Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026CP2
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for HV Model): FREEZE FRAME DATA; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

FREEZE FRAME DATA

FREEZE FRAME DATA

HINT:

  • 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.

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

Chassis > Brake/EPB

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

Power switch on (IG): 11.0 to 14.0 V

Changes in proportion to auxiliary battery voltage

BS1 Voltage Value

+BS terminal voltage value (Value detected by ECU)

Min.: 0.0 V, Max.: 25.5 V

Power switch on (IG): 11.0 to 14.0 V

Changes in proportion to auxiliary battery voltage

HINT:

This is the voltage detected at terminal +BS (which supplies power to electric parking brake system) 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 mph)

When driving at constant speed: No large fluctuations

FL Wheel Speed

Front wheel speed sensor LH reading

Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (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 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (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 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0 mph)

When driving at constant speed: No large fluctuations

Forward and Rearward G

Forward and rearward G

Min.: - 25.10 m/s2, Max.: 24.90 m/s2

-

During acceleration/deceleration: Changes in proportion with acceleration

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 %

The accelerator pedal released: 0 %

During accelerator pedal operation: Changes in proportion with the pedal movement

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

for continuously variable transaxle

Parking Brake SW

Parking brake switch assembly

OFF / ON

OFF: Parking brake released

ON: Parking brake applied

-

Deceleration Open

Acceleration sensor open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

-

ECU +B1 Voltage

Skid control ECU (brake actuator assembly) +B1 voltage

0.0 to 25.5 V

11 to 14 V

-

RH Actuator Motor Input Voltage

Parking brake motor RH (parking brake actuator assembly RH) input voltage

0.0 to 25.5 V

-

-

LH Actuator Motor Input Voltage

Parking brake motor LH (parking brake actuator assembly LH) input voltage

0.0 to 25.5 V

-

-

RH Actuator Motor +Terminal Voltage

Parking brake motor RH (parking brake actuator assembly RH) positive (+) terminal side voltage

0.0 to 25.5 V

-

-

LH Actuator Motor +Terminal Voltage

Parking brake motor LH (parking brake actuator assembly LH) positive (+) terminal side voltage

0.0 to 25.5 V

-

-

RH Actuator Motor -Terminal Voltage

Parking brake motor RH (parking brake actuator assembly RH) negative (-) terminal side voltage

0.0 to 25.5 V

-

-

LH Actuator Motor -Terminal Voltage

Parking brake motor LH (parking brake actuator assembly LH) negative (-) terminal side voltage

0.0 to 25.5 V

-

-

EPB Switch

Electric parking brake switch input

Neutral / Apply / Release / Unknown

Neutral: Lock switch and release switch are off

Apply: Lock switch on

Release: Release switch on

When not normal, electric parking brake switch release side system may be malfunctioning

HINT:

EPB stands for electric parking brake.

RH Actuator Motor Actual Current

Parking brake motor RH (parking brake actuator assembly RH) current value

-5.0362 to 50.5004 A

-

-

LH Actuator Motor Actual Current

Parking brake motor LH (parking brake actuator assembly LH) current value

-5.0362 to 50.5004 A

-

-

RH Actuator Status

Parking brake actuator assembly RH condition

Park Applied, Hold Applied, Released, Applying, Releasing, Completely Released or Unknown

-

-

LH Actuator Status

Parking brake actuator assembly LH condition

Park Applied, Hold Applied, Released, Applying, Releasing, Completely Released or Unknown

-

-

EPB Warning Light

Brake system warning light (yellow indicator) output signal

OFF or ON

OFF: Brake system warning light (yellow indicator) turns off

ON: Brake system warning light (yellow indicator) illuminates

-

Auto Mode Request

Auto mode request status

OFF or ON

-

-

EPB Lock Request

Lock demand status

OFF or ON

OFF: Not requested

ON: Requested

HINT:

EPB stands for electric parking brake.

Auto Mode

AUTO (shift-linked) mode permission status

OFF or ON

OFF: Manual mode.

ON: AUTO (shift-linked) mode

-

Dynamic PKB Mode

Dynamic parking brake operation status

OFF or ON

OFF: Dynamic parking brake is not operating

ON: Dynamic parking brake is operating

-

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

-

-

RH Actuator Current Status

Parking brake actuator assembly RH monitoring current condition

Normal or Invalid

-

-

LH Actuator Current Status

Parking brake actuator assembly LH monitoring current condition

Normal or Invalid

-

-

Permission of RH Interlocking PKB Lock

Parking brake actuator assembly RH parking brake lock control permission status

Available or Not available

-

-

Permission of RH Interlocking PKB Release

Parking brake actuator assembly RH parking brake release control permission status

Available or Not available

-

-

Permission of RH Interlocking Dynamic PKB

Parking brake actuator assembly RH dynamic parking control permission status

Available or Not available

-

-

Permission of RH Interlocking PKB Full Release

Parking brake actuator assembly RH parking brake full release permission status

Available or Not available

-

-

Permission of LH Interlocking PKB Lock

Parking brake actuator assembly LH parking brake lock control permission status

Available or Not available

-

-

Permission of LH Interlocking PKB Release

Parking brake actuator assembly LH parking brake release control permission status

Available or Not available

-

-

Permission of LH Interlocking Dynamic PKB

Parking brake actuator assembly LH dynamic parking control permission status

Available or Not available

-

-

Permission of LH Interlocking PKB Full Release

Parking brake actuator assembly LH parking brake full release permission status

Available or Not available

-

-

RH Actuator Motor Current High

Parking brake motor RH (parking brake actuator assembly RH) overcurrent status

OFF or ON

-

-

RH Actuator Motor Driver Operation Status

Parking brake motor RH (parking brake actuator assembly RH) driver status

OFF or ON

-

-

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

OFF or ON

-

-