Auto Airbag System Repair: air bag module, nissan infinity, honda acura

Question
where is the air bag module located on a 1998 ford ranger

Answer
Hi Ken:
Here's a site that will explain everything you need to know about airbag systems, airbag lights and resetting the system.  It shows you the location of the components and the procedure for diagnosing and/or resetting airbag lights.  Not all vehicles need everything replaced.
You can check to see if your car is listed here.
http://www.airbagsolutions.com/

Airbagsolutions.com also has the fault code charts to tell you what is wrong and how to fix it!
Some vehicle manufacturers let you access and reset systems without a scanner (like Toyota, Lexus, Nissan, Infinity, Honda, Acura, Ford, Lincoln, Mazda & Mercury) and some require a scan tool.  
Although it’s a pay site ($14.95/day), it’s a lot cheaper than going to the dealer

Here's the page in this site that tells you which cars need a scan tool and which ones can be done without
I hope I’ve helped you
http://www.airbagsolutions.com/scanlist.aspx
http://www.airbagsolutions.com/light.aspx
http://www.airbagsolutions.com/vehicles_list.aspx