Trying to help a good lad in work.
He's bought one of these,1.6 coupe/hatch sort of thing,pretty car but pretty crab build.
Now he's had these issues for a while.
It started with the airbag light coming on for no reason.
Then a few weeks later the interior light would not switch off,no matter what,on while driving etc,apparently it comes on with the alarm then fades when the key goes into position 1/2 I think?
He said the latest thing is the hazards are staying on when he sets the alarm.

It's been to Vauxhall where their response was its a duff ecu,one of two.they ordered a new one at £600 (ouch!!!) but the wrong one was sent.they plugged his old one back in cos he needed the car back and the faults cleared.
This worked for a week then it reared it's ugly head again.
He's been back and they've told him it maybe the "other" ECU (I'm guessing body control) and they'll need to order it,reprogramme it but if it doesn't work there's no refund,I think it's £800 odd quid!!!
But if it's the other,non programmable ECU that's £600 and it can be returned.

He's understandably pissed off as the cars done low miles etc and as you can see it's a £1400 bill to "maybe" cure it.

If anyone's had this themselves or works for a decent vaux dealer your replies would be most welcome.