General Information

Auto Headlamp Leveling
C1381 Sensor Internal Error - General Information

Component Location





General Description

AHLS provides driver with the best visibility by adjusting vertical direction of the headlamp. It consists of AHLS ECU, Linkage and actuator. The height sensor measures the angular displacement of lever by measuring the magnetic field of stator parts formed by rotation of rotor.

DTC Description

The Hall sensor transfers to the MCU an angle of present sensor in the AHLS system.If there are communication error or wrong signals, it sets the DTC C1381.

DTC Detecting Condition





Diagnostic Circuit Diagram