2001 nissan airbag problem?

on vehicles, airbag light should come on @6 seconds, , go off if system working properly. if there fault or problem in system, light remain illuminated, or flash continuously. if airbag light not work properly, vehicles have audible tone sounds indicating problem airbag light system. when light on (or tone sounding), airbag not deploy, in accident. website gives procedure diagnosing , resetting airbag lights on ...scanlist.aspx page listed below.

flashing light on car telling there problem. on vehicles, light flashing 2 digit code. vehicle require scan tool proper diagnosis, (and not scanner @ auto zone…airbag systems cannot ready scanner) here's site explain need know airbag lights , resetting system. once know code, can repair yourself. there easy procedures people capable of repairing.
airbagsolutions.com has fault code charts tell wrong! although it’s pay site ($14.95/day), it’s lot cheaper going dealer.

vehicle manufacturers accommodate systems without scanner (like toyota, lexus, nissan, infinity, honda, acura, ford, lincoln, mazda & mercury) . other vehicles require scan tool diagnosis. here link list of vehicle , scanner requirements.
check out these websites more info on airbag systems , light.
lastly, check vehicle recalls through link.

i found out code airbag light. code 21. own 2001 nissan maxima , cant seem find anywhere online list of codes tell me is. can tell me wrong? appreciated. thnx in advance

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