DTC C1231-31: Steering Angle Sensor Circuit Malfunction [06/2015 - ]: Description

The skid control ECU (brake booster with master cylinder assembly) receives steering sensor signals via CAN communication. When a malfunction occurs in the communication line with the steering sensor DTC U0126/63 (Lost Communication with Steering Angle Sensor Module) is stored.

DTC No.	Detection Item	INF Code	DTC Detection Condition	Trouble Area	Note
C1231/31	Steering Angle Sensor Circuit Malfunction	701 702 703	INF Code: 701 While steering angle sensor communication is enabled, a malfunction signal output is received during the sensor self-check (sensor malfunction). INF Code: 702 While steering angle sensor communication is enabled, a malfunction signal output is received during the sensor self-check (internal malfunction). INF Code: 703 While steering angle sensor communication is enabled, a malfunction signal output is received during the sensor self-check (+B malfunction).	Steering sensor internal malfunction	VSC DTC