Thank you fir your feedback. Problem now solved, changing the battery had for some reason turned off the passenger airbag, as it turns out indicated by the orange light. Unfortunatly the Ghibli manual does not detail how to turn this back on. Anyway messing around I found out the aibags can be engaged and disengaged though the vehicle settings menu displayed on the instrument panel, obviously its too much trouble for Maserati to make this information clear in their manual. I use a Foxwell 530 multi system scanner which works fine and in this instance found no fault cos the passenger airbag was turned off, so all good.