Check whether left brake disc, pad and actuator are normal visually

After IGN OFF/ON, perform apply/realse several times. Then IGN OFF/ON again. Check DTC became historic

As performing EPB apply/relase, compare right and left actuation sound

Check whether it runs for long time or stop and run again on the left side

If it is hard to tell, connect GDS and use actuation function in GDS

By releasing one side only with GDS and pulling EPB switch can be used to listen to one side applying. Both side can be compared.

Check whether left side takes longer or it stop and runs again.

Check clamping force on left side

Does left side takes longer to clamp or it stop and runs again?

	▶ Check the wiring to see whether wiring is reversed.
	▶ Go to "Signal Circuit Inspection" procedure.

Ignition "OFF"

Disconnect EPB actuator LH and EPB ECU main harness connector.

Measure resistance between Motor(-),(+) terminal of EPB actuator LH harness connector and Motor(-),(+) terminal of EPB ECU harness connector.

Measure resistance between Motor(-),(+) terminal of EPB actuator LH harness connector and chassis ground .

Is the measured Value within specification?

	▶ Go to " Component inspection " procedure.
	▶ Check for open/short circuit between EPB ECU & actuator on left side and repair it. Then perform verification of vehicle repair.