[ewill3rd]

Getting to the SDM is not an issue, however getting there won't reveal anything.
You need to retrieve the codes to determine the cause of the light.
I have rarely seen an airbag component that was bad that showed a visible sign of being bad.
The SDM is a small silver box with a connector on it, looking at it will tell you nothing.

To remove the console you simply need to remove the shifter trimplate, then the 6 screws holding the console to the floor.
There are 4 in the back accessed by removing the plugs and two in the front that you pull the carpet away from the console to get to.
From there you lift up, and undo the connectors at the front or just prop it up and the SDM is right there at the back.

Be sure to follow safety and handling precautions as outlined in the FSM.
Again, without knowing the codes this is a genuine waste of time.