I have a 2003 Mondeo 2.5 V6 so the pre-facelift version. I recently put some facelift (2005) seats/carpet/doorcards etc in as I liked the look due to being half leather and black as mine was all cream leather. Since putting the facelift interior in my airbag light flashes 5 times then stops, then once, then stops then five times then once.....I found out this is called 'Error 51' so found on Ford Wiki this.......

DTC B2691: Driver safety belt buckle switch open circuit or short to battery. Lamp flash code: 51
Possible Source(s):

Driver safety belt buckle switch.
Circuit(s).

DTC B2435: Driver safety belt buckle switch resistance out of range. Lamp flash code: 51
Possible Source(s):

Driver safety belt buckle switch.
Circuit(s).


I have looked everywhere on the drivers seat to the sides, underneath etc and cant find any 'Drivers safety belt buckle switch' Can anyone help please?

Thanks in advance.