ELECTRIC PARKING BRAKE SYSTEM DATA LIST / ACTIVE TEST


  1. READ DATA LIST

    Tech Tips

    Using the GTS 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 GTS to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: 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.: 0.000 V

      max.: 5.000 V

      		 0.5 to 4.5 V Tension sensor related
      Tension2 Voltage

      Tension sensor 2 voltage display/

      min.: 0.000 V

      max.: 5.000 V

      		 0.5 to 4.5 V Tension sensor related
      Target Tension

      Target tension display/

      min.: 0 N

      max.: 3571 N

      		 - -
      Zero Point of Tension1

      Tension sensor 1 zero point calibration voltage display/

      min.: 0.000 V

      max.: 5.000 V

      0.5 to 1.65 V

      (after calibrating zero point)

      		 Tension sensor related
      Zero Point of Tension2

      Tension sensor 2 zero point calibration voltage display/

      min.: 0.000 V

      max.: 5.000 V

      0.5 to 1.65 V

      (after calibrating zero point)

      		 Tension sensor related
      Motor Voltage Monitor

      Motor voltage display/

      min.: 0 V

      max.: 5 V

      		 - Motor related
      Motor Current Value

      Motor current actual value display/

      min.: -4.88 A

      max.: 48.81 A

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

      Motor current zero point calibration display/

      min.: -6.70 A

      max.: 6.70 A

      		 -1.63 to 1.63 A Motor related
      Lock Switch 1 Status

      Lock switch 1 input information display/

      ON, OFF, Open, SHORT or Unknown

      ON: Lock switch ON

      OFF: Lock switch OFF

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

      Lock switch 2 input information display/

      ON, OFF, Open or SHORT

      ON: Lock switch ON

      OFF: Lock switch OFF

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

      Release switch 1 input information display/

      ON, OFF, Open or SHORT

      ON: Release switch ON

      OFF: Release switch OFF

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

      Release switch 2 input information display/

      ON, OFF, Open or SHORT

      ON: Release switch ON

      OFF: Release switch OFF

      		 Electric parking brake switch assembly related (release side)
      Auto Switch

      AUTO switch/

      ON or OFF

      		 OFF This item is displayed on the GTS but is not used
      Stop Light Switch

      Stop light switch input information display/

      ON or OFF

      ON: Stop light switch ON (brake pedal depressed)

      OFF: Stop light switch OFF (brake pedal released)

      		 Stop light switch related
      FR Wheel Speed

      Front right wheel speed display/

      min.: 0.0 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.: 0.0 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.: 0.0 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.: 0.0 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.: 0.0 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

      Deceleration sensor (Airbag sensor assembly) 1 input display/

      min.: -18.327 m/s2

      max. : 18.183 m/s2

      When vehicle is stopped: 0.000 m/s2

      When driving vehicle: continuously changes

      • Deceleration sensor (Airbag sensor assembly) related

      • CAN communication system
      Deceleration Sensor 2

      Deceleration sensor (Airbag sensor assembly) 2 input display/

      min.: -18.327 m/s2

      max. : 18.183 m/s2

      When vehicle is stopped: 0.000 m/s2

      When driving vehicle: continuously changes

      • Deceleration sensor (Airbag sensor assembly) related

      • CAN communication system
      Forward and Rearward G

      Deceleration sensor (Airbag sensor assembly) input display/

      min.: -18.327 m/s2

      max. : 18.183 m/s2

      When vehicle is stopped: 0.000 m/s2

      When driving vehicle: continuously changes

      • Deceleration sensor (Airbag sensor assembly) related

      • CAN communication system
      Zero Point of Deceleration Sensor

      Deceleration sensor (Airbag sensor assembly) (GL1) zero point calibration display/

      min.: -4.595 m/s2

      max. : 4.559 m/s2

      0 m/s2

      		Deceleration sensor (Airbag sensor assembly) related
      Zero Point of Deceleration Sensor 2

      Deceleration sensor (Airbag sensor assembly) (GL2) zero point calibration display/

      min.: -4.595 m/s2

      max. : 4.559 m/s2

      0 m/s2

      		Deceleration sensor (Airbag sensor assembly) related
      P Position

      Shift lever position input information display/

      ON or OFF

      ON: Shift lever is in P

      OFF: Shift lever is not in P

      • Park/Neutral position switch

      • CAN communication system
      N Position

      Shift lever position input information display/

      ON or OFF

      ON: Shift lever in N

      OFF: Shift lever not in N

      • Park/Neutral position switch

      • CAN communication system
      R Position

      Shift lever position input information display/

      ON or OFF

      ON: Shift lever in R

      OFF: Shift lever not in R

      • Park/Neutral position switch

      • CAN communication system
      D Position

      Shift lever position input information display/

      ON or OFF

      ON: Shift lever in D

      OFF: Shift lever not in 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.: -6.50°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 - - This item is displayed on the GTS but is not used
      Brake Hold Control Mode - - This item is displayed on the GTS but is not used

