Part 2 - My Defender has died with an electrical issue!! NOW FIXED!!

Previously......
Having not used the Defender for a couple of weeks, I decided to start it and warm it up. Things were going well until it decided to run on what sounded like 2 cylinders rather than all 5! It now no longer starts, no glow plug light and the temperature gauge reads really hot, buts its minus 3 outside!
In this second video, I investigate the issue further and fix the problem!!