Airbag light still on after removing and reinstalling airbag

[3gan]

I believe my airbag on and off switch is faulty
even tho I bought one from eBay it still gives the same error codes
can I ask your views please
if I run test through the switches with my multi check the light illuminates whether the switches are on or off
do you know if the switch should not give the same result if in the off position?
many thanks
lee
the guy with the air bag problem :-(

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my fault codes were
p1862
of the passengers airbag deactivation not defined
and
p106f
passenger airbag deactivation undefined