Hyundai Sonata: Steering Angle Sensor. Description and Operation
Description
The Steering Angle Sensor (SAS) is installed in EPS (Electric Power Steering)
and it sends messages to HECU through CAN communication line.
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.
Components (Steering Angle Sensor, Torque Sensor, Failsafe relay, etc.)
of the EPS system are located inside the steering column & EPS unit assembly
and the steering column & EPS unit assembly must not be disassemble to inspect
or replace them. (Refer to “ST (Steering system) Gr.”)