Long story short I bought a corsa c 1.4 Sri ,it had a zlet engine in it but it was never finished, I've done all the wiring on it but now when I take the key out the ignition the airbag light stays on faintly and is draining the battery , when I stick the key in and turn it to start it the airbag light lights up fully then goes out like it's meant to , I've code read it and it's not coming up with anything , checked the connection to back of clocks and it's all good, unplugged the airbag modual and it made no difference just the light never when out with the ignition turned on,only other problem with the car is the horn does not work , when you press the buttons you can hear the relay clicking k the fuse is ok and the horn works as I've put 12 v to it so was wondering if the 2 problems were linked