ELECTRIC PARKING BRAKE SYSTEM DATA LIST / ACTIVE TEST


  1. READ 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. Turn the engine switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the tester ON.

    5. Enter the following menus:

      Select: Chassis / Electric Parking Brake / Data List /

    6. Check the values by referring to the table below.

      Electric Parking Brake
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Tension1 Voltage

      Tension sensor 1 voltage display/

      min.: 0 V

      max.: 5 V

      		 0.5 to 4.5 V Tension sensor related
      Tension2 Voltage

      Tension sensor 2 voltage display/

      min.: 0 V

      max.: 5 V

      		 0.5 to 4.5 V Tension sensor related
      Target Tension

      Target tension display/

      min.: 0 N

      max.: 3571 N

      		 -

      • Lock switch ON, below 385N: Left side cable may be broken

      • Lock control is operating, 659N or more; or lock condition, 895N or more: Right side cable may be broken
      Zero Point of Tension1

      Tension sensor1 zero point calibration voltage display/

      min.: 0 V

      max.: 5 V

      0.5 to 1.65 V

      (after calibrating zero point)

      		 Tension sensor related
      Zero Point of Tension2

      Tension sensor2 zero point calibration voltage display/

      min.: 0 V

      max.: 5 V

      0.5 to 1.65 V

      (after calibrating zero point)

      		 Tension sensor related
      Motor Current Value

      Motor current actual value display/

      min.: -4.8877 A

      max.: 49.18 A

      		 -1.63 to 1.63 A Motor related
      Zero Point of Motor Current

      Motor current zero point calibration display/

      min.: -6.7056 A

      max.: 6.7056 A

      		 -1.63 to 1.63 A Motor related
      Motor Voltage Monitor

      Motor voltage display/

      min.: 0 V

      max.: 5 V

      		 - Electric parking brake ECU related
      Lock Switch 1 Status

      Lock switch 1 input information display/

      ON / OFF / OPEN / SHORT / UNKNOWN

      ON: Lock switch ON

      OFF: Lock switch OFF

      OPEN: Lock switch open

      SHORT: Lock switch shorted

      UNKNOWN: Lock switch condition unknown

      		 Electric parking brake switch related (lock side)
      Lock Switch 2 Status

      Lock switch 2 input information display/

      ON / OFF / OPEN / SHORT

      ON: Lock switch ON

      OFF: Lock switch OFF

      OPEN: Lock switch open

      SHORT: Lock switch shorted

      		 Electric parking brake switch related (lock side)
      Release Switch 1 Status

      Release switch 1 input information display/

      ON / OFF / OPEN / SHORT

      ON: Release switch ON

      OFF: Release switch OFF

      OPEN: Release switch open

      SHORT: Release switch shorted

      		 Electric parking brake switch related (release side)
      Release Switch 2 Status

      Release switch 2 input information display/

      ON / OFF / OPEN / SHORT

      ON: Release switch ON

      OFF: Release switch OFF

      OPEN: Release switch open

      SHORT: Release switch shorted

      		 Electric parking brake switch related (release side)
      Auto Switch

      AUTO switch input information display/

      ON or OFF

      ON: AUTO switch is pressed and held

      OFF: AUTO switch is not pressed

      		 Electric parking brake switch related (AUTO switch)
      Stop Light Switch

      Stop light switch input information display/

      ON or OFF

      ON: Stop light switch ON

      OFF: Stop light switch OFF

      		 Stop light switch related
      FR Wheel Speed

      Front right wheel speed display/

      min.: 0 km/h (0 mph)

      max.: 326.4 km/h (204 mph)

      When vehicle is stopped: 0 km/h (0 mph)

      When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

      		 Front speed sensor RH related
      FL Wheel Speed

      Front left wheel speed display/

      min.: 0 km/h (0 mph)

      max.: 326.4 km/h (204 mph)

      When vehicle is stopped: 0 km/h (0 mph)

      When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

      		 Front speed sensor LH related
      RR Wheel Speed

      Rear right wheel speed display/

      min.: 0 km/h (0 mph)

      max.: 326.4 km/h (204 mph)

      When vehicle is stopped: 0 km/h (0 mph)

      When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

      		 Rear speed sensor RH related
      RL Wheel Speed

      Rear left wheel speed display/

      min.: 0 km/h (0 mph)

      max.: 326.4 km/h (204 mph)

      When vehicle is stopped: 0 km/h (0 mph)

      When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

      		 Rear speed sensor LH related
      Vehicle Speed

      Vehicle speed display/

      min.: 0 km/h (0 mph)

      max.: 326.4 km/h (204 mph)

