It seeems as though the faults that you work on and kindly show us how to repair,are never ending. I am still hestitant to sell my 2014 110 DC to buy one. I am in S.Island NZ,where we have virtually no corrrosion issues. I am very keen on a 2018 SDV8 autobiography with 60k miles on it. Really undecided to be honest.
I clean mine regularly with contact cleaner, gently tap it on a cloth to get the carbon “crumbs” out, did the same in my L322 and not had any issues, perhaps it was the compressed air
Also worth mentioning - I leave it to dry by a radiator or in direct sunlight for at least an hour. If some of that cleaner was still present and current went through it when you connected it could have shorted the sensor
There was a video on either L322 or L405 there is an electric junction behind the wheel liner. The video stated that corrosion in the junction can cause electric issues. I hope this might resolve your battery voltage issue.
Very interesting video can you help me mine Range Rover have 2 Code I used Xtool D7S scanner