Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001HD5Q
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2022]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): DATA LIST / ACTIVE TEST; 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]

DATA LIST / ACTIVE TEST

DATA LIST

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.

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.

(a) Warm up the engine.

(b) Turn the ignition switch off.

(c) Connect the Techstream to the DLC3.

(d) Turn the ignition switch to ON.

(e) Turn the Techstream on.

(f) Enter the following menus: Chassis / Brake / Data List.

(g) According to the display on the Techstream, read the Data List.

Chassis > Brake > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled - Unit

Total Distance Traveled unit

km / mile

-

-

Total Distance Traveled

Total distance traveled

Min.: 0, Max.: 16777215

-

-

IG1 Voltage Value

IG1 terminal voltage value (value detected by ECU)

Min.: 0.0 V, Max.: 25.5 V

Ignition switch ON: 11.0 to 14.0 V

Changes in proportion to battery voltage

BS1 Voltage Value

+BS terminal voltage value (value detected by ECU)

Min.: 0.0 V, Max.: 25.5 V

Ignition switch ON: 11.0 to 14.0 V

Changes in proportion to battery voltage

HINT:

This is the voltage detected at terminal +BS (which supplies power to each solenoid) of the skid control ECU (brake actuator assembly)

Motor Power Supply Voltage

+BM terminal voltage value (value detected by ECU)

Min.: 0.0 V, Max.: 25.5 V

Ignition switch ON: 11.0 to 14.0 V

Changes in proportion to battery voltage

HINT:

This is the voltage detected at terminal +BM (which supplies power to the ABS motor) of the skid control ECU (brake actuator assembly)

FR Wheel Speed

Front wheel speed sensor RH reading

Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

FL Wheel Speed

Front wheel speed sensor LH reading

Min.: 0.0 km/h (0.0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

RR Wheel Speed

Rear wheel speed sensor RH reading

Min.: 0.0 km/h (0.0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

RL Wheel Speed

Rear wheel speed sensor LH reading

Min.: 0.0 km/h (0.0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

FR Wheel Acceleration

Front wheel RH acceleration

Min.: -200.840 m/s2, Max.: 199.271 m/s2

Vehicle stopped: 0.000 m/s2

During deceleration: -200.840 to 0.000 m/s2

During acceleration: 0.000 to 199.271 m/s2

During deceleration/acceleration: Changes continuously

FL Wheel Acceleration

Front wheel LH acceleration

Min.: -200.840 m/s2, Max.: 199.271 m/s2

Vehicle stopped: 0.000 m/s2

During deceleration: -200.840 to 0.000 m/s2

During acceleration: 0.000 to 199.271 m/s2

During deceleration/acceleration: Changes continuously

RR Wheel Acceleration

Rear wheel RH acceleration

Min.: -200.840 m/s2, Max.: 199.271 m/s2

Vehicle stopped: 0.000 m/s2

During deceleration: -200.840 to 0.000 m/s2

During acceleration: 0.000 to 199.271 m/s2

During deceleration/acceleration: Changes continuously

RL Wheel Acceleration

Rear wheel LH acceleration

Min.: -200.840 m/s2, Max.: 199.271 m/s2

Vehicle stopped: 0.000 m/s2

During deceleration: -200.840 to 0.000 m/s2

During acceleration: 0.000 to 199.271 m/s2

During deceleration/acceleration: Changes continuously

Master Cylinder Sensor 1

Master cylinder pressure sensor pressure (value detected by ECU)

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

Brake pedal released: -1.00 to 0.00 MPa

Reading increases when brake pedal is depressed

Zero Point of M/C

Memorized zero point value of master cylinder pressure sensor

Min.: -12.5 MPa, Max.: 12.4 MPa

-

-

M/C Sensor Grade

Master cylinder pressure sensor change (value detected by ECU)

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

Brake pedal released or pedal held at constant position: 0 MPa/s

When brake pedal is being operated: Changes in proportion with the pedal movement speed

