General Information

4WD Control

P1719 Steering Wheel Angle Sensor N-Input Signal - General Information

Component Location





General Description

Steering Wheel Angle Sensor installed in steering wheel prevents a state of TCB (Tight Corner Braking) by sensing the rotating direction & straight driving of vehicle and is used for EMC duty control. In case of ESP system applied, 4WD ECM (= TCCU : Transfer Case Control Unit) receives this signal through CAN line. If it is not the case, 4WD ECM receives this signal from Steering Wheel Angle Sensor directly.
** TCB (Tight Corner Braking) : TCB is that the vehicle makes an abnormal noise and hesitation when the vehicle turns left / right fully with low speed at a paved road.

DTC Description

This code related to Steering Angle Sensor Signal (#N) is set when voltage of signal is above 4.5 V or loss of signal is occurred for more than 1 sec. In case of ESP system applied, this code is set when can bus off or ecu internal error is occurred.
If failure is detected 4WD ECM (= TCCU : Transfer Case Control Unit) prohibits the ITM control and cuts the current to control coil.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig.1) Steering Wheel Angle Sensor #1, #2