Another Key FOB question.....

[Rob175]

In my case I have two original (two button) key FOBs for my 98 Boxster. They both have worked very well but both needed to be very close to the car in order to unlock the doors or rear trunk. Often with me standing about 2 ft away from the car.

However, beginning yesterday, BOTH key FOBs aren't locking or unlocking the doors or rear trunk when pressing the buttons on the FOB.. Both have new Duracell batteries in the correct position and BOTH tiny red lights light and flash EXACTLY the same as they have for years.

In other words, both stopped working on the same day.....so my assumption is that the issue is NOT either keys or batteries. That leaves me to believe it MIGHT be the "immobilizer".

Is there a way to tell without pulling the seat and removing the unit?? Could it be a FUSE?, main car battery that's only 3 yrs old. (The car is never in the rain and is always garage kept and never washed just polished and dusted).

Any thoughts?
btw...the door lock button on the dash works fine and the car starts and runs excellent with both key FOBs.