just removed the entire dash to clean the evaporator ran and checked everything with the dash removed alls good now its all back together engine wont start im suspecting ive bumped the inertia switch but dont know where its located on a my2011 2.3 a few heads up would be appreciated thanks in advance Adam

On the bulkhead of the UK passenger footwell. LHD model shown
http://www.manualslib.com/manual/803246/Fiat-Ducato.html?page=69

Well done Ray nice to have a reminder