The airbag control unit is located under the front section of the central floor tunnel.
Remove the front part of the floor tunnel (see here).

Pull back the carpet.

Using a 10 mm wrench (head), unscrew the three block mounting bolts.

Turn the unit over and use a screwdriver to press the latch...

... and then turn the connector locking bracket.

and disconnect the wiring connector from the block.

Remove the entire airbag control unit.

Installation is carried out in reverse order.
