Originally posted by MBelitetech
The light malfunction system looks at a total wattage of the system and if it there are any deviations it throws the light on. So just replace the new bulb with a new 12W 12V bulb and you should be good to go. [/B]
I found this out the hard way.
Replacing with original bulb did the trick.
(But only momentarily as somewhere an earth wire needed grounding.)