Recently had indicator lamp fail error, and was about to buy new bulbs. Coincidentally was booking car in with my independent specialist and asked him if he could sell a couple of bulbs, really helpful tech. Instantly asked me if my headlight was working which I hadn't checked as not using in evening. Anyhow headlight also out, my guy asked if I had 15minutes spare, he then removed the front wheel and shown me a broken earth point just behind the strut and reattached to a better point. Everything working fine again, great guy who didn't even want paying for the task ( probably because I put all my servicing and maintenance through him. As it was Friday I insisted he take a few drinks for him and his Lady.
just a heads up folks, must be quite common. Thought it may help

 

Driver's side or passenger side front wheel? TIA

 

Drivers side on UK car