Ok friends mondeo 2001 tddi airbag problems

dash flash code 25 was showing....

so got the trusty formidable out and

code reader come up with :

B2294 Restraint System - Curtain Fault 5963 5956 *

*fault as above found and cleared*

Checked both rear airbag curtain connections and immediate wiring and wiring in the centre console airbag control unit, rechecked D.T.C found rear wiper jet did not work but has not done for a year, airbag fault has been a month, so checked water hose to rear jet the elbow section was not connected so maybe some water was present a year ago when last used but air bag fault only come up a month ago... code reader is saying passenger rear air bag curtain and water jet elbow is drivers side so checked both anyway....

*fault above still present cleared once more and reappeared instantly now baffeled am stuck so many people have said airbags that are non deployed dont go wrong...???

Any help please before some crooked garage looks at it as M.O.T time soon...

Any ideas............?

please...