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Home >> Toyota >> 2019 >> RAV4 XLE, FWD >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake System (W/O Vacuum Brake Booster) - Diagnostics - Introduction >> ELECTRIC PARKING BRAKE SYSTEM (w/o Vacuum Brake Booster) >> Data List / Active Test [02/2019 - 12/2021] >> Data List / Active Test [02/2019 - 12/2021]

Data List / Active Test [02/2019 - 12/2021]

  1. READ 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. Turn the ignition switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Enter the following menus: Chassis / Electric Parking Brake / Data List.
    6. Check the values by referring to the table below.

    Chassis > Electric Parking Brake > Data List 

    Tester Display Measurement Item Range Normal Condition Diagnostic Note
    Number of Trouble Codes Number of DTCs recorded 0 to 255 0 -
    RH Motor +B Voltage Parking brake motor RH (parking brake actuator assembly RH) +B voltage display Lo, Mid, Error or Hi Hi -
    LH Motor +B Voltage Parking brake motor LH (parking brake actuator assembly LH) +B voltage display Lo, Mid, Error or Hi Hi -
    FR Speed Sensor Open Front speed sensor RH open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    FL Speed Sensor Open Front speed sensor LH open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    RR Speed Sensor Open Rear speed sensor RH open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    RL Speed Sensor Open Rear speed sensor LH open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    EFI ECU Communication Open ECM communication open detection Normal or Error Error
    • There is no communication with ECM. As a result, "Error" is displayed permanently.
    • This item is displayed but there is no problem.
    Deceleration Sensor Open Deceleration sensor (airbag ECU assembly) power supply voltage status Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    HV ECU Communication Open Hybrid vehicle control ECU assembly communication open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    Body ECU Communication Open Main body ECU (multiplex network body ECU) communication open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    Brake ECU Communication Open Skid control ECU (brake booster with master cylinder assembly) communication open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    A/C ECU Communication Open Air conditioning amplifier assembly communication open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    Navigation ECU Communication Open Radio receiver assembly communication open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    Stop and Start ECU Communication Open Engine stop and start ECU communication open detection Normal or Error Error
    • There is no communication with engine stop and start ECU. As a result, "Error" is displayed permanently.
    • This item is displayed but there is no problem.
    Deceleration Sensor Open (EPB) Deceleration sensor (airbag ECU assembly) communication open detection Normal or Error Normal: Normal
    Error: Momentary interruption    		 After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".
    FR Wheel Speed Front right wheel speed display 0.0 to 326.4 km/h (0.0 to 202.8 mph) When vehicle is stopped: 0.0 km/h (0.0 mph)
    When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)    		 When not normal, front speed sensor RH system and CAN communication may be malfunctioning
    FL Wheel Speed Front left wheel speed display 0.0 to 326.4 km/h (0.0 to 202.8 mph) When vehicle is stopped: 0.0 km/h (0.0 mph)
    When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)    		 When not normal, front speed sensor LH system and CAN communication may be malfunctioning
    RR Wheel Speed Rear right wheel speed display 0.0 to 326.4 km/h (0.0 to 202.8 mph) When vehicle is stopped: 0.0 km/h (0.0 mph)
    When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)    		 When not normal, rear speed sensor RH system and CAN communication may be malfunctioning
    RL Wheel Speed Rear left wheel speed display 0.0 to 326.4 km/h (0.0 to 202.8 mph) When vehicle is stopped: 0.0 km/h (0.0 mph)
    When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)    		 When not normal, rear speed sensor LH system and CAN communication may be malfunctioning
    Deceleration Sensor 1 Deceleration sensor (airbag ECU assembly) 1 input display -18.300 to 18.318 m/s2 When vehicle is stopped: 0.000 m/s2
    When driving vehicle: Continuously changes    		 When not normal, deceleration sensor (airbag ECU assembly) system and CAN communication may be malfunctioning
    Deceleration Sensor 2 Deceleration sensor (airbag ECU assembly) 2 input display -18.300 to 18.318 m/s2 When vehicle is stopped: 0.000 m/s2
    When driving vehicle: Continuously changes    		 When not normal, deceleration sensor (airbag ECU assembly) system and CAN communication may be malfunctioning
    Forward and Rearward G Deceleration sensor (airbag ECU assembly) input display -18.300 to 18.318 m/s2 When vehicle is stopped: 0.000 m/s2
    When driving vehicle: Changes according to increase or decrease in speed    		 When not normal, deceleration sensor (airbag ECU assembly) system and CAN communication may be malfunctioning
