How can I reset the computer sensor module to turn off my many lights?

These lights stay on check engine, airbag light, awd auto and lock light. I had a recall
on my passenger seat because of the airbag light. Shortly after my airbag light came
on for the driver side then check engine light. This winter I slid into a snow back but no
damage. Days later the awd(both) came on. The closest auto dealership is 2hrs away.
The estimate I received to fix it was over 5000.00. This was basically putting all new
sensor modules in instead of resetting the computer. This dealership claimed they
didn't know anything about resetting the computer module. Just wanted alot of money.
Is it true I can take the neg. and pos. off the battery, touch them together for 10
seconds reconnect to battery and my lights will go off? It was on your forum.