Lateral G

Lateral G

Min.: -25.105 m/s2, Max.: 24.908 m/s2

Turning right: -25.105 to 0.000 m/s2

Turning left: 0.000 to 24.908 m/s2

During turning: Changes in proportion with lateral acceleration

Forward and Rearward G

Forward and rearward G

Min.: -25.105 m/s2, Max.: 24.908 m/s2

During deceleration: -25.105 to 0.000 m/s2

During acceleration: 0.000 to 24.908 m/s2

During acceleration/deceleration: Changes in proportion with acceleration

Zero Point of Decele2

Memorized zero point value of lateral G

Min.: -25.105 m/s2, Max.: 24.908 m/s2

-

-

Zero Point of Decele

Memorized zero point value of forward and rearward G

Min.: -25.105 m/s2, Max.: 24.908 m/s2

-

-

Yaw Rate Sensor Value

Yaw rate sensor

Min.: -128°/s, Max.: 127°/s

Vehicle stopped: 0°/s

Turning right: -128 to 0°/s

Turning left: 0 to 127°/s

-

Zero Point of Yaw Rate Sensor

Memorized zero point value of yaw rate sensor

Min.: -128°, Max.: 127°

-

-

Steering Angle Value

Steering angle sensor

Min.: -3276.8°, Max.: 3276.7°

Turning left: 0.0 to 3276.7°

Turning right: -3276.8 to 0.0°

-

Zero Point of Steering Angle

Memorized zero point value of steering angle sensor

Min.: -3276.8°, Max.: 3276.7°

-

-

MT Voltage Value

ABS motor drive voltage value

Min.: 0.0 V, Max.: 25.5 V

-

Changes in proportion to battery voltage

HINT:

This is the voltage output (which supplies power to the ABS motor) from the skid control ECU (brake actuator assembly) to the ABS motor relay

Solenoid Power Supply Voltage

Solenoid power supply voltage value

Min.: 0.0 V, Max.: 25.5 V

-

Changes in proportion to battery voltage

HINT:

This is the voltage output (which supplies power to each solenoid) from the skid control ECU (brake actuator assembly) to the ABS solenoid relay

Vehicle Speed

Vehicle speed

Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

Engine Revolutions

Engine speed

Min.: 0 rpm, Max.: 65535 rpm

Engine stopped: 0 rpm

When engine speed is constant: No large fluctuations

Accelerator Opening Angle %

Percentage of accelerator pedal opening angle

Min.: 0.0%, Max.: 127.5%

Accelerator pedal released: 0.0%

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

Real Engine Torque

Real engine torque

Min.: -1024.000 Nm, Max.: 1023.000 Nm

-

-

Shift Lever Position

Shift lever position information

fail / 1st / 2nd / 3rd / 4th / 5th / 6th / B / D/M / N / P / R / No input

Actual shift lever position

for continuously variable transaxle

TRC(TRAC)/VSC OFF Mode

TRAC/VSC off mode

Normal mode (TRC(TRAC) ON/VSC ON) /

TRC(TRAC) OFF mode (TRC(TRAC) OFF/VSC ON) /

Not defined /

VSC OFF mode (TRC(TRAC) OFF/VSC OFF)

Normal mode (TRC(TRAC) ON/VSC ON): Normal mode

TRC(TRAC) OFF mode (TRC(TRAC) OFF/VSC ON): TRAC off mode

Not defined: Not defined

VSC OFF mode (TRC(TRAC) OFF/VSC OFF): VSC off mode

-

Brake Hold Control Mode

Brake hold control mode

Out of control mode /

Pressure hold mode /

Pressure release mode /

EPB lock mode

Out of control mode: Brake hold control system is off or brake hold control system is stand-by mode (brake hold standby indicator light is illuminated)

Pressure hold mode: Brake hold control is operating (brake hold operated indicator light is illuminated)

