XC60 MY14 Active High Beam problem

[baconrasher]

My MY14 XC60 developed a fault with the Active High Beam a couple of months ago. I brought it up at the service (around a month ago) - I occasionally also got a fault for the ABL. They replaced the light controller, but the Active High beam Fault remained.

The fault is that the left-hand light isn't active - the right hand one works as normal, and the dashboard light acts normally. For example, following a car the blue light is on, with a high beam to the right (but not left) of the car. If a car comes the other way the right hand beam drops to dip, blue light remains on, but of course the left hand beam never stopped being dipped so effectively all lights are dipped (but the blue light is on - so the system thinks that the left-hand beam is active).

I dropped it into the dealer (MRG in Chippenham) a few days after the service and they said no fault found. It went in again on Monday for another go - still no fault found. Talking to the technician, it is clear that he has never been in a car with the system and has no idea how it is supposed to work!

Has anybody else had a similar problem - if so how was it fixed? My guess is that the shutter on the bi-xenon is a stepper motor, with no feedback to the controlling computer (hence no fault code) and that a new headlamp unit is required to fix. Ideas?

Bacon

[UKDave]

I'd check the canbus connection to the light. I assume all the cameras are OK?

[baconrasher]

Canbus is a good idea - although you would have thought it would come up with a fault code if it is faulty. Cameras - not sure how you would know - everything else works OK.

Thanks for the suggestions

Bacon