Airbag code 37

This sounds like a short in the ground!
Check wires!

Here are two methods on resetting the light:
Method 1: Simply remove the negative battery terminal, and hold the brake pedal in for at least 30 seconds. (NOTE: The SOLE purpose of holding the brake pedal in is to drain any residual power from the electrical system, allowing the computer to reset itself). Then, reattach the negative battery terminal.

Method 2: Remove your center console (the trim piece around the shift knob). The ECU is located directly underneath/behind the radio and ashtray underneath this trim piece. This does not require any tools (on most models) since the piece just pops up. Then, simply unplug ALL of the wiring harnesses that plug into the ECU (it is a gray metal box with a yellow plastic connector on it) and leave it unplugged for a few minutes. Then, simply plug them back in.

hope this helps you.

tom

Here's a site that will explain everything you need to know about airbag lights and resetting the system.
http://www.airbagsolutions.com/
This website gives you the procedure for diagnosing and resetting airbag lights. See if your car is listed here.
http://www.airbagsolutions.com/vehicles_list.aspx
On most vehicles, the airbag light should come on for @6 seconds, and then go off if the system is working properly. If there is a fault or a problem in the system, the light will remain illuminated, or flash continuously. If the airbag light does not work properly, some vehicles have an audible tone that sounds indicating a problem with the airbag light system. When the light is on (or the tone is sounding), the airbag will NOT deploy, even in an accident.
The flashing light on your car is telling the answer you need. On some vehicles, the light is flashing a two digit code. Once you know the code, you can most likely repair it yourself. There are fairly easy procedures that most people are capable of repairing.
Airbagsolutions.com has the fault code charts to tell you what is wrong and how to fix it! 

Some vehicle manufacturers accommodate systems without a scanner (like Toyota, Lexus, Nissan, Infinity, Honda, Acura, Ford, Lincoln, Mazda & Mercury) and some require a scan tool.
Check out these websites also for more info on airbag systems and the light.
http://blog.airbagsolutions.com/archive/2007/11/18/why-is-my-airbag-light-on.what-should-i-do.aspx
http://www.airbagsolutions.com/resources.aspx
http://blog.airbagsolutions.com/
Also, you may want to check out this site for information on researching your own vehicle for factory recalls!!!
http://www.airbagsolutions.com/nhtsa.aspx 

LFC 3-7 is for an improper voltage level in the sideairbag on the passenger side of your Explorer. This could be caused bya short to ground or, more likely, a high resistance connection betweenthe Restraints Control Module and the PS side airbag assembly.

Even if your truckdoesn't have the optional side airbags, it still has the wiring forthem and uses a yellow resistor cap to simulate the side airbag. Samestory - probably a poor connection at the RCM or at the resistor capunder the passenger seat.

This is usually caused by high resistance or poor connection at the pass side airbag connector. Try disconnecting and reconnecting the airbag. It is a yellow connector under the pass seat.

LFC 3-7 is for an improper voltage level in the side airbag on the passenger side of your Explorer. This could be caused by a short to ground or, more likely, a high resistance connection between the Restraints Control Module and the passenger side airbag assembly.
If you need further assistance let me know. Please take a moment to accept and rate my solution accordingly.
Thank you,
Lee