360 "reverse" lights not working, remove gearbox to fix!?!

Was at the service today for a small check up before 2nd track-day of the year at saturday, istanbul park, yeey.

Noticed that my reverse lights are not working, both of them.
They checked the bulbs, working, the fuses, working. (Why Ferrari used nearly 100 screws to bold the 3 fuse covers, i did not understand, but there is one on the boot and one behind each seat.
If interested, the reverse gear lights fuse is behind the drivers seat, you can reach it after unscrewing 20 screws!!)

Anyway, they assume that the problem is probably because of the "switch" under Reverse position of the gear lever (surely manual) that triggers the light when you put in reverse, is broken/faulty..
I wander if any of you guys have had the same problem, any idea about that "switch" thing or another possible cause.

By the way, they have mentioned that you can reach that "switch" by just remowing the shifter gate on maranellos (550-575), however in 360s they have to, maybe, remove the gearbox!!!.
That seemed alittle suspicious to me that they needed to remove the gearbox for just a little light fix.
I'll go to service after the trackday again for possible brake pad change and if thats the case with the R light, i think i'll wait till i need a new clutch or something, wouldnt you agree..?

cheers..

 

Thanks guys.
Yes its a manual, and i think they ment center housing (that gray thing) when they said that they have to remove the gearbox..