      When vehicle is stopped: 0 km/h (0 mph)

      When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

      		 Speed sensor related
      Deceleration Sensor 1

      Yaw rate and acceleration sensor 1 input display/

      min.: -18.3 m/s2

      max. : 18.3 m/s2

      When vehicle is stopped: 0.000 m/s2

      When driving vehicle: continuously changes

      • Yaw rate and acceleration sensor related

      • CAN communication system
      Deceleration Sensor 2

      Yaw rate and acceleration sensor 2 input display/

      min.: -18.3 m/s2

      max. : 18.3 m/s2

      When vehicle is stopped: 0.000 m/s2

      When driving vehicle: continuously changes

      • Yaw rate and acceleration sensor related

      • CAN communication system
      Forward and Rearward G

      Yaw rate and acceleration sensor input display/

      min.: -18.3 m/s2

      max. : 18.3 m/s2

      When vehicle is stopped: 0.000 m/s2

      When driving vehicle: continuously changes

      • Yaw rate and acceleration sensor related

      • CAN communication system
      Zero Point of Deceleration Sensor

      Yaw rate and acceleration sensor (GL1) zero point calibration display/

      min.: -4.5952 m/s2

      max. : 4.5952 m/s2

      0 m/s2

      		Yaw rate and acceleration sensor related
      Zero Point of Deceleration Sensor 2

      Yaw rate and acceleration sensor (GL2) zero point calibration display/

      min.: -4.5952 m/s2

      max. : 4.5952 m/s2

      0 m/s2

      		Yaw rate and acceleration sensor related
      P Position

      Shift lever position input information display/

      ON or OFF

      ON: Shift lever is on P

      OFF: Shift lever is not on P

      • Park/Neutral position switch

      • CAN communication system
      N Position

      Shift lever position input information display/

      ON or OFF

      ON: Shift lever on N

      OFF: Shift lever not on N

      • Park/Neutral position switch

      • CAN communication system
      R Position

      Shift lever position input information display/

      ON or OFF

      ON: Shift lever on R

      OFF: Shift lever not on R

      • Park/Neutral position switch

      • CAN communication system
      D Position

      Shift lever position input information display/

      ON or OFF

      ON: Shift lever on D

      OFF: Shift lever not on D

      • Park/Neutral position switch

      • CAN communication system
      Temperature Invalid Flag

      Temperature data invalid information display/

      ENABLE or DISABLE

      		 -

      • Air conditioning system related

      • CAN communication system
      Indoor Temperature

      Indoor temperature information display/

      min.: -6.5°C (20.3°F)

      max.: 57.25°C (135.1°F)

      		 -

      • Air conditioning system related

      • CAN communication system
      Ambient Temperature

      Ambient temperature information display/

      min.: -40°C (-40°F)

      max.: 50°C (122°F)

      		 -

      • Air conditioning system related

      • CAN communication system
      Brake Hold Ready

      Brake hold control permission display/

      ON or OFF

      		 -

      • Brake hold related

      • CAN communication system
      Brake Hold Control Mode

      Brake hold control mode display/

      OFF / HOLD / RELEASE / EPB*

      		 -

      • Brake hold related

      • CAN communication system

      EPB Lock Demand

      (*)

      Lock demand information display/

      ON or OFF

      ON: Parking brake locks

      OFF: Parking brake releases

      • Brake hold related

      • CAN communication system
      IG Status

      Engine switch information display/

      ON or OFF

      ON: Engine switch is on (IG)

      OFF: Engine switch is on (ACC) or off

      		 IG circuit
      IG Switch

      IG power source information display/

      ON or OFF

      ON: IG power source is input into electric parking brake ECU

      OFF: IG power source is not input into electric parking brake ECU

      		 IG circuit
      +B Voltage Value

      +B power source information display/

      Lo / Mid / Hi

      		 - +B input circuit
      Tension Sensor Voltage

      Tension sensor power source voltage display/

      min.: 0 V

      max.: 6.65 V

      		 5.0 V Power source circuit
      Lock1 Control Status

      Routine lock output information display/

      ON or OFF

      		 - Electric parking brake ECU related
      Lock2 Control Status

      Dynamic parking brake output information display/

      ON or OFF

      		 - Electric parking brake ECU related
      Lock3 Control Status

      Re-lock output information display/

      ON or OFF

      		 - Electric parking brake ECU related
      Lock4 Control Status

      Release position lock output information display/

      ON or OFF

      		 - Electric parking brake ECU related
      Lock5 Control Status

      Maximum lock output information display/

      ON or OFF

      		 - Electric parking brake ECU related
      Lock6 Control Status

      Forced re-lock output information display/

      ON or OFF

      		 - Electric parking brake ECU related
      Release1 Control Status

      Release output information display/

      ON or OFF

      		 - Electric parking brake ECU related
      Parking Brake Light

      Parking brake indicator light (RED) output information display/

      OFF / LIGHT / BLINK

      		 - Electric parking brake ECU related

      EPB Warning Light

      (*)

