Lads, any of you every come across this?

An intermittent faily, that will only appear when I turn on the full headlights (never turns up when lights are off or only the dims are on).

Generally what happens is that I turn on the headlights, and I notice the passenger side Xenon flicking on and off 3 times before the error pings on the dash. The Xenon will turn on normally first, and then turn off for about 3 seconds, on for about 3 second’s, off, on, off, on and then will stay on. Once the light turns on for the third time, the error will ping on the dash but all lights will continue to work okay from then on until the lights are turned off. The '!' error always remains present on the dash.

Ignitor? LCM? Control Unit?