ELECTRIC PARKING BRAKE SYSTEM FREEZE FRAME DATA


  1. FREEZE FRAME DATA

    Tech Tips


    • When a DTC is stored, the freeze frame data stores the current vehicle (sensor) state as.

    • The freeze frame data cannot be cleared or updated until the recorded DTCs are cleared.


    1. Using the GTS, the state of the vehicle (sensors) when the system is operating or when a DTC was stored can be checked.


      Chassis > ABS/VSC/TRC/EPB
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      FR Speed Open Front speed sensor RH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      FL Speed Open Front speed sensor LH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      RR Speed Open Rear speed sensor RH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      RL Speed Open Rear speed sensor LH open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      EFI Communication Open ECM communication open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      Deceleration Open Acceleration sensor open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      FR Speed Sensor Voltage Open Front speed sensor RH voltage open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      FL Speed Sensor Voltage Open Front speed sensor LH voltage open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      RR Speed Sensor Voltage Open Rear speed sensor RH voltage open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      RL Speed Sensor Voltage Open Rear speed sensor LH voltage open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      Stop Light SW Stop light switch assembly OFF or ON

      OFF: Brake pedal released

      ON: Brake pedal depressed

      -
      Forward and Rearward G Forward and backward G

      Min.: -25.10 m/s2

      Max.: 24.90 m/s2

      - During acceleration/deceleration: Changes in proportion with acceleration
      FR Wheel Speed Front wheel speed sensor RH reading

      Min.: 0 km/h (0 MPH)

      Max.: 326 km/h (202 MPH)

      Vehicle stopped: 0 km/h (0 MPH) When driving at constant speed: No large fluctuations
      FL Wheel Speed Front wheel speed sensor LH reading

      Min.: 0 km/h (0 MPH)

      Max.: 326 km/h (202 MPH)

      Vehicle stopped: 0 km/h (0 MPH) When driving at constant speed: No large fluctuations
      RR Wheel Speed Rear wheel speed sensor RH reading

      Min.: 0 km/h (0 MPH)

      Max.: 326 km/h (202 MPH)

      Vehicle stopped: 0 km/h (0 MPH) When driving at constant speed: No large fluctuations
      RL Wheel Speed Rear wheel speed sensor LH reading

      Min.: 0 km/h (0 MPH)

      Max.: 326 km/h (202 MPH)

      Vehicle stopped: 0 km/h (0 MPH) When driving at constant speed: No large fluctuations
      Vehicle Speed Maximum wheel speed sensor reading

      Min.: 0 km/h (0 MPH)

      Max.: 326 km/h (202 MPH)

      Vehicle stopped: 0 km/h (0 MPH) When driving at constant speed: No large fluctuations
      Body ECU Communication Open Main body ECU (multiplex network body ECU) communication open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      IG Switch IG power source status OFF or ON

      OFF: IG power source voltage is not input to skid control ECU (brake actuator assembly)

      ON: IG power source voltage is input to skid control ECU (brake actuator assembly)

      -
      A/C ECU Communication Open Air conditioning amplifier assembly communication open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      Navigation ECU Communication Open Radio receiver assembly communication open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      Stop and Start ECU Communication Open Engine stop and start ECU communication open detection Error or Normal

      Error: Momentary interruption

      Normal: Normal

      -
      Vehicle Speed (Control Value) Vehicle speed (control value)

      Min.: 0.0 km/h (0.0 MPH)

      Max.: 326.4 km/h (202.8 MPH)

      - -
      ECU +B1 Voltage skid control ECU (brake actuator assembly) +B1 voltage 0.00 to 20.00 V 11 to 14 V -
      ECU +B2 Voltage skid control ECU (brake actuator assembly) +B2 voltage 0.00 to 20.00 V 11 to 14 V -
      RH Actuator Motor Input Voltage Parking brake motor RH (parking brake actuator assembly RH) input voltage 0.00 to 20.00 V - -
      RH Actuator Motor +Terminal Voltage Parking brake motor RH (parking brake actuator assembly RH) positive (+) terminal side voltage 0.00 to 20.00 V - -
      RH Actuator Motor -Terminal Voltage Parking brake motor RH (parking brake actuator assembly RH) negative (-) terminal side voltage 0.00 to 20.00 V - -
      LH Actuator Motor Input Voltage Parking brake motor LH (parking brake actuator assembly LH) input voltage 0.00 to 20.00 V - -
      LH Actuator Motor +Terminal Voltage Parking brake motor LH (parking brake actuator assembly LH) positive (+) terminal side voltage 0.00 to 20.00 V - -
      LH Actuator Motor -Terminal Voltage Parking brake motor LH (parking brake actuator assembly LH) negative (-) terminal side voltage 0.00 to 20.00 V - -
      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 not normal, electric parking brake switch assembly release side system may be malfunctioning

      Tech Tips

      EPB stands for electric parking brake.

