Airbag Issues

[Helihover]

Having never had problems like this before, I have a few questions about a locals e53. The airbag light came on about 3 weeks ago. About 8 months ago he disconnected the driver side door airbag with the battery connected and said the light never came on at that point.....

INPA shows these three faults.


And when I try to clear them, I get this.


From this I believe the module could be bad, but not sure enough to dig right in and replace. What do you guys think? I told him to check the connections ect., ect. , but he sounded as if he wanted me to go forward with this. He thinks the module is under the center consol which, his 28 year old daughter just recently spilled two cups of water on

Any ways where is the module? Would coding be necessary on a replacement? Thoughts? Opinions?

Thanks guys. 2001 3.0 auto