DTC C0609-62: Electric Parking Brake Switch Signal Compare Failure [06/2018 - 09/2022]: Description

When the electric parking brake switch is pulled, a lock request signal is sent from the skid control ECU (brake actuator assembly) to the parking brake actuator assembly. When the electric parking brake switch is pushed, a release request signal is sent from the 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	for TMC Made Hatchback Produced before August 2019, for TMC Made Sedan Produced before October 2019 and for non-TMC Made Parking brake switch open or short circuit is detected for 1 seconds or more Parking brake switch stuck malfunction for TMC Made Hatchback Produced from September 2019 and for TMC Made Sedan Produced from November 2019 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 (electric parking brake switch assembly) Wire harness or connector Skid control ECU (brake actuator assembly)	DTC stored	An electric parking brake system malfunction is displayed on the multi-information display.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

Note

C0609-62

Electric Parking Brake Switch Signal Compare Failure

for TMC Made Hatchback Produced before August 2019, for TMC Made Sedan Produced before October 2019 and for non-TMC Made

Parking brake switch open or short circuit is detected for 1 seconds or more
Parking brake switch stuck malfunction

for TMC Made Hatchback Produced from September 2019 and for TMC Made Sedan Produced from November 2019

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 (electric parking brake switch assembly)
Wire harness or connector
Skid control ECU (brake actuator assembly)

DTC stored

An electric parking brake system malfunction is displayed on the multi-information display.

DTC DETECTION CONDITIONS: C0609-62 (FOR TMC MADE HATCHBACK PRODUCED BEFORE AUGUST 2019, FOR TMC MADE SEDAN PRODUCED BEFORE OCTOBER 2019 AND FOR NON-TMC MADE)

		Vehicle Condition
		Pattern 1	Pattern 2	Pattern 3
Diagnosis Condition	-	-	-	-
Malfunction Status	Parking brake switch open circuit is detected	◦	-	-
	Parking brake switch short circuit is detected	-	◦	-
	Parking brake switch stuck malfunction	-	-	◦
Detection Time		1 second or more	1 second or more	-
Number of Trips		1 trip	1 trip	1 trip

HINT:

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

DTC DETECTION CONDITIONS: C0609-62 (FOR TMC MADE HATCHBACK PRODUCED FROM SEPTEMBER 2019 AND FOR TMC MADE SEDAN PRODUCED FROM NOVEMBER 2019)

		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.