      EPB Lock Demand

      (*)

      Lock demand information display/

      ON or OFF

      		 - This item is displayed on the GTS but is not used
      ECU Voltage Monitor

      +B power source voltage display/

      min.: 0.00 V

      max.: 20.00 V

      		 - +B input circuit
      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 parking brake ECU assembly

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

      		 IG circuit
      +B Voltage Value

      Electric parking brake motor power source information display/

      Lo, Mid or Hi

      		 Hi -
      Tension Sensor Voltage

      Tension sensor power source voltage display/

      min.: 0.000 V

      max.: 5.000 V

      		 4.75 to 5.0 V Tension sensor power source circuit
      Lock1 Control Status

      Routine lock output information display/

      ON or OFF

      		 - -
      Lock2 Control Status

      Dynamic parking brake output information display/

      ON or OFF

      		 - -
      Lock3 Control Status

      Re-lock output information display/

      ON or OFF

      		 - -
      Lock4 Control Status

      Release position lock output information display/

      ON or OFF

      		 - -
      Lock5 Control Status

      Maximum lock output information display/

      ON or OFF

      		 - -
      Lock6 Control Status

      Forced re-lock output information display/

      ON or OFF

      		 - -
      Release1 Control Status

      Release output information display/

      ON or OFF

      		 - -
      Parking Brake Light

      Parking brake indicator light (red) output information display/

      OFF, Light or Blink

      		 - -

      EPB Warning Light

      (*)

      Brake system warning light (Yellow indicator) output information display/

      OFF, Light or Blink

      		 - -
      AUTO Light

      AUTO indicator light output information display/

      OFF, Normal or Dark

      		 - This item is displayed on the GTS but is not used
      Request to METER ECU

      Communication with meter finished and transmission stopped/

      ON or OFF

      ON: Communication finished

      OFF: Communication not finished

      		 -
      Communication Brake System

      Communication with skid control ECU (master cylinder solenoid) display/

      ON or OFF

      ON: Communicating

      OFF: Not communicating

      		 CAN communication system
      Communication G Sensor

      Communication with deceleration sensor (airbag sensor assembly) display/

      ON or OFF

      ON: Communicating

      OFF: Not communicating

      		 CAN communication system
      Communication ECT

      Communication with ECM display/

      ON or OFF

      ON: Communicating

      OFF: Not communicating

      		 CAN communication system
      Communication HV - OFF This item is displayed on the GTS but is not used
      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 (multiplex network 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 assembly related
      PKB Release Status

      Release status display/

      ON or OFF

      		 - Electric parking brake switch assembly 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

      		 - This item is displayed on the GTS but is not used
      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

