General Information

Auto Headlamp Leveling
C2226 Output Voltage Short to Battery or Short to Ground - 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. AHLS ECU ouputs the singal based on the driving and loading condition and delivers it to actuator, and then the actuator changes vertical direction of the headlamp.

DTC Description

AHLS ECU sets DTC C2226 If AHLS ECU detects Signal circuit of Actuator is short to ground or battery.

DTC Detecting Condition





Diagnostic Circuit Diagram