DTC C1245: Deceleration Sensor [02/2019 - 12/2021]: Description

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

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Memory	Note
C1245	Deceleration Sensor	One of the following conditions is met: An error signal is sent from the deceleration sensor (airbag ECU assembly) for approx. 0.3 seconds. Vehicle speed between 30 km/h (19 mph) or more until just before the vehicle stops (exceeds 0 km/h (0 mph) but less than 1 km/h (1 mph)) and the difference between the maximum and minimum value of the G sensor is less than 0.288 m/s² and the malfunction repeats 16 times. The ignition switch is ON, the difference between the output values for G sensor 1 and 2 is 5.884 m/s² or more for 60 seconds.	Deceleration sensor (airbag ECU assembly)	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	Ignition switch ON	◦	-	◦
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	Malfunction signal input from deceleration sensor (airbag ECU assembly)	◦	-	-
	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.