Air bag and cruise control

Hi I have a Series II discovery V8 with faulty cruise control and I want to take off the steering wheel to look at the switches to see if there is a problem, does anyone know if I disconect the airbag will I need to get the airbag reset by a landrover dealer when its refitted afterwards

IMPORTANT >Remove the key and Disconnect both battery leads (negative first) 10 minutes before u start to work there and make some kind of sign as to put back the rotary coupler exactly as it was before. ... that's all .... aaaaa and when u are done reconect earth first