      Electric parking brake warning light output information display/

      OFF / LIGHT / BLINK

      		 - Electric parking brake ECU related
      AUTO Light

      AUTO indicator output information display/

      OFF / NORMAL / DARK

      		 - Electric parking brake ECU related
      Buzzer

      Buzzer ON output information display/

      ON or OFF

      ON: Buzzer ON

      OFF: Buzzer OFF

      		 Electric parking brake ECU related
      Request to METER ECU

      Meter display demand output information display/

      ON or OFF

      ON: During meter display communication

      OFF: After meter display communication is complete

      		 Electric parking brake ECU related
      Communication Brake System

      Communication with skid control ECU display/

      ON or OFF

      ON: Communicating

      OFF: Not communicating

      		 CAN communication system
      Communication G Sensor

      Communication with yaw rate and acceleration sensor display/

      ON or OFF

      ON: Communicating

      OFF: Not communicating

      		 CAN communication system
      Communication ECT

      Communication with TCM display/

      ON or OFF

      ON: Communicating

      OFF: Not communicating

      		 CAN communication system
      Communication CAN

      Air conditioning amplifier communication display/

      ON or OFF

      ON: Communicating

      OFF: Not communicating

      		 CAN communication system
      Communication Main Body

      Communication with main body ECU display/

      ON or OFF

      ON: Communicating

      OFF: Not communicating

      		 CAN communication system
      PKB Lock Status

      Lock status display/

      ON or OFF

      		 - Electric parking brake switch related
      PKB Release Status

      Release status display/

      ON or OFF

      		 - Electric parking brake switch related
      PKB Unkown Status

      Parking brake status unknown display/

      ON or OFF

      		 - -
      PKB Lock Permit

      Parking brake lock control permission display/

      ON or OFF

      		 - -
      PKB Release Permit

      Parking brake release control permission display/

      ON or OFF

      		 - -
      Dynamic Parking Permit

      Dynamic parking control permission display/

      ON or OFF

      		 - -
      Anti-lock Control Permit

      Anti-lock control permission display/

      ON or OFF

      		 - -
      Auto Mode

      AUTO mode permission display/

      ON or OFF

      		 - -
      PKB when Moving

      Dynamic parking brake operation display/

      ON or OFF

      ON: Dynamic parking brake is operating

      OFF: Dynamic parking brake is not operating

      		 -
      Auto Mode Memory

      Previous auto mode operation memory availability display/

      ON or OFF

      		 - -
      Auto Ready Status

      Auto control permission display/

      ON or OFF

      ON: Permitted

      OFF: Not permitted

      		 -
      Lock SW Open/Short Circuit

      Lock switch open, short display/

      OK or NG

      		 - -
      Lock SW Comparison

      Lock switch comparison display/

      OK or NG

      		 - -
      Release SW Open/Short Circuit

      Release switch open, short display/

      OK or NG

      		 - -
      Release SW Comparison

      Release switch comparison display/

      OK or NG

      		 - -
      Deceleration Sensor Comparison

      Yaw rate and acceleration sensor comparison malfunction display/

      OK or NG

      		 - -
      Deceleration Sensor

      Yaw rate and acceleration sensor fixed malfunction display/

      OK or NG

      		 - -
      Deceleration Sensor Output

      Yaw rate and acceleration sensor output malfunction display/

      OK or NG

      		 - -
      Deceleration Sensor1

      Yaw rate and acceleration sensor 1 malfunction display/

      OK or NG

      		 - -
      Deceleration Sensor2

      Yaw rate and acceleration sensor 2 malfunction display/

      OK or NG

      		 - -
      FR Speed Sensor Open/Short

      Front right wheel speed sensor open, short malfunction display/

      OK or NG

      		 - -
      FL Speed Sensor Open/Short

      Front left wheel speed sensor open, short malfunction display/

      OK or NG

      		 - -
      RR Speed Sensor Open/Short

      Rear right wheel speed sensor open, short malfunction display/

      OK or NG

      		 - -
      RL Speed Sensor Open/Short

      Rear left wheel speed sensor open, short malfunction display/

