how to open a saab 93 without a key to Replace a saab 93 replacement key saab key Fob
Dealers may charge hundreds of dollars for a saab replacement key programming fob that isn't functioning properly. You can repair it yourself and save money.
You'll require a small screwdriver to break the case open and get into the electronics inside. A multimeter is also required to test the battery.
Battery
Most replacement key for saab 93 fobs will activate whenever you press a button, for example, to unlock or lock the car (or to start it if you have keyless ignition). The reason is that they're equipped with an internal battery that sends an indication to the car to let it know you're close enough to press the starter button. If the fob starts to behave in a non-conform way, it's possible that the battery has worn out and needs to be replaced.
This is a fairly easy procedure, but you'll have to be cautious not to damage the electronics in the fob.