its a common prob... I dont know why this works, but try to disconnect the yellow wireconnections under the front seats, then connect them again, and now it stops. I found this solution on a homepage for british mondeo lovers (!) - i dont know why it works but it did for me...
fix the airbag.
ford mondeo 1999 model indicators keep flashing &battery flattens
No. Take it to the dealer and have it repaired. If you are in an accident, the air bag might not deploy.
By having it repaired by a qualified technician. It is flashing because something is wrong with the SRS. Do not ignore this and do not attempt to repair yourself. Serious injury can occur when working with the SRS.
why is subaru forester 1998 hold light flashing
When there is an issue with a vehicles airbag, the airbag light comes on. In order to reset it, the problem must be taken care of, and reset by a computer.
where is a fuse for the car horn on a 1998 mondeo
There are several reasons the airbag light will stay on, in your 1998 Dodge avenger. The most common reason is the airbag sensor is not functioning properly.
There is not much chance that your airbag would malfunction and just deploy, but if the airbag light is on there is a 100% chance that it will not operate properly in the event of an accident. You need to have the car inspected at a dealer or certified repair shop if the airbag light is on and remains on.
check your fuses
Which Yellow light, what does the symbol look like
By having whatever has triggered the light repaired. A job for a professional.