Component Tests and General Diagnostics

Troubleshooting On The Litronic Headlight

WARNING: Warning signs (yellow triangle with black high-voltage arrow) indicate high voltage (risk of fatal injury).
- The light must always be switched off when removing and installing these components (control module, ignition unit, gas discharge lamp, servo motor). Once removed, a headlight is not under high voltage.
- The gas discharge lamp (D2S lamp) may only be operated when installed in the reflector and with the headlight installed.


NOTE: When the dipped beam is faulty, the individual components (gas discharge lamp, ignition unit, control module) of the second headlight can be exchanged. Only the battery voltage, with the headlight removed, can be checked in the wing at the plug connection, at pin 9 = 56 b and pin 4 = 31 according to the circuit diagram. The gas discharge lamp may only be operated when installed in the reflector and with the headlight installed.