DTC C1231: Steering Angle Sensor Circuit [10/2020 - 10/2023]: Description

The skid control ECU assembly receives steering sensor signals via CAN communication. When a communication malfunction between the skid control ECU and steering sensor occurs, DTC U0126 (Lost Communication with Steering Sensor Module) is stored.

DTC No.	Detection Item	INF Code	DTC Detection Condition	Trouble Area	MIL	Note
C1231	Steering Angle Sensor Circuit	341 342 344	INF Code: 341 While steering sensor communication is enabled, a malfunction signal output is received during the sensor self-check (stuck malfunction). INF Code: 342 When sensor malfunction excluding steering sensor +B malfunction occurs. INF Code: 344 While steering sensor communication is enabled, a malfunction signal output is received during the sensor self-diagnosis (internal malfunction). When steering sensor malfunction +B occurs.	INF Code: 341 Steering sensor power supply Steering sensor INF Code: 342, 344 Steering sensor	Does not come on	-

DTC DETECTION CONDITIONS: C1231 INF CODE: 344

		Vehicle Condition
		Pattern 1	Pattern 2
Diagnosis Condition	Steering sensor communication data available stat	◦	-
Malfunction Status	A sensor malfunction signal is received (internal malfunction detected via sensor self-diagnosis)	◦	-
Malfunction Status	When a steering sensor +B malfunction occurs	-	◦
Detection Time		-	-
Number of Trips		1 trip	1 trip