LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2013 >> Prius Three >> Repair and Diagnosis (Single Page) >> External Pages >> Different variant/trim >> Section 21 (Electronically Controlled Brake System (Diagnostics - Introduction) (Plug-In)) >> Electronically Controlled Brake System >> Data List / Active Test >> Data List / Active Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data List / Active Test

WARNING: This page is about a different variant/trim than selected.
  1. DATA LIST 

    HINT: 

    Using the Techstream 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 Techstream to the DLC3.
    4. Turn the power switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
    7. According to the display on the Techstream, read the Data List.
      ABS/VSC/TRAC

      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 Meter 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      		 -
      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      		 -
      Regulator Pressure Sensor Output Regulator pressure sensor output / Min.: 0 V, Max.: 5 V When brake pedal released: 0.1 to 0.9 V Reading increases when brake pedal is depressed
      Stroke Sensor Brake pedal stroke sensor / Min.: 0 V, Max.: 5 V When 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 / 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: 3.65 to 4.35 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: 2.9 to 4.2 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
      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
      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.: 326.4 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.: 326.4 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.: 326.4 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.: 326.4 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 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 relay output / ON or OFF ON: Relay output on
      OFF: Relay output 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 -
      RR Wheel EBD Ctrl Status Rear wheel RH EBD control status / ON or OFF ON: During control -
      RL Wheel EBD Ctrl Status Rear wheel LH EBD 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 -
      TRC(TRAC) Ctrl Status TRAC control status / ON or OFF ON: During control -
      TRC(TRAC) Engine Ctrl Status TRAC engine control status / ON or OFF ON: During control -
      TRC(TRAC) Brake Ctrl Status TRAC 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 % The difference of a present accelerator / Min.: 0%, Max.: 127% When the accelerator pedal released: 0% During accelerator pedal operation: Changes in proportion with the pedal movement
      Regenerative Cooperation Regenerative cooperation / ON or OFF ON: Operate
      OFF: Not operate      		 -
      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.)
      ECB* Motor Relay ABS motor relay / ON or OFF ON: Relay on
      OFF: Relay off      		 -
      ECB* Main Relay ABS main relay / ON or OFF ON: Relay on
      OFF: Relay off      		 -
      ABS Solenoid (SFRH) Holding solenoid valve (FRH) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ABS Solenoid (SFRR) Reduction solenoid valve (FRR) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ABS Solenoid (SFLH) Holding solenoid valve (FLH) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ABS Solenoid (SFLR) Reduction solenoid valve (FLR) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ABS Solenoid (SRRH) Holding solenoid valve (RRH) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ABS Solenoid (SRRR) Reduction solenoid valve (RRR) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ABS Solenoid (SRLH) Holding solenoid valve (RLH) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ABS Solenoid (SRLR) Reduction solenoid valve (RLR) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ECB* Solenoid (SRC) Regulator cut solenoid valve (SRC) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ECB* Solenoid (SCC) Switching solenoid valve (SCC) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ECB* Solenoid (SMC) Master cut solenoid valve (SMC) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      ECB* Solenoid (SSC) Simulator cut solenoid valve (SSC) / ON or OFF ON: Operate
      OFF: Not operate      		 -
      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 Regulator pressure sensor open detection / Error or Normal Error: Momentary interruption
      Normal: Normal      		 -
      Stroke Open Brake pedal stroke sensor open detection / Error or Normal Error: Momentary interruption
      Normal: Normal      		 -
      FR Wheel Cylinder Open 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      		 -
      Number of DTC Number of DTC / Min.: 0, Max.: 255 - Number of DTC output is displayed
      Wheel Cylinder Pressure Sensor Wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.1 to 0.9 V Reading increases when brake pedal is depressed
      Regulator Pressure Sensor Output After Filter Regulator pressure sensor output after filter / Min.:-1 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 A, Max.: 3 A When brake pedal released: 0 A -
      SLR Solenoid Current Linear solenoid reduction valve (SLR) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SSC Solenoid Current Simulator cut solenoid valve (SSC) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SCC Solenoid Current Switching solenoid valve (SCC) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SMC Solenoid Current Master cut solenoid valve (SMC) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      SRC Solenoid Current Regulator cut solenoid valve (SRC) current / Min.: 0 A, Max.: 3 A When brake pedal released: 0 A -
      Hazard Switch History Hazard switch history / Incomplete or Complete Incomplete: Incomplete
      Complete: Complete      		 -
      DSS Signal Buzzer*1 Skid control buzzer / ON or OFF ON: Buzzer on
      OFF: Buzzer off      		 -

      *: Electronically Controlled Brake System

      *1: w/ Dynamic Radar Cruise Control System

  2. ACTIVE TEST 

    HINT: 

    Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts to operate 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 Techstream to the DLC3.
    4. Turn the power switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
    7. According to the display on the Techstream, perform the Active Test.
      ABS/VSC/TRAC

      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
      DAB Indicator Light DAB indicator light Indicator light ON/OFF No change
      ECB* Warning Light Brake warning light / yellow (minor malfunction) Warning light ON/OFF Observe combination meter
      Buzzer Meter 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* Motor Relay ABS motor relay Relay ON/OFF -
      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)
      Accumulator Zero Down Accumulator zero down activation 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 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
      Slip Indicator Light Slip indicator light Indicator light ON/OFF Observe combination meter
      EBS Relay Stop light control relay Relay ON/OFF No change
      ECB* Solenoid (SLR) Valve Close Linear solenoid reduction valve (SLR) Valve close ON/OFF -
      ECB* Solenoid (SLA) Valve Close Linear solenoid additional valve (SLA) Valve close ON/OFF -
      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* Solenoid (SMC) Master cut solenoid valve (SMC) Solenoid ON/OFF Operation sound of solenoid (clicking sound) can be heard
      ECB* Solenoid (SCC) Switching solenoid valve (SCC) Solenoid ON/OFF Operation sound of solenoid (clicking sound) can be heard
      ECB* Solenoid (SSC) Simulator cut solenoid valve (SSC) Solenoid ON/OFF Operation sound of solenoid (clicking sound) can be heard
      ECB* Solenoid (SMC/SRC/SCC) Switching solenoid valve (SMC/SRC/SCC) Solenoid ON/OFF Operation sound of solenoid (clicking sound) can be heard
      ABS Solenoid Solenoid valve (FRH, FRR, FLH, FLR, RRH, RRR, RLH, RLR) Solenoid SFRH/SFRR/SFLH/ SFLR/SRRH/SRRR/SRLH/SRLR Operation sound of solenoid (clicking sound) can be heard
      DSS Signal Buzzer*1 Skid control buzzer Buzzer ON/OFF Buzzer can be heard

      *: Electronically Controlled Brake System

      *1: w/ Dynamic Radar Cruise Control System

scientia non olet · About LEMON Manuals