Pressure release mode: Brake hold control is released (brake hold standby indicator light not illuminated)

EPB lock mode: Parking brake is engaged during brake hold control

HINT:

  • EPB stands for electric parking brake
  • If the brake pedal is not depressed for 3 minutes of more after entering pressure hold mode, the system automatically changes to EPB lock mode

FR Target Oil Pressure

The value of the target oil pressure applied to the front brake RH

Min.: 0.0 MPa, Max.: 20.0 MPa

-

Operating the brake pedal: Varies depending on the target oil pressure

FL Target Oil Pressure

The value of the target oil pressure applied to the front brake LH

Min.: 0.0 MPa, Max.: 20.0 MPa

-

Operating the brake pedal: Varies depending on the target oil pressure

RR Target Oil Pressure

The value of the target oil pressure applied to the rear brake RH

Min.: 0.0 MPa, Max.: 20.0 MPa

-

Operating the brake pedal: Varies depending on the target oil pressure

RL Target Oil Pressure

The value of the target oil pressure applied to the rear brake LH

Min.: 0.0 MPa, Max.: 20.0 MPa

-

Operating the brake pedal: Varies depending on the target oil pressure

Vehicle Speed

Vehicle speed (vehicle speed used for each control)

Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

Vehicle Speed Grade

Vehicle speed grade

Min.: -25.105 m/s2, Max.: 24.908 m/s2

Vehicle stopped: 0.000 m/s2

During deceleration: -25.105 to 0.000 m/s2

During acceleration: 0.000 to 24.908 m/s2

During deceleration/acceleration: Changes continuously

Vehicle Stop Time from IG ON

Time vehicle stopped after ignition switch turned to ON

Min.: 0 s, Max.: 1275 s

-

-

Travel Distance from IG ON

Driving time after ignition switch turned to ON

Min.: 0 s, Max.: 1275 s

-

-

IG Switch

Ignition switch ON status

OFF / ON

-

-

Stop Light SW

Stop light switch assembly (STP terminal input)

OFF / ON

OFF: Brake pedal released

ON: Brake pedal depressed

HINT:

The brake pedal state is determined using the voltage at terminal STP

Parking Brake SW

Parking brake switch assembly

OFF / ON

OFF: Parking brake released

ON: Parking brake applied

-

Reverse Position Switch

Back-up light switch assembly

OFF / ON

OFF: Shift lever in any position other than R

ON: Shift lever in R

for Manual Transaxle

Brake Hold Switch

Brake hold switch (electric parking brake switch assembly) (HZRI terminal input)

OFF / ON

OFF: Brake hold switch (electric parking brake switch assembly) OFF

ON: Brake hold switch (electric parking brake switch assembly) ON

HINT:

The brake hold switch (electric parking brake switch assembly) state is determined using the voltage at terminal HZRI

Stop Light Relay

Stop light control relay (stop light switch assembly)

(STP2 terminal input)

OFF / ON

OFF: Stop light control relay (Stop light switch assembly) OFF

ON: Stop light control relay (Stop light switch assembly) ON

HINT:

The stop light state is determined using the voltage at terminal STP2

Inspection Mode

Inspection mode

OFF / ON

OFF: Normal mode

ON: Inspection mode

HINT:

Refer to utility for details on how to enter inspection mode*1

TRC(TRAC) Control

TRAC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

TRC(TRAC) Engine Control

TRAC engine control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

TRC(TRAC) Brake Control

TRAC brake control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FR Wheel VSC Ctrl Status

Front wheel RH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FL Wheel VSC Ctrl Status

Front wheel LH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RR Wheel VSC Ctrl Status

Rear wheel RH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RL Wheel VSC Ctrl Status

Rear wheel LH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FR Wheel ABS Ctrl Status

Front wheel RH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FL Wheel ABS Ctrl Status

Front wheel LH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RR Wheel ABS Ctrl Status

