General Information

Head Lamp

Automatic Headlamp Leveling System - C1522 Head Lamp Light Signal Line Open - 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. ECM detects the signal of headlamp switch which is operated by multi-function switch to diagnose the Headlamp light signal line.

DTC Description

The ECM sets DTC C1522 if there is open circuit (when a not allowed voltage, from 2 V to 6 V, is detected at light signal input for a duration of 2 seconds) in light signal line.

DTC Detecting Condition





Schematic Diagram