Electric Parking Brake (EPB) Locked

The parking brake remains engaged.

The fault is usually signaled by the parking brake warning light.

NOTE:

If the system is working manually and a change of state (OFF/ON) is requested through the button, the system signals any fault (impossibility of changing state) through a buzzer.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
STEP	CHECK USING DIAGNOSIS EQUIPMENT	EVERYTHING OK	PROBLEMS ENCOUNTERED	OPERATION
1	Connect the diagnosis equipment and check the following in CAN INFORMATION: No control unit inactive; That there are no faulty control units; No control unit with faulty Controller Area Network (CAN) circuit;	Go to Step 2 .	1. Control unit faulty	1. Proceed as instructed by the diagnostic scan tool.
1		Go to Step 2 .	2. Control units with faulty CAN circuit	1. Proceed as instructed by the diagnostic scan tool.
2	Connect the diagnosis equipment and check on the Antilock Brake System (ABS)/EPB control unit in error environment mode: that there are no faults	End of diagnosis	1. Errors present	1. Proceed as instructed by the diagnostic scan tool.
2		End of diagnosis	2.EPB switch error	Go to Step 3 .
3	Check operation of the parking brake switch and continuity/insulation of connectors between switch and ABS/EPB control unit. Refer to PARKING BRAKE, DESCRIPTION AND OPERATION .	End of diagnosis	1. Switch fault	1. Replace the switch. Refer to SWITCH, ELECTRIC PARK BRAKE, REMOVAL AND INSTALLATION .
3		End of diagnosis	2. Connections broken/not insulated	2. Repair the electrical connections.