      		 OK -
      Lock SW Comparison

      Lock switch comparison display/

      OK or NG

      		 OK -
      Release SW Open/Short Circuit

      Release switch open, short display/

      OK or NG

      		 OK -
      Release SW Comparison

      Release switch comparison display/

      OK or NG

      		 OK -
      Deceleration Sensor Comparison

      Deceleration sensor (Airbag sensor assembly) comparison malfunction display/

      OK or NG

      		 OK -
      Deceleration Sensor

      Deceleration sensor (Airbag sensor assembly) fixed malfunction display/

      OK or NG

      		 OK -
      Deceleration Sensor Output

      Deceleration sensor (Airbag sensor assembly) output malfunction display/

      OK or NG

      		 OK -
      Deceleration Sensor1

      Deceleration sensor (Airbag sensor assembly) 1 malfunction display/

      OK or NG

      		 OK -
      Deceleration Sensor2

      Deceleration sensor (Airbag sensor assembly) 2 malfunction display/

      OK or NG

      		 OK -
      FR Speed Sensor Open/Short

      Front right wheel speed sensor open, short malfunction display/

      OK or NG

      		 OK -
      FL Speed Sensor Open/Short

      Front left wheel speed sensor open, short malfunction display/

      OK or NG

      		 OK -
      RR Speed Sensor Open/Short

      Rear right wheel speed sensor open, short malfunction display/

      OK or NG

      		 OK -
      RL Speed Sensor Open/Short

      Rear left wheel speed sensor open, short malfunction display/

      OK or NG

      		 OK -
      FR Speed Sensor PWR Source

      Front right wheel speed sensor power source malfunction display/

      OK or NG

      		 OK -
      FL Speed Sensor PWR Source

      Front left wheel speed sensor power source malfunction display/

      OK or NG

      		 OK -
      RR Speed Sensor PWR Source

      Rear right wheel speed sensor power source malfunction display/

      OK or NG

      		 OK -
      RL Speed Sensor PWR Source

      Rear left wheel speed sensor power source malfunction display/

      OK or NG

      		 OK -
      Brake Communication Failure

      Skid control ECU (Master cylinder solenoid) communication malfunction display/

      OK or NG

      		 OK -
      Deceleration Commu Failure

      Deceleration sensor (Airbag sensor assembly) communication malfunction display/

      OK or NG

      		 OK -
      ECT Communication Failure

      ECM communication malfunction display/

      OK or NG

      		 OK -
      EHV Communication Failure - - This item is displayed on the GTS but is not used
      Actuator Over Current

      Overcurrent display/

      OK or NG

      		 OK -
      Tension Sensor

      Tension unchanged display/

      OK or NG

      		 OK -
      Energize to Actuator Time Out

      Long term continuity malfunction display/

      OK or NG

      		 OK -
      Parking Brake Cable Malfunction

      Cable open display/

      OK or NG

      		 OK -
      Actuator Clutch Malfunction

      Clutch malfunction display/

      OK or NG

      		 OK -
      Invalid Deceleration Comp

      Deceleration sensor (Airbag sensor assembly) comparison invalid display/

      Enable or Disable

      		 - -
      Invalid Deceleration Zero Pt

      Deceleration sensor (Airbag sensor assembly) zero point invalid display/

      Enable or Disable

      		 - -
      Invalid Deceleration

      Deceleration sensor (Airbag sensor assembly) stuck malfunction display/

      Enable or Disable

      		 - -
      Invalid Deceleration PWR

      Deceleration sensor (Airbag sensor assembly) power source voltage invalid display/

      Enable or Disable

      		 - -
      Invalid Deceleration 1

      Deceleration sensor (Airbag sensor assembly) 1 invalid display/

      Enable or Disable

      		 - -
      Invalid Deceleration 2

      Deceleration sensor (Airbag sensor assembly) 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

      		 - -
      Low Tension operation Counter

      Low tension operation counter/

      min.: 0 Times

      max. : 16777215 Times

      		 - -
      Number of Trouble Codes

      Number of DTCs recorded/

      min.: 0

      max. : 255

      		 0 -
      Middle Tension operation Counter

      Middle tension operation counter/

      min.: 0 Times

      max. : 65535 Times

      		 - -
      High Tension operation Counter

      High tension operation counter/

      min.: 0 Times

      max. : 65535 Times

      		 - -

      Tech Tips

      *: EPB stands for electric parking brake.

  2. PERFORM ACTIVE TEST

    Tech Tips

    Using the GTS 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 GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: 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 indicator light ON or OFF This item is displayed on the GTS but is not used

      EPB Warning Light

      (*)

      		 Brake system warning light (yellow indicator) 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 ON or OFF Vehicle speed is 0 km/h (0 mph)
      PKB Lock1 Electric parking brake lock ON or OFF Vehicle speed is 0 km/h (0 mph)
      Not Avail Display Warning displayed on multi-information display indicating parking brake does not operate ON or OFF Vehicle speed is 0 km/h (0 mph)
      Check Display Warning displayed on multi-information display indicating malfunction in electric parking brake system ON or OFF Vehicle speed is 0 km/h (0 mph)
      Overheat Display Warning displayed on multi-information display indicating parking brake does not operate due to high temperatures ON or OFF Vehicle speed is 0 km/h (0 mph)
      P Range Display Displays message on multi-information display indicating to move shift lever to P when parking ON or OFF Vehicle speed is 0 km/h (0 mph)
      Release Display Displays message on multi-information display indicating to depress brake pedal when parking brake is released ON or OFF Vehicle speed is 0 km/h (0 mph)
      Lock Display Displays message on multi-information display indicating parking brake is automatically locked ON or OFF Vehicle speed is 0 km/h (0 mph)
      Interlocking Shift OFF Display Warning displayed on multi-information display indicating AUTO (shift-linked) function is off ON or OFF Vehicle speed is 0 km/h (0 mph)
      Interlocking Shift ON Display Warning displayed on multi-information display indicating AUTO (shift-linked) function is on ON or OFF Vehicle speed is 0 km/h (0 mph)
      PKB Haul Display Warning displayed on multi-information display indicating parking brake is dragging ON or OFF Vehicle speed is 0 km/h (0 mph)
      Lock Faulty Display Warning displayed on multi-information display indicating parking brake is not completely locked ON or OFF Vehicle speed is 0 km/h (0 mph)

      Tech Tips

      *: EPB stands for electric parking brake.