General Information

AFLS(LED)
B2401 Levelling motor fault right - General Information

Component Location





General Description

LIN (Local Interconnect Network) is direct communication system to low-cost for electric system of vehicle. height sensor signal, vehicle speed, steering angle sensor signal are input to AFLS ECU to find out of headlamp position and AFLS ECU drive actuators through LIN communication. AFLS(Adaptive Front-Lighting System) drive Leveling Actuator-Intelligent Stepper Motor for adjusting up and down, and Swivel Actuator for adjusting right and left side.

DTC Description

AFLS ECU set this code If mechanically faulty in ISM of right side headlamp.

DTC Detecting Condition





Diagnostic Circuit Diagram





Monitor GDS Data

1. Connect GDS to data link connector(DLC).
2. Engine "ON".
3. Monitor the "Main function activation status, HLL position, DBL position" parameter on the GDS.
4. Check the operation of "HLL position and DBL position" use Actuation test.








Fig.1) Actuation Test - DBL RIGHT POSTION
Fig.2) Actuation Test - DBL LEFT POSTION
5. Is parameter displayed within specifications?