And the prize goes to Spruce, no surprise there eh!
The mechanic fitted a new lock/latch that was at the bottom of the tailgate with no effect.
He then sent me to his mate, an auto electrician who diagnosed the broken wire where they come through the body and into the door. Apparently it’s common as the wires go stiff?
I got away lightly apart from the loss of earnings, that I will catch up.
£50 lock
£30 drink for auto sparky (it’s what he asked for!)
No charge from the mechanic for the gaining access into the van, strip down and re assemble.
I gave him a good drink though.
Back at it tomorrow but not sure whether I’m happy or not!
What amazes me is that the insulation sheath around the copper wire becomes very stiff, as you say. It wasn't cold on Saturday when I did the job, so I don't know why it's so stiff. We live in a cold country, so why don't they sell wire suitable for this country with more flexible insulation. It looked like someone had been there before me. The harness has been cut, and different colour wiring has been spliced into the original harness. I've had the van 5 years, and the van is 12 years old, so I hope this repair is the last time it has to be done.
For me it was either the wiring harness or the central locking actuator. As the actuator was working fine on the side sliding door, I knew the problem was at the back if it was the wiring harness. TBH, I decided to focus on the harness first, as that was the cheapest option. Also, the central locking actuator worked sometimes and sometimes not. A meter of 5 core cable cost £5.65, so that was the place to start as it was the easiest option to investigate and the most likely.