DTC C1245: Deceleration Sensor [10/2020 - 10/2023]: Description

The parking brake ECU assembly receives vehicle tilt information from the deceleration sensor (yaw rate sensor) via CAN communication.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Memory	Note
C1245	Deceleration Sensor	Detection Condition 1: Diagnosis Condition: Power switch on (IG) Malfunction Status: Malfunction signal input from deceleration sensor Malfunction Duration: Approximately 0.3 seconds Detection Condition 2: Diagnosis Condition: From when the vehicle speed is 30 km/h (19 mph) or more until just before the vehicle stops (exceeds 0 km/h (0 mph), but below 1 km/h (1 mph)) Malfunction Status: The difference between the maximum and minimum value of the deceleration sensor is less than 0.288 m/s² Malfunction Duration: The malfunction status repeats 16 times Detection Condition 3: Diagnosis Condition: Driving at a vehicle speed of 1 km/h (1 mph) or more Malfunction Status: The difference between the output values for deceleration sensor 1 and 2 is 5.884 m/s² or more Malfunction Duration: 60 seconds	Deceleration sensor (Yaw rate sensor)	Yes	An electric parking brake system malfunction is displayed on the multi-information display.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

Note

C1245

Deceleration Sensor

Detection Condition 1:

Detection Condition 2:

Diagnosis Condition:
From when the vehicle speed is 30 km/h (19 mph) or more until just before the vehicle stops (exceeds 0 km/h (0 mph), but below 1 km/h (1 mph))
Malfunction Status:
The difference between the maximum and minimum value of the deceleration sensor is less than 0.288 m/s²
Malfunction Duration:
The malfunction status repeats 16 times

Detection Condition 3:

Diagnosis Condition:
Driving at a vehicle speed of 1 km/h (1 mph) or more
Malfunction Status:
The difference between the output values for deceleration sensor 1 and 2 is 5.884 m/s² or more
Malfunction Duration:
60 seconds

Deceleration sensor (Yaw rate sensor)

Yes

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

DTC DETECTION CONDITION COMBINATION TABLE: C1245

		Vehicle Condition
		Pattern 1	Pattern 2	Pattern 3
Diagnosis Condition	Power switch on (IG)	◦	-	-
	From when the vehicle speed is 30 km/h (19 mph) or more until just before the vehicle stops (exceeds 0 km/h (0 mph), but below 1 km/h (1 mph))	-	◦	-
	Driving at a vehicle speed of 1 km/h (1 mph) or more	-	-	◦
Malfunction Status	Malfunction signal input from deceleration sensor	◦	-	-
	The difference between the maximum and minimum value of the deceleration sensor is less than 0.288 m/s²	-	◦	-
	The difference between the output values for deceleration sensor 1 and 2 is 5.884 m/s² or more	-	-	◦
Detection Time		Approximately 0.3 seconds	Repeats 16 times	60 seconds
Trip Count		1 trip	1 trip	1 trip

HINT:

If the conditions match either of these patterns, a DTC will be output.