P04020 and airbag

[Rubregis42]

Hi all for some reason my airbag light has come on the dashboard any ideas? Also sometimes the engine management light comes on so i plug the reader in which shows po4020 which is to do with the catalics so ive tried some cleaner which sometimes cleans it forso long then the lights back on any ideas? The car is a 06 1.6 petrol estate cheers

[Steve Q]

Common airbag warning light issues are caused by a loose wire under the passenger front seat. 

Regarding the other fault code, it could be a lambda sensor. 

[Rubregis42]

Cheers steve i checked the drivers seat not the passengers 😆 lol 

[Steve Q]

2 hours ago, Rubregis42 said:

Cheers steve i checked the drivers seat not the passengers 😆 lol 

No probs. Ironically its more likely to be the passenger seat.