Airbag light on in my megane II

I was just wondering if anyone could point me in the right direction with my megane 2 on a 54 plate. The airbag warning light is staying on and i think the problem is the squib but before i change that i want to do some further test. The diagnostic kit points the problem towards the drivers seat cct's. What i would like to do is test the resistances of the seat belt pretensioners and the resistance of the seat position sensor and was wondering are there any easily accessible test points. I have checked the connectors and they seem fine. Cheers in advance Alan.

Be very very careful....messing with a meter on airbag circuits could possibly set them off...

Yep your right there Greg but the cct's will be deactivated first, battery disconnected left for 30 mins or so and then steering wheel airbag will be removed. Unfortuately the Bosch KTS200 that i can use does not have the function to test the resistance of those cct's according to Bosch.