Component Location
General Description

The Steering angle sensor(SAS) is joined to the multi function switch and uses a CAN communication.

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.

DTC Description

The SAS used for ESC control needs zero point adjustment because the SAS measures a absolute angle.

Zero point adjustment is done by using the scantool device. If abnormal zero point adjustment is detected, a failure is reconized.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

● Signal Monitoring

● A fail of SAS zero point adjustment

● Faulty HECU

Monitoring Period

● During SAS zero point adjustment.

Enable Conditions

● The position of steering wheel is out of specified range (straight positon, a max. error ±5˚) during SAS zero point adjustment.

Fail Safe

● Reduced controller function caused by faulty SAS signal. Allow the ABS/EBD control.

● The ESP warning lamp is activated.

Schematic Diagram
note
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