Electronic Parking Brake Control Module Description
Vehicles with the electric parking brake have a switch in the center console, which takes the place of the manual parking brake system, the foot pedal and release handle. In case of insufficient electrical power, the electric parking brake cannot be applied or released.
System Component Description
The park brake system consists of the following
System Operation
Park brake apply input force is received by activating the electronic parking brake switch signaling the EPB control module, and transfers an evenly distributed force through the parking brake cables and equalizer to the parking brake apply levers. The parking brake apply levers multiply and transfer the input force to the parking brake actuators which expand the parking brake shoes toward the friction surface of the drum-in-hat portion of the rear brake rotors to prevent the rotation of the rear tire and wheel assemblies. The electronic parking brake switch is activated signals the EPB module to release applied input force to the parking brake cables. The EPB module then removes the applied input force and releases the parking brake.
| DTC | Index |
|---|---|
| DTC C028A | Park Brake Motor Circuit |
| DTC C028B | Park Brake Motor Position Sensor Signal |
| DTC C028D | Replace Park Brake Pad Malfunction |
| DTC C028F | Park Brake Solenoid Actuator Circuit |
| DTC C0293 | Park Brake Switch Control |
| DTC C0298 | Park Brake Unlatch Switch Circuit Malfunction |
| DTC C0558 | Calibration Data |
| DTC C0561 | System Disabled Information Stored-Invalid Serial Data Received |
| DTC C056D | Electronic control module |
| DTC C056E | Electronic Control Unit Software |
| DTC C0574 | Circuit Board Temperature Sensor |
HANDBRAKE DTC INDEX
Circuit/System Description
The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation. The electric parking brake module will also diagnose the internal park brake motor circuit to verify it is functioning properly. The park brake motor circuit is used to command motor operation, apply and release tension on the parking brake cable, which will apply and release the parking brake.
The electric park brake will self diagnose the internal Park Brake Motor Circuit. This circuit is used to drive the motor, which pulls on the electric park brake cable, ultimately applying and releasing the park brake.
Description and Operation
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation. The electric parking brake module also contains an internal park brake motor position sensor which monitors the internal park brake motor position.
The Park Brake Motor Position Sensor is incorporated in the park brake control module. The sensor is used to monitor the internal park brake motor position.
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The electric parking brake module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake module also contains the logic for applying and releasing the park brake when commanded by the electric parking brake switch. When the electric parking brake module receives a signal from the switch, the internal circuit board temperature is checked to verify it is within operating range before the module performs the requested operation.
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation. The electric parking brake module contains an internal park brake solenoid actuator, and performs diagnostics on the solenoid actuator circuitry to verify it is functioning properly
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. The electric parking brake module will perform diagnostics on the electric parking brake switch and its wiring harness to verify it is functioning properly. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation.
The electric park brake switch control diagnostic checks for failure conditions in the electric park brake switch and associated wiring into the electric park brake module.
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the park brake control switch. When the parking brake control module receives a signal from the switch, the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation.
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation.
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation. The electric parking brake module will verify it has a valid signal from other modules before it performs the requested operation.
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation. The electric parking brake module will perform diagnostics on the modules internal hardware to verify it is functioning properly
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation.
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION
The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the control module performs the requested operation.
ELECTRONIC PARKING BRAKE CONTROL MODULE DESCRIPTION