    Zero Point of Deceleration Sensor Deceleration sensor (airbag ECU assembly) zero point display -4.595 to 4.559 m/s2 - -
    Zero Point of Deceleration Sensor 2 Deceleration sensor (airbag ECU assembly) 2 zero point display -4.595 to 4.559 m/s2 - -
    Vehicle Speed Vehicle speed display 0.0 to 326.4 km/h (0.0 to 202.8 mph) When vehicle is stopped: 0.0 km/h (0.0 mph)
    When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)    		 When not normal, speed sensor system and CAN communication may be malfunctioning
    ECU +B1 Voltage Parking brake ECU assembly +B voltage display 0.00 to 20.00 V 11.00 to 14.00 V -
    ECU +B2 Voltage Parking brake ECU assembly +B2 voltage display 0.00 to 20.00 V 11.00 to 14.00 V -
    RH Actuator Motor +Terminal Voltage Parking brake motor RH (parking brake actuator assembly RH) positive (+) terminal side voltage display 0.00 to 20.00 V - -
    RH Actuator Motor -Terminal Voltage Parking brake motor RH (parking brake actuator assembly RH) negative (-) terminal side voltage display 0.00 to 20.00 V - -
    LH Actuator Motor +Terminal Voltage Parking brake motor LH (parking brake actuator assembly LH) positive (+) terminal side voltage display 0.00 to 20.00 V - -
    LH Actuator Motor -Terminal Voltage Parking brake motor LH (parking brake actuator assembly LH) negative (-) terminal side voltage display 0.00 to 20.00 V - -
    Indoor Temperature Interior temperature -6.50 to 57.25°C (20.3 to 135°F) - When displayed value differs from actual interior temperature, air conditioning system and CAN communication system may be malfunctioning
    Ambient Temperature Ambient temperature -40 to 50°C (-40 to 122°F) - When displayed value differs from actual ambient temperature, air conditioning system and CAN communication system may be malfunctioning
    Stop Light Switch Stop light switch assembly ON or OFF ON: Brake pedal depressed
    OFF: Brake pedal released    		 -
    EPB Switch Electric parking brake switch assembly input OFF, Lock, Release or Unknown OFF: Lock switch and release switch are off
    Lock: Lock switch on
    Release: Release switch on    		 When "Unknown" is displayed, electric parking brake switch assembly release side system may be malfunctioning
    HINT: 
    EPB stands for electric parking brake.
    Auto Mode Request Auto mode request status ON or OFF ON: Requested
    OFF: Not requested    		 -
    Shift Position Shift position information P, N, R, D or Unknown P: Shift position in P
    N: Shift position in N
    R: Shift position in R
    D: Shift position in D    		 When "Unknown" is displayed, shift position signal system may be malfunctioning
    IG Switch IG power source information display ON or OFF ON: IG power source is input into parking brake ECU assembly
    OFF: IG power source is not input into parking brake ECU assembly    		 -
    Lock Switch 1 Lock switch 1 input signal ON, OFF, Open or Short ON: Lock switch on
    OFF: Lock switch off    		 When "Open" or "Short" is displayed, electric parking brake switch assembly lock side system may be malfunctioning
    Lock Switch 2 Lock switch 2 input signal ON, OFF, Open or Short ON: Lock switch on
    OFF: Lock switch off    		 When "Open" or "Short" is displayed, electric parking brake switch assembly lock side system may be malfunctioning
    Release Switch 1 Release switch 1 input signal ON, OFF, Open or Short ON: Release switch on
    OFF: Release switch off    		 When "Open" or "Short" is displayed, electric parking brake switch assembly release side system may be malfunctioning
    Release Switch 2 Release switch 2 input signal ON, OFF, Open or Short ON: Release switch on
    OFF: Release switch off    		 When "Open" or "Short" is displayed, electric parking brake switch assembly release side system may be malfunctioning
    Brake Hold Ready Brake hold control permission status ON or OFF - -
    Brake Hold Control Mode Brake Hold Control Mode OFF, ON, Release or EPB OFF: Brake hold control is not operating
    ON: Brake hold control is operating Release: Brake hold control is released
    EPB: Parking brake is locked during brake hold control    		 HINT: 
    EPB stands for electric parking brake
    EPB Lock Request Lock demand status ON or OFF ON: Requested
    OFF: Not requested    		 HINT: 
    EPB stands for electric parking brake
    FR Speed Signal Status FR speed signal status Normal or Stuck Normal -
    FL Speed Signal Status FL speed signal status Normal or Stuck Normal -
    RR Speed Signal Status RR speed signal status Normal or Stuck Normal -
    RL Speed Signal Status RL speed signal status Normal or Stuck Normal -
    RH Actuator Current Status RH Actuator Current Status Valid or Inval Valid -
    LH Actuator Current Status LH Actuator Current Status Valid or Inval Valid -
    RH Actuator Nut Stroke Parking brake actuator assembly RH nut stroke value is displayed 0.000 to 8.160 mm (0.000 to 0.321 in.) - -
    LH Actuator Nut Stroke Parking brake actuator assembly LH nut stroke value is displayed 0.000 to 8.160 mm (0.000 to 0.321 in.) - -
    RH Actuator Motor Actual Current Parking brake motor RH (parking brake actuator assembly RH) current value is displayed -5.0362 to 50.5000 A - -
