Hyundai Genesis (DH): Parking Brake System / Electric Parking Brake (EPB) Description and Operation

Hyundai Genesis (DH) 2013-2016 Service Manual / Brake System / Parking Brake System / Electric Parking Brake (EPB) Description and Operation

Description
The EPB is an electronic parking brake.
The EPB is different from existing parking systems which are operated with the brake pedal or the lever type. The EPB system sends the signal to the ECU when a driver operates the EPB switch. The ECU operates the EPB actuator composed of motor and gears. The braking power is generated when the motor pulls the cable connected to the brake system.
The EPB module is one of the parts of EPB system. It monitors the signal of the various sensors in the system, executes a self diagnosis, and controls EPB system with programmed logic.
Main Function
1.
Static Braking Mode
It controls the operation and cancellation condition of the vehicle when the vehicle stops.
(1)
The operation condition: Pull the EPB switch regardless of ignition switch ON / OFF & the brake pedal pressed condition. (Pull).
A.
The Vehicle speed <= 6kph
(2)
The cancellation condition: Push the EPB switch with the ignition switch ON and under the brake pedal pressed condition (Push).
2.
Dynamic Braking Function
DBF (Dynamic Braking Function): The DBF is the braking function which can operate or cancel the EPB system while driving. This function is used when foreign materials get in between the brake pedal or the brake hydraulic line cannot be operated.
(1)
The operation condition
It operates only when the vehicle speed is faster than 6kph and the EPB switch is pushed.
(2)
The cancellation condition: The system is cancelled by not pulling the EPB switch.
(3)
Principle of Operation
A.
ESC system is normal condition: EPB requests applying pressure of brake to ESP system.
B.
ESC system is abnormal condition: EPB operates the parking brake for reduction of speed.
(4)
Special feature
If the anti-lock is operated, the anti-lock control is performed, and the parking lamp on the cluster keeps blinking in case of emergency braking.
3.
DAR(Drive Away Release)
For the driver

    Removal Parking Brake Pedal 1. Remove the crash pad lower panel. (Refer to Body - "Crash Pad") 2. Remove the IPM after removing the nut and connector.

    Components 1. EPB2. Bracket No.13. Bracket No.24. EPB Extension wiring harness5. Parking brake cable

    Other information:

    Hyundai Genesis (DH) 2013-2016 Service Manual: Photo Sensor Repair procedures

    Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and fall with lower intensive light.

    Hyundai Genesis (DH) 2013-2016 Service Manual: Temperature Control Actuator Repair procedures

    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the temperature control actuator connector. 3. Verify that the temperature control actuator operates to the warm (Driver's side) or cool (Passenger's side) position when connecting 12V to terminal 3 and grounding terminal 4.

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