Hi all, my dads 1.3 500l is coming up with the glow plug sign every so often. I've done a scan an know it's error P0674 Cylinder #4 Glow Plug Circuit. Which is getting looked at as may just be loose plug or not enough current. But also if do a DTC scan comes up b1081 stop/start relay. There is no issues with the stop start so wondering if could be a stored code that isn't showing on engine ECU. Anyone come across this. It's a ex demo car an under warranty so if needs be could just take to fiat an get them look.

I had this on mine when i bought it from Arnold Clark, they got a new glow plug fitted under warranty an ok since...