    RH Actuator Motor Adjustment Current Parking brake motor RH (parking brake actuator assembly RH) current calibration value is displayed -6.9690 to 6.9140 A - -
    RH Actuator 0 load Current Parking brake actuator assembly RH current value with no load is displayed -5.0362 to 50.5000 A - -
    LH Actuator Motor Actual Current Parking brake motor LH (parking brake actuator assembly LH) current value display -5.0362 to 50.5000 A - -
    LH Actuator Motor Adjustment Current Parking brake motor LH (parking brake actuator assembly LH) current calibration value display -6.9690 to 6.9140 A - -
    LH Actuator 0 load Current Parking brake actuator assembly LH current value with no load is displayed -5.0362 to 50.5000 A - -
    Counter of IG ON After EPB Control Cancel Number of ignition switch ON operations after EPB control cancellation 0 to 255 Times - HINT: 
    EPB stands for electric parking brake.
    RH Actuator Status Parking brake actuator assembly RH condition details are displayed Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control, Full Release Control - -
    LH Actuator Status Parking brake actuator assembly LH condition details are displayed Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control, Full Release Control - -
    RH Actuator Motor Current Differential RH Actuator Motor Current Differential is displayed -1.008 to 0.945 A - -
    LH Actuator Motor Current Differential LH Actuator Motor Current Differential is displayed -1.008 to 0.945 A - -
    Auto Mode AUTO (shift-linked) mode permission status ON or OFF ON: AUTO (shift-linked) mode
    OFF: Manual mode    		 -
    Dynamic PKB Mode Dynamic parking brake operation status ON or OFF ON: Dynamic parking brake is operating
    OFF: Dynamic parking brake is not operating    		 -
    Permission of Interlocking Shift Permission of Interlocking Shift is displayed OK or NG OK -
    Permission of Interlocking Brake Permission of Interlocking Brake is displayed OK or NG OK -
    Permission of RH Interlocking PKB Lock Permission of RH Interlocking PKB Lock is displayed OK or NG OK -
    Permission of RH Interlocking PKB Release Permission of RH Interlocking PKB Release is displayed OK or NG OK -
    Permission of RH Interlocking Dynamic PKB Permission of RH Interlocking Dynamic PKB is displayed OK or NG OK -
    Permission of RH Interlocking PKB Full Release Permission of RH Interlocking PKB Full Release is displayed OK or NG NG -
    Permission of LH Interlocking PKB Lock Permission of LH Interlocking PKB Lock is displayed OK or NG OK -
    Permission of LH Interlocking PKB Release Permission of LH Interlocking PKB Release is displayed OK or NG OK -
    Permission of LH Interlocking Dynamic PKB Permission of LH Interlocking Dynamic PKB is displayed OK or NG OK -
    Permission of LH Interlocking PKB Full Release Permission of LH Interlocking PKB Full Release is displayed OK or NG NG -
    Fade Status Fade status display ON or OFF - -
    EPB Control Cancel History EPB control cancel history display No Recoded, RH IC Overheat, LH IC Overheat, RH Actuator Motor Current High, LH Actuator Motor Current High, RH Actuator Motor +B Open Judging, LH Actuator Motor +B Open Judging, IG Voltage High/Low - HINT: 
    EPB stands for electric parking brake.
    Parking Brake Light Parking brake indicator light output information display OFF, Light or Blink OFF: Parking brake indicator light turns off
    Light: Parking brake indicator light illuminates
    Blink: Parking brake indicator light flashes    		 -
    EPB Warning Light Brake system warning light (yellow indicator) output information display ON or OFF ON: Brake system warning light (yellow indicator) illuminates
    OFF: Brake system warning light (yellow indicator) turns off    		 HINT: 
    EPB stands for electric parking brake.
    AUTO Indicator AUTO indicator light output signal ON or OFF OFF This item is displayed on the Techstream but is not used
    Meter ECU Connection Cancel Request Completes communication with the combination meter assembly and stops transmission ON or OFF ON: Complete
    OFF: Not complete    		 -
  2. PERFORM 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. Turn the ignition switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Enter the following menus: Chassis / Electric Parking Brake / Active Test.
    6. Perform the Active Test by referring to the table below.

    Chassis > Electric Parking Brake > Active Test 

    Tester Display Measurement Item Control Range Restrict Condition Diagnostic Note
    Auto Mode AUTO (shift-linked) mode ON or OFF
    • Vehicle stopped
    • Ignition switch ON
    		 -
    EPB Warning Light Brake system warning light (yellow indicator) ON or OFF
    • Vehicle stopped
    • Ignition switch ON
    		 HINT: 
    EPB stands for electric parking brake.
    PKB Light Parking brake indicator light ON or OFF
    • Vehicle stopped
    • Ignition switch ON
    		 -
    PKB Lock Control Parking brake lock control ON or OFF
    • Vehicle stopped
    • Ignition switch ON
    		 -
    PKB Release Control Parking brake release control ON or OFF
    • Vehicle stopped
    • Ignition switch ON
    		 -
    PKB Full Release Control Parking full brake release control ON or OFF
    • Vehicle stopped
    • Ignition switch ON
    		 -
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