On Board Diagnostic, functions

HID headlamp and automatic vertical headlamp beam adjusting system have On Board Diagnostic (OBD) capability. If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory.

Troubleshoot headlamp system malfunctions by performing OBD program using Vehicle Diagnosis, Testing and Information System VAS 5051/5052 in operating mode "Guided Fault Finding".