System

SYSTEM

System Description

- When the parking brake is being operated, the electric parking brake indicator lamp in the combination meter and the parking brake switch indicator turn ON.
- When the parking brake is released, electric parking brake indicator lamp in the combination meter and the parking brake switch indicator turn OFF.
- This sends the parking brake switch operation signal to the electric parking brake control module.
- The electric parking brake control module drives the motor in the parking brake actuator.
- The motor generates the rotational starting torque, which is transmitted to the reduction gear clutch
shaft equalizer (tension sensor) rear cable parking brake shoe to apply and release the parking brake.
NOTE:
The equalizer and tension sensor are integrated.

- When a malfunction occurs in the system, the master warning lamp (yellow) turn ON and the function for entering the fail-safe status is held.
- When parking brake switch is pulled/pushed during system malfunction, electric parking brake indicator lamp blinks and master warning lamp (red) turns ON when electric parking brake cannot be operated. It restricts braking and release operations of electric parking brake.
NOTE:
The parking brake can be manually released.
- When a malfunction occurs in the system and the parking brake cannot be released, release the parking brake manually. To release, remove the cap on release hole in luggage floor, press and rotate the emergency release cable counterclockwise until it locks.

SYSTEM DIAGRAM

INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table.

ELECTRIC PARKING BRAKE OPERATION

Normal Operation

- When the parking brake switch is pulled while the vehicle is stopped, the parking brake begins to be applied (tensile force begins to be applied to the rear cable).
- When the parking brake braking force reaches the prescribed value (rear cable tensile force), the electric parking brake indicator lamp turns ON.
- Pulling the parking brake switch again increases the parking brake braking force (increases the rear cable tensile force).
NOTE:
Use this when the parking brake braking force alone is insufficient, such as when parking on a slope, etc.
- When the power switch is turned OFF, the electric parking brake indicator lamp turns OFF.
NOTE:
Braking force of the parking brake is held.
Normal Release (power switch ON)

- The parking brake is released when the parking brake switch is pressed while the brake pedal is depressed, the power switch is ON, and the parking brake is operating.
NOTE:
Just pressing the parking brake switch does not release the parking brake.
- When release of the parking brake is completed (tensile force on the rear cable disappears), the electric parking brake indicator lamp turns OFF.
Normal Release (power switch OFF)

- The parking brake cannot be released by just pushing the parking brake switch while the power switch is
OFF, the parking brake is applied, and the brake pedal is being depressed.
NOTE:
- Just pressing the parking brake switch does not release the parking brake.
- The parking brake can be released by turning ON the power switch and pressing the parking brake switch while depressing the brake pedal.
- The electric parking brake indicator lamp turns OFF.
NOTE:
Braking force of the parking brake is in the hold status.
Automatic Release

- The parking brake automatically releases when vehicle is driving under the following conditions.
- Vehicle READY status
- The seat belt (driver side) is fastened.
- The select lever is in the D, R or ECO position.
- The accelerator pedal is depressed.
- When release of the parking brake is completed (tensile force on the rear cable disappears), the electric parking brake indicator lamp turns OFF.
Driving

- When parking brake switch is pulled while driving, parking brake starts to operate (tension is loaded to rear cable), and electric parking brake indicator lamp illuminates. When pulling operation is stopped, the parking brake operation is canceled and electric parking brake indicator lamp turns OFF.
- When parking brake is pulled while driving immediately before the vehicle stops, the parking brake begins to be applied (tensile force begins being applied to the rear cable) and the electric parking brake indicator lamp turns ON.
NOTE:
The parking brake braking force is weaker than when the vehicle is stopped until the vehicle comes to a stop.
- When parking brake switch is pulled after vehicle stop, parking brake starts to operate again (tension is loaded to rear cable), and electric parking brake indicator lamp turns OFF.
- When the parking brake braking force reaches the prescribed value (rear cable tensile force), the electric parking brake indicator lamp turns ON.

CONDITION FOR OPERATION OF THE WARNING LAMP AND THE INDICATOR LAMP

Turns ON when power switch turns ON and turns OFF when the system is normal, for bulb check.