Rear wheel RH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RL Wheel ABS Ctrl Status

Rear wheel LH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

BA Ctrl Status

BA control status

OFF / ON

OFF: During not control

ON: During control

-

PBA Ctrl Status

PBA control status

OFF / ON

OFF: During not control

ON: During control

-

Stop Light Relay State for ECU Control

Stop light control relay (stop light switch assembly) status (STPO terminal output) (for ECU control)

OFF / ON

OFF: Stop light control relay (Stop light switch assembly) off (Stop light off)

ON: Stop light control relay (Stop light switch assembly) on (Stop light on)

-

Solenoid State for ECU Control

ABS solenoid relay status (for ECU control)

OFF / ON

OFF: ABS solenoid relay not operating

ON: ABS solenoid relay operating

-

Motor State for ECU Control

ABS motor relay status (for ECU control)

OFF / ON

OFF: ABS motor relay not operating

ON: ABS motor relay operating

-

Operation History of IG OFF while Vehicle is moving

History of ignition switch turned off when vehicle is in motion

OFF / ON

OFF: No history

ON: History of ignition switch turned off with vehicle speed 3 km/h (2 mph) or higher

-

Dealer Mode

Dealer Mode (Signal Check mode or Calibration mode) status

OFF / ON

OFF: Normal mode

ON: Dealer Mode (Signal Check mode or Calibration mode)

HINT:

  • for details on Dealer Mode (Signal Check), refer to test mode procedure*2
  • for details on Dealer Mode (Calibration), refer to utility*3

Zero Point Memory State of Steering Angle Sensor

Steering angle sensor zero point memorization status

Zero point is not memorized / Zero point is memorized

-

HINT:

The steering angle sensor zero point is acquired when the vehicle is being driven in a straight line at a speed of 15 km/h (9 mph) or more for approximately 1 second

Brake Hold Ready

Brake hold control permission status

Not in stand-by mode / Stand-by mode

Not in stand-by mode: Brake hold function not operating (brake hold indicator not illuminated)

Stand-by mode: Brake hold function stand-by state (brake hold indicator illuminated)

-

ABS Solenoid (SRLR)

Rear pressure reduction solenoid LH status

OFF / ON

OFF: Not Operating

ON: Operating (pressure reduction)

HINT:

The solenoid valve controls the brake fluid pressure of the wheel cylinder of the vehicle

ABS Solenoid (SRLH)

Rear pressure holding solenoid LH status

OFF / ON

OFF: Not Operating

ON: Operating (pressure holding)

HINT:

The solenoid valve controls the brake fluid pressure of the wheel cylinder of the vehicle

ABS Solenoid (SRRR)

Rear pressure reduction solenoid RH status

OFF / ON

OFF: Not Operating

ON: Operating (pressure reduction)

HINT:

The solenoid valve controls the brake fluid pressure of the wheel cylinder of the vehicle

ABS Solenoid (SRRH)

Rear pressure holding solenoid RH status

OFF / ON

OFF: Not Operating

ON: Operating (pressure holding)

HINT:

The solenoid valve controls the brake fluid pressure of the wheel cylinder of the vehicle

ABS Solenoid (SFLR)

Front pressure reduction solenoid LH status

OFF / ON

OFF: Not Operating

ON: Operating (pressure reduction)

HINT:

The solenoid valve controls the brake fluid pressure of the wheel cylinder of the vehicle

ABS Solenoid (SFLH)

Front pressure holding solenoid LH status

OFF / ON

OFF: Not Operating

ON: Operating (pressure holding)

HINT:

The solenoid valve controls the brake fluid pressure of the wheel cylinder of the vehicle

ABS Solenoid (SFRR)

Front pressure reduction solenoid RH status

OFF / ON

OFF: Not Operating

ON: Operating (pressure reduction)

HINT:

The solenoid valve controls the brake fluid pressure of the wheel cylinder of the vehicle

ABS Solenoid (SFRH)

