The Steering angle sensor(SAS) is installed in MDPS assembly.
The SAS is used to determine turning direction and speed of the steering wheel.
The HECU uses the signals from the SAS when performing ESP-related calculations.
The HECU checks the CAN communcation lines for normal control and if a steering anlge sensor's message is not received for a certain period, this DTC is set.
Item
Detecting Condition
Possible cause
DTC Strategy
CAN message monitoring
Faulty Steering Angle Sensor(SAS)
Open or short in CAN communication line
Enable Conditions
When the steering anlge sensor's messages are not received for more than 0.5 second with a normal voltage condition
Fail Safe
Inhibit the ESP/DBC control and allow the ABS/EBD control.
The ESP/DBC warning lamp is activated.