DTC C1246: Master Cylinder Pressure Sensor Malfunction [06/2017 - 10/2020]: Description

The master cylinder pressure sensor is connected to the skid control ECU in the brake actuator assembly.

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DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1246	Master Cylinder Pressure Sensor Malfunction	Any of the following is detected: The voltage of the sensor signal is out of range (below 0.129 V, above 3.29 V). An abnormality is detected in the skid control ECU internal sensor test. The sensor signal offset value is out of range.	Stop light switch assembly circuit Master cylinder pressure sensor circuit Master cylinder pressure sensor (brake actuator assembly)

DTC DETECTION CONDITIONS: C1246

		Vehicle Condition
		Pattern 1	Pattern 2	Pattern 3
Diagnosis Condition	-	-	-	-
Malfunction Status	The voltage of the sensor signal is out of range (below 0.129 V, above 3.29 V).	◦	-	-
	An abnormality is detected in the skid control ECU internal sensor test.	-	◦	-
	The sensor signal offset value is out of range.	-	-	◦
Detection Time		-	-	-
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.