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Home >> Toyota >> 2021 >> Camry LE, FWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Vehicle Stability Control System (W/ Electric Parking Brake System) - Diagnostics - Introduction (2 Of 2) (Except Hybrid) >> VEHICLE STABILITY CONTROL SYSTEM (w/ Electric Parking Brake System) >> Data List / Active Test [08/2021 - ] >> Data List / Active Test [08/2021 - ]

Data List / Active Test [08/2021 - ]

  1. DATA LIST 
    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.

    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.

    1. Warm up the engine.
    2. Turn the ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Chassis / Brake/EPB / Data List.
    7. 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 Ignition switch ON: 11.0 to 14.0 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 Ignition switch ON: 11.0 to 14.0 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 -
    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) /
    VSC expert mode (VSC expert mode MID ON) /
    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
    VSC expert mode (VSC expert mode MID ON): VSC expert mode
    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 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    		 -
    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 calibration 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 calibration*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
    1. *1: for entering inspection mode: Refer to CALIBRATION [08/2021 - ]
    2. *2: for performing Dealer Mode (Signal Check): Refer to TEST MODE PROCEDURE [08/2021 - ]
    3. *3: for entering Dealer Mode (Calibration): Refer to CALIBRATION [08/2021 - ]
  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. 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 ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Chassis / Brake/EPB / Active Test.
    7. Perform the Active Test to check for incorrect operation or to narrow down malfunctioning areas.
      NOTE:
      • 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
    • 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
    • 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
    1. *: Refer to ON-VEHICLE INSPECTION [10/2020 - ]
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