DTC Description

This monitoring function monitors the changing point of N-signal with measured steering angle from ST1 and ST2. If N-signal changing point differs more than 4degree, the failure is detected.

This monitoring function is prepared for the possibility of temporary SWAS (steering wheel angle sensor) signal defect caused by the power-supply or external environments. Because SWAS signal is not guaranteed for all situations that ESC-ECU working is guaranteed.

A failure is set if unplausible steering wheel angle sensor signal is detected.