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Just noticed that the air bag module was unplugged. So I plugged it back in and now it beeps 5 times in a row waits a second and beeps another 5 times in a row. It does the series of 5 beeps and 1 second pausing intervals 5 times. I noticed the bulb didn't light up so I replaced it and now its on all the time. No flashes just solid on and the air bag module is still beeping. This is on a 96 gt no accidents.

Well I fixed it. In case someone ever has this problem and searches, like I tried and failed to do, I will explain what happened. I discovered while doing stereo wiring that the airbag module under the stereo was unplugged. I also noticed that the plastic surrounding the pins on the airbag module was broken off on top. I plugged the airbag module back in and started the car. After a few seconds of being on the module started beeping 5 times pause another 5 beeps etc a total of 5 times for 25 beeps total. I search online and found out that 5 beep pattern meant the airbag light was burned out. I pulled the gauge cluster and found that the bulb was in fact burned out. I put a new bulb back in and started the car again. This time the airbag light was on steady and the module was beeping still. This seemed strange since the bulb was working now. I tried getting codes but could not and I also tried clearing the module memory also without success. So I tried a known good module and the problem went away. I noticed that the new module had two plastic prongs on each plug socket and that on the old one they were broken off. This was the problem. The two airbag module plugs have "shorting bars" that turn on the air bag light of the plugs are unplugged. So even though I had the plugs plugged in and a good bulb because of the shorting bars it appeared as though I had a bad bulb. I think what happened originally is that a previous owner had the module start beeping, didn't know that it was due to a burned out bulb, and yanked the module plugs out to silence it and damaged the plastic around the plugs in the process. Total cost for repair was $25 for a used module off of craigslist. FYI 96-98 mustang modules are swappable regardless of trim or engine, I don't know what the compatablility of the newer or older mustang modules is.

and what air bag module is this for?

The airbag module controls the deployment of the airbags during a crash. IT does self checks when turned on and if a fault occurs it lets you know by flashing the airbag light. If it isn't working correctly the airbags won't deploy during an accident potentially increasing injury or causing death. It is a light blue box underneath the stereo towards the firewall and is held in place by 3 8mm green screws.

Oh I was just asking what AirBar since there is more than one. Nevermind. haha