Front pressure holding solenoid RH status

OFF / ON

OFF: Not Operating

ON: Operating (pressure holding)

HINT:

The solenoid valve controls the brake fluid pressure of the wheel cylinder of the vehicle

TRC(TRAC)/VSC Solenoid (SM2)

Master cylinder cut solenoid (Brake Pressure Control Solenoid "B") status

OFF / ON

OFF: Not Operating

ON: Operating (pressure regulation)

HINT:

Depending on the operating conditions, the master cylinder cut solenoid valves regulate the brake fluid pressure generated by the pump motor

TRC(TRAC)/VSC Solenoid (SM1)

Master cylinder cut solenoid (Brake Pressure Control Solenoid "A") status

OFF / ON

OFF: Not Operating

ON: Operating (pressure regulation)

HINT:

Depending on the operating conditions, the master cylinder cut solenoid valves regulate the brake fluid pressure generated by the pump motor

TRC(TRAC)/VSC Solenoid (SRC2)

Reservoir cut solenoid (Brake Pressure Control Solenoid "D") status

OFF / ON

OFF: Not Operating

ON: Operating (brake fluid supplied to pump motor)

HINT:

When the brakes are operating, the reservoir cut solenoid valves supply brake fluid from the brake master cylinder reservoir assembly to the pump motor as necessary

TRC(TRAC)/VSC Solenoid (SRC1)

Reservoir cut solenoid (Brake Pressure Control Solenoid "C") status

OFF / ON

OFF: Not Operating

ON: Operating (brake fluid supplied to pump motor)

HINT:

When the brakes are operating, the reservoir cut solenoid valves supply brake fluid from the brake master cylinder reservoir assembly to the pump motor as necessary

ABS Motor Relay

ABS motor relay

OFF / ON

OFF: ABS motor not operating

ON: ABS motor operating

-

STPO

Stop light control relay (Stop light switch assembly) status (STPO terminal output)

OFF / ON

OFF: Stop light control relay (Stop light switch assembly) off (Stop light off)

ON: Stop light control relay (Stop light switch assembly) on (Stop light on)

HINT:

When STPO is ON, the stop light control relay (stop light switch assembly) turns ON and the stop lights illuminate

EXO

EXO terminal output

OFF / ON

OFF: Always

This item is displayed on the GTS but is not used
  • *1: for entering inspection mode: Click here 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): UTILITY
  • *2: for performing Dealer Mode (Signal Check): Click here 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): TEST MODE PROCEDURE
  • *3: for entering Dealer Mode (Calibration): Click here 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): UTILITY

CHECK FOR INTERMITTENT PROBLEMS

HINT:

A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ECUs can be detected using the Data List function of the Techstream.

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / Brake / Data List.

(f) Check the data related to power supply fluctuations.

HINT:

A momentary interruption (open circuit) cannot be detected for 3 seconds after the ignition switch is turned to ON (initial check).

Chassis > Brake > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

EFI Communication Open

EFI communication open detection

Normal / Under intermittent

Normal: Normal

Under intermittent: Momentary interruption

Related DTC: U010087

Yaw Rate Open

Yaw rate sensor (airbag sensor assembly) open detection

Normal / Under intermittent

Normal: Normal

Under intermittent: Momentary interruption

Related DTC: U012587

Deceleration Open

Acceleration sensor (airbag sensor assembly) open detection

Normal / Under intermittent

Normal: Normal

Under intermittent: Momentary interruption

Related DTC: U012587

Steering Open

Steering angle sensor open detection

Normal / Under intermittent

Normal: Normal

Under intermittent: Momentary interruption

Related DTC: U012687

(g) Push the line graph button to display the line graph.

(h) Check for intermittent shorts, etc.

OK:

Normal is displayed.

HINT:

If "Under intermittent" remains displayed on the Techstream, measure the resistance between the skid control ECU (brake actuator assembly) and the each sensor or ECM.

