Another warning light question

[Chris and Alana]

Hi guys, I fitted new dials today and noticed the buld housing for the warning light was gone so I stole the one from the petrol low indicator and when I put everything back together the warning light is constantly on. Iv had a search and some usful stuff but does anyone know what it could be. It did have a active spoiler but not anymore as it has a top secret front but I disconnected the switch, would that be enough or do I have to disconnect the wiring from the active spoiler ECU? The air bag light is always on aswell, could this also be a cause? Iv lived with the air bag light since I bought it because it didnt bother me. There are no other lights that come on with the warning light apart from that.