Initial scanning with a Hella Gutmann mega macs S 20 retrieved trouble code B2000500 in the left light control module, indicating uncommissioned control unit software and missing data records.
While low beam functioned normally, the passenger daytime running light and indicator remained completely offline because the replacement unit had not undergone proper adaptation.
Connecting dealer-level ODIS software, the technician executed module commissioning with battery support connected, successfully restoring both the DRL and indicator functions.
The car was then taken to a local MOT bay for manual headlamp alignment on level ground to clear the remaining dynamic lighting errors and finalise the repair.
