Thanks for the info. I had a look and located the relays then used the wiring diagram to hopefully identify which was which, this is what I've come up with..
![[Linked Image]](http://tm-img.com/images/2023/03/08/Screenshot-2023-03-08-at-11.54.28.png)
![[Linked Image]](http://tm-img.com/images/2023/03/08/M3Wrelays.jpeg)
I'll try swapping the lighting relays across as they are all identical and see if it turns over. Hopefully it's a crusty relay and I dont need another battery.