      Auto Mode Request Auto mode request status OFF or ON - -
      Shift Position Position of shift lever P, N, R, D or Unknown

      P: Shift lever in P

      N: Shift lever in N

      R: Shift lever in R

      D: Shift lever in D or M

      When not normal, shift position signal system may be malfunctioning
      IG Switch IG power source status OFF or ON

      OFF: IG power source voltage is not input to skid control ECU (brake actuator assembly)

      ON: IG power source voltage is input to skid control ECU (brake actuator assembly)

      -
      Lock Switch 1 Lock switch 1 input signal OFF, ON, Open or Short

      OFF: Lock switch off

      ON: Lock switch on

      When not normal, electric parking brake switch assembly lock side system may be malfunctioning
      Lock Switch 2 Lock switch 2 input signal OFF, ON, Open or Short

      OFF: Lock switch off

      ON: Lock switch on

      When not normal, electric parking brake switch assembly lock side system may be malfunctioning
      Release Switch 1 Release switch 1 input signal OFF, ON, Open or Short

      OFF: Release switch off

      ON: Release switch on

      When not normal, electric parking brake switch assembly release side system may be malfunctioning
      Release Switch 2 Release switch 2 input signal OFF, ON, Open or Short

      OFF: Release switch off

      ON: Release switch on

      When not normal, electric parking brake switch assembly release side system may be malfunctioning
      Brake Hold Ready Brake hold control permission status OFF or ON - -
      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

      Tech Tips

      EPB stands for electric parking brake.

      EPB Lock Request Lock demand status OFF or ON

      OFF: Not requested

      ON: Requested

      Tech Tips

      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 Parking brake actuator assembly RH monitoring current condition Inval or Valid Valid -
      LH Actuator Current Status Parking brake actuator assembly LH monitoring current condition Inval or Valid Valid -
      RH Actuator Nut Stroke Parking brake actuator assembly RH nut stroke value 0.000 to 8.160 mm (0.000 to 0.321 in.) - -
      LH Actuator Nut Stroke Parking brake actuator assembly LH nut stroke value 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 -5.0362 to 50.5000 A - -
      RH Actuator Motor Adjustment Current Parking brake motor RH (parking brake actuator assembly RH) current calibration value -6.9690 to 6.9140 A - -
      RH Actuator 0 load Current Parking brake actuator assembly RH current value with no load -5.0362 to 50.5000 A - -
      LH Actuator Motor Actual Current Parking brake motor LH (parking brake actuator assembly LH) current value -5.0362 to 50.5000 A - -
      LH Actuator Motor Adjustment Current Parking brake motor LH (parking brake actuator assembly LH) current calibration value -6.9690 to 6.9140 A - -
      LH Actuator 0 load Current Parking brake actuator assembly LH current value with no load -5.0362 to 50.5000 A - -
      Counter of IG ON After EPB Control Cancel Number of times the engine switch was turned on (IG) after EPB control was cancelled 0 to 255 Times - -
      RH Actuator Status Parking brake actuator assembly RH condition Default, Lock Standby, Lock, Lock Dynamic, Release Standby, Release, Lock Faulty, Unexpected, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock1, Lock2, Lock3, Lock4, Lock5, Lock6, Lock7, Release1, Release2 or Release3 - -
      LH Actuator Status Parking brake actuator assembly LH condition Default, Lock Standby, Lock, Lock Dynamic, Release Standby, Release, Lock Faulty, Unexpected, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock1, Lock2, Lock3, Lock4, Lock5, Lock6, Lock7, Release1, Release2 or Release3 - -
      RH Actuator Motor Current Differential Differences in parking brake motor RH (parking brake actuator assembly RH) monitoring current -1.008 to 0.945 A - -
      LH Actuator Motor Current Differential Differences in parking brake motor LH (parking brake actuator assembly LH) monitoring current -1.008 to 0.945 A - -
      Detailed Freeze DTC Number of detailed freeze DTCs 0 to 65535 - -
      RH Actuator Motor Gradient Current Parking brake motor RH (parking brake actuator assembly RH) current gradient -5.0362 to 50.5000 A - -
      LH Actuator Motor Gradient Current Parking brake motor LH (parking brake actuator assembly LH) current gradient -5.0362 to 50.5000 A - -
      RH Actuator Motor Relay1 Parking brake motor relay 1 RH condition OFF or ON - -
      RH Actuator Motor Relay2 Parking brake motor relay 2 RH condition OFF or ON - -
      RH Actuator Motor Relay3 Parking brake motor relay 3 RH condition OFF or ON - -
      RH Actuator Motor Relay4 Parking brake motor relay 4 RH condition OFF or ON - -
      LH Actuator Motor Relay1 Parking brake motor relay 1 LH condition OFF or ON - -
      LH Actuator Motor Relay2 Parking brake motor relay 2 LH condition OFF or ON - -
      LH Actuator Motor Relay3 Parking brake motor relay 3 LH condition OFF or ON - -
      LH Actuator Motor Relay4 Parking brake motor relay 4 LH condition OFF or ON - -
      Pull Up Resistor Pull up resistor status OFF or ON - -
      RH Actuator Motor Current High Parking brake motor RH (parking brake actuator assembly RH) overcurrent OFF or ON - -
      RH Actuator Motor Driver Operation Status Parking brake motor RH (parking brake actuator assembly RH) driver status OK or NG - -
      LH Actuator Motor Current High Parking brake motor LH (parking brake actuator assembly LH) overcurrent status OFF or ON - -
      LH Actuator Motor Driver Operation Status Parking brake motor LH (parking brake actuator assembly LH) driver status OK or NG - -