Air bag light on

My air bag light has come on 2002 1.8
Amber light on plus red flashing light sequence appears to be 4-8
Can anyone advise as to how to rectify the problem please

I found this []

But it doesn’t mention 4-8 for a 2002 model.

Whilst I can’t say for certain that this is your problem, the underseat connectors would be my first port of call. (if a 2002 has seat airbags of course)

Disconnect the battery on both terminals, short those terminals to dischange everything, disconnect the undeseat connecters, spray with electrical terminal cleaner, and refit.