Been away for awhile so I dont know if this has been addressed yet, but looking in my service manual (page 17-69):

1) remove seat, unplug black and grey 4-pin connectors
2) swap plugs, grey to black and black to grey
3) turn on ignition switch, belt light should be flashing quickly
4) disconnect 2-pin belt switch above torque converter cover, belt light should be flashing slowly
5) let flash for at least 5 seconds
6) turn off ignition switch
7) reconnect 4-pin connectors black to black and grey to grey, reconnect 2-pin belt switch
8) turn on ignition switch to confirm belt light is out

I havent tried it yet but I'm almost due.

 

Thanks