Airbag error Passenger seat code B1650

[Dugmahn]

Code B1650
Greetings from a new club member.  I just purchased a 2007 ES350 in really great shape, except for the passenger side airbag/ SRS light which indicates an error.  OBD says only one code: “B1650” which means an “occupant Classification system malfunction”.  I tried to erase the code several times with the scanner, and each time the error light instantly returned, so there is an obvious problem.  It would be nice to avoid the stealership and fix it myself.  Has anyone had success in fixing this problem, or have any tips to figure this out?  Thank you in advance, and have a nice Memorial day weekend.

[Dugmahn]

So when the passenger seat is occupied, the light does not revert to "airbag on" .  I pulled the front passenger seat and underneath the seat is a computer which says "Computer Occupant Detection".  part no 89952-0w010...has anyone experienced a failure of this piece?