My '98 F has had this problem for years now. It usually comes on just before MOT is due.
My fix is:- remove air bag (just 2 Torx bolts), disconnect the connector and a squirt of electrical contact cleaner.
Lasts nearly a year.
My fix is:- remove air bag (just 2 Torx bolts), disconnect the connector and a squirt of electrical contact cleaner.
Lasts nearly a year.