern activation Activation ON/OFF When accumulator pressure lowers, pump operation creates sound
      Power Supply Air Bleeding Pattern1 Power supply air bleeding pattern activation 1 Activation ON/OFF When accumulator pressure lowers, pump operation creates sound
      Power Supply Air Bleeding Pattern2 Power supply air bleeding pattern activation 2 Activation ON/OFF When accumulator pressure lowers, pump operation creates sound
      RL Wheel Air Bleeding Pattern RL wheel air bleeding pattern activation Activation ON/OFF When accumulator pressure lowers, pump operation creates sound
      RR Wheel Air Bleeding Pattern RR wheel air bleeding pattern activation Activation ON/OFF When accumulator pressure lowers, pump operation creates sound
      Pump Check Pattern Pump check pattern activation Activation ON/OFF When accumulator pressure lowers, pump operation creates sound
      Drain System Air Bleeding Pattern Drain system air bleeding pattern activation Activation ON/OFF When accumulator pressure lowers, pump operation creates sound
      ECB* Solenoid (SLRRL) Value Close Linear solenoid (RLR) valve Valve close ON/OFF -
      ECB* Solenoid (SLARL) Value Close Linear solenoid (RLA) valve Valve close ON/OFF -
      ECB* Solenoid (SLRRR) Value Close Linear solenoid (RRR) valve Valve close ON/OFF -
      ECB* Solenoid (SLARR) Value Close Linear solenoid (RRA) valve Valve close ON/OFF -
      ECB* Solenoid (SLRFL) Value Close Linear solenoid (FLR) valve Valve close ON/OFF -
      ECB* Solenoid (SLAFL) Value Close Linear solenoid (FLA) valve Valve close ON/OFF -
      ECB* Solenoid (SLRFR) Value Close Linear solenoid (FRR) valve Valve close ON/OFF -
      ECB* Solenoid (SLAFR) Value Close Linear solenoid (FRA) valve Valve close ON/OFF -
      TRC OFF Indicator Light Multi-information display (TRC OFF indicator) Display ON/OFF Observe combination meter
      VSC OFF Indicator Light VSC OFF indicator light Indicator light ON/OFF Observe combination meter
      Slip Indicator Light Slip indicator light Indicator light ON/OFF Observe combination meter
      EBS Relay*1 Stop light control relay (Emergency brake signal) Relay ON/OFF -
      Stop Light System Indicator Light*1 Multi-information display (Stop light system indicator) Display ON/OFF Observe combination meter

      *: Electronically Controlled Brake System

      *1: w/ Emergency Brake Signal