      OK or NG

      		 - -
      FR Speed Sensor PWR Source

      Front right wheel speed sensor power source malfunction display/

      OK or NG

      		 - -
      FL Speed Sensor PWR Source

      Front left wheel speed sensor power source malfunction display/

      OK or NG

      		 - -
      RR Speed Sensor PWR Source

      Rear right wheel speed sensor power source malfunction display/

      OK or NG

      		 - -
      RL Speed Sensor PWR Source

      Rear left wheel speed sensor power source malfunction display/

      OK or NG

      		 - -
      Brake Communication Failure

      Skid control ECU communication malfunction display/

      OK or NG

      		 - -
      Deceleration Commu Failure

      Yaw rate and acceleration sensor communication malfunction display/

      OK or NG

      		 - -
      ECT Communication Failure

      TCM communication malfunction display/

      OK or NG

      		 - -
      Actuator Over Current

      Overcurrent display/

      OK or NG

      		 - -
      Tension Sensor

      Tension unchanged display/

      OK or NG

      		 - -
      Energize to Actuator Time Out

      Long term continuity malfunction display/

      OK or NG

      		 - -
      Parking Brake Cable Malfunction

      Cable open display/

      OK or NG

      		 - -
      Actuator Clutch Malfunction

      Clutch malfunction display/

      OK or NG

      		 - -
      Invalid Deceleration Comp

      Yaw rate and acceleration sensor comparison invalid display/

      ENABLE or DISABLE

      		 - -
      Invalid Deceleration Zero Pt

      Yaw rate and acceleration sensor zero point invalid display/

      ENABLE or DISABLE

      		 - -
      Invalid Deceleration

      Yaw rate and acceleration sensor stuck malfunction display/

      ENABLE or DISABLE

      		 - -
      Invalid Deceleration PWR

      Yaw rate and acceleration sensor power source voltage invalid display/

      ENABLE or DISABLE

      		 - -
      Invalid Deceleration 1

      Yaw rate and acceleration sensor 1 invalid display/

      ENABLE or DISABLE

      		 - -
      Invalid Deceleration 2

      Yaw rate and acceleration sensor 2 invalid display/

      ENABLE or DISABLE

      		 - -
      Invalid Tension Sensor Output

      Tension sensor output invalid display/

      ENABLE or DISABLE

      		 - -
      Invalid Tension Sensor PWR

      Tension sensor power source invalid display/

      ENABLE or DISABLE

      		 - -
      Invalid Tension Sensor Comp

      Tension sensor comparison invalid display/

      ENABLE or DISABLE

      		 - -
      Number of Trouble Code

      Number of DTC recorded/

      min.: 0

      max.: 255

      		 0 -

      Tech Tips

      *: EPB stands for electric parking brake

  2. PERFORM 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. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester ON.

    4. Enter the following menus:

      Select: Chassis / Electric Parking Brake / Active Test /

    5. Perform the Active Test by referring to the table below.

      Electric Parking Brake
      Tester Display Test Part Control Range Diagnostic Note
      Auto Light AUTO switch light ON or OFF Vehicle speed is 0 km/h (0 mph)

      EPB Warning Light

      (*)

      		 Brake warning light / Yellow (Minor Malfunction) ON or OFF Vehicle speed is 0 km/h (0 mph)
      PKB Light Parking brake indicator light (RED) ON or OFF Vehicle speed is 0 km/h (0 mph)
      PKB Release1 Electric parking brake release - Vehicle speed is 0 km/h (0 mph)
      PKB Lock1 Electric parking brake lock - Vehicle speed is 0 km/h (0 mph)
      Test Mode

      Multi-information display's "EPB TEST" display

      (*)

      		 - Vehicle speed is 0 km/h (0 mph)
      Not Avail Display Multi-information display's "Parking Brake not available" display ON or OFF Vehicle speed is 0 km/h (0 mph)
      Check Display Multi-information display's "Check Parking Brake System" display ON or OFF Vehicle speed is 0 km/h (0 mph)
      Overheat Display Multi-information display's "Parking Brake Overheat" display ON or OFF Vehicle speed is 0 km/h (0 mph)
      P Range Display Multi-information display's "To park the vehicle, Shift to P range" display ON or OFF Vehicle speed is 0 km/h (0 mph)
      Lock Display Multi-information display's "The Parking brake has been automatically locked" display ON or OFF Vehicle speed is 0 km/h (0 mph)

      Tech Tips

      *: EPB stands for electric parking brake