General Information

Power Steering
C1259 Steering Angle Sensor - Electrical Malfunction - General Information

Component Location





General Description

EPS (MDPS=Motor Driving Power Steering) is designed to provide directional control and smooth feeling to driver when driver operates steering wheel. There is a function to detect rotation speed and direction of steering wheel in Torque Sensor. Rotation speed and direction signals are used for "damper" and "return" control, "assist" control.

DTC Description

Steering angle sensor error can be set when loss of steering angle due to internal fault or open in ECU internal circuit occurs. If steering sensor error occurs EPS CM(Control Module) stops "damper" and "return" control. Therefore driver can be uncomfortable due to no return force during U-Turn, high speed driving, but there is no problem for driving because basic assist control still alives.

DTC Detecting Condition