DTC C0609-62: Electric Parking Brake Switch Signal Compare Failure [12/2021 - ]: Description

When the electric parking brake switch (integration control and panel assembly) is pulled, a lock request signal is sent from the No. 2 skid control ECU (brake actuator assembly) to the parking brake actuator assembly. When the electric parking brake switch (integration control and panel assembly) is pushed, a release request signal is sent from the No. 2 skid control ECU (brake actuator assembly) to the parking brake actuator assembly.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Memory	Note
C0609-62	Electric Parking Brake Switch Signal Compare Failure	Open or short detected in parking brake switch circuit for 1 second or more Stuck parking brake switch detected (when parked: 30 seconds, when driving: 1 second, during engine stall: 1 second) Stuck parking brake switch detected 3 times in succession when being operated	Electric parking brake switch (integration control and panel assembly) Wire harness or connector No. 2 skid control ECU (brake actuator assembly)	DTC stored	An electric parking brake system malfunction is displayed on the multi-information display.

DTC DETECTION CONDITIONS

		Vehicle Condition
		Pattern 1	Pattern 2	Pattern 3	Pattern 4	Pattern 5	Pattern 6
Diagnosis Condition	Vehicle is stopped	-	-	◦	-	-	-
	Vehicle is being driven	-	-	-	◦	-	-
	During initial check	-	-	-	-	◦	-
	Parking brake switch is being operated	-	-	-	-	-	◦
Malfunction Status	Open detected in parking brake switch circuit	◦	-	-	-	-	-
	Short detected in parking brake switch circuit	-	◦	-	-	-	-
	Stuck parking brake switch detected	-	-	◦	◦	◦	◦
Detection Time		1 second or more	1 second or more	30 seconds or more	1 second or more	1 second or more	-
Number of Trips		1 trip	1 trip	1 trip	1 trip	1 trip	3 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.