(i) While observing the screen, gently jiggle the connector or wire harness between the ECU and each sensors, or between ECUs.

OK:

Normal is displayed.

HINT:

  • If a momentary interruption occurs and Under intermittent is displayed on the Techstream, Under intermittent will remain displayed on the Techstream for 1 second after the circuit returns to normal.
  • If the display changes, this indicates that there has been a momentary interruption (open circuit) in the connector and/or wire harness. In this case, repair or replace the connectors and/or wire harnesses as one of them is faulty.

ACTIVE TEST

HINT:

Using the Techstream 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.

(a) Warm up the engine.

(b) Turn the ignition switch off.

(c) Connect the Techstream to the DLC3.

(d) Turn the ignition switch to ON.

(e) Turn the Techstream on.

(f) Enter the following menus: Chassis / Brake / Active Test.

(g) Perform the Active Test to check for incorrect operation or to narrow down malfunctioning areas.

NOTICE:

  • Although the Active Test automatically turns off the pump motor after approximately 5 seconds in order to protect the motor, do not operate the pump motor repeatedly without sufficient waiting time in between.
  • Although the Active Test automatically turns off each solenoid after approximately 2 seconds in order to protect the solenoid, do not operate the solenoids repeatedly without sufficient waiting time in between.
  • Do not depress the brake pedal when only the pressure release solenoids valves are ON.
  • Do not operate more than one solenoid at the same time, except for when operating the pressure hold solenoid and pressure release solenoid of the same wheel.

Chassis > Brake > Active Test

Tester Display

Measurement Item

Control Range

Restrict Condition

Diagnostic Note

EBS Relay

Emergency brake signal operation

Relay OFF / ON

Vehicle condition: Vehicle stopped

HINT:

To protect this Actuator and Solenoid, this test will only last 5 seconds.

Not applicable to this vehicle

ABS Solenoid

Pressure holding solenoid (SFRH, SFLH, SRRH, SRLH)

Pressure reduction solenoid (SFRR, SFLR, SRRR, SRLR)

Solenoid Start (Activate)

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

Vehicle condition:

  • Vehicle stopped
  • Shift lever is in P (for continuously variable transaxle)
  • Shift lever is in neutral (for manual transaxle)
  • Apply the parking brake

HINT:

To protect actuator and Solenoid(s), this test will continue for 25 seconds.

Refer to on-vehicle inspection for the brake actuator*

VSC Solenoid

Master cylinder cut solenoid (SMF (SM1), SMR (SM2))

Reservoir cut solenoid ((SRCF (SRC1), SRCR (SRC2))

Solenoid Start (Activate)

Solenoid SMF / SMR / SRCF / SRCR

Vehicle condition:

  • Vehicle stopped
  • Shift lever is in P (for continuously variable transaxle)
  • Shift lever is in neutral (for manual transaxle)
  • Apply the parking brake

HINT:

To protect actuator and Solenoid(s), this test will continue for 25 seconds.

Check that the Techstream display for the solenoid (SM1, SM2, SRC1 or SRC2) changes to ON/OFF during Solenoid Start (Activate)

Motor Relay

ABS motor relay

Relay OFF / ON

Vehicle condition: Vehicle stopped

HINT:

To protect this Actuator and Solenoid, this test will only last 5 seconds.

Refer to on-vehicle inspection for the brake actuator*

Stop Lamp Relay

Stop light control relay (Stop light switch assembly)

Relay OFF / ON

Vehicle condition: Vehicle stopped

HINT:

To protect this Actuator and Solenoid, this test will only last 5 seconds.

With the brake pedal released, check that the stop lights illuminate and the value of Stop Light Relay on the Techstream changes to ON when Stop Lamp Relay is ON

EXO

EXO terminal output

OFF / ON

-

This item is displayed on the GTS but is not used
  • *: Click here 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): ON-VEHICLE INSPECTION