General Information

Auto Headlamp Leveling
C1255 Rear Height Sensor - 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 AHLS ECU sets DTC C1255 if the useable range of ±45° is overridden caused by separation of actuator clamping bolt or lifting of vehicle.

DTC Detecting Condition





Diagnostic Circuit Diagram