General Information

Automatic Headlamp Leveling System
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 ECM, 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 ECM 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