i don't suggest u DIY
The clock spring is just a connector to the airbag. The wiring is coiled up (about 6 feet or so) that allows you to rotate the steering wheel from all the way left to all the way right. If you open up the unit, the coil will jump out at you, and putting it back in is a nuisance. More important, you have to find the 'midpoint' again, otherwise you'll either create too much slack, or tension when rotating the steering wheel. To prevent this rotation from occuring, the tensioner spring (silver left in first pic), will keep the coil centered when removed from the steering shaft (The steering wheel pushes against this spring, allowing free rotation of the coil).
Besides, you only have to take this unit on or off, to get to the stalk unit below it. This is the one that may be mounted incorrectly (second pic below). You can move this up and down on the steering column. That's where I think the problem lies.
your air bag unit maybe fine, just the connection is bad.
ask the tech. if they can test the air bag unit so you can avoid buying a new air bag.
again, i don't recommand DYI this, it's not fun to have an air bag blown in your face.
good luck.