bit of a queery here for anyone who tows trailers,noticed today that when my trailer is connected to the RR,the led lights flash every 10 sec or so,disconnected it and pluged in the tester all the nlights on it blinked every 10 sec or so as well,totaly new to me,never encountered this before,even flashing when switched off!
L322 2005 td6
- Thread starter omlette
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IMO it's the bulb test feature, the LCM sends out a test pulse to each bulb. Ok on filament bulbs but makes LEDs flash.
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