blue box???

[staggie]

can anyone tell me what the blue box is behind the ac controls on my 91 5.0 is

 

[PUNISHER RACING]

is it ticking..... don't touch it!

 

[staggie]

yes it ticks fast when the air bag light flashes. what is it

 

[PUNISHER RACING]

the air bag control module runs the sensors under the hood on rad support

 

[CU racing]

probably the air bag computer

 

[Shakerhood]

The Airbag Diagnostic Monitor.