It will work out cheaper to get a mechanic who has diagnostic equiptment to accurately pin point the problem.It does`nt have to be a main dealer(too expensive) there is a good mechanic in every area who has cheap hand held equiptment that will accurately diagnose the problem and eliminate costly trial and error changing of components.it could be a faulty sensor or something like that.it could also be a fault in the restraint system(seatbelts & the restraints they clip in to)
unfortunately a diagnostic unit is the best option.Get a reliable local mechanic to do it on his/her own time and it will save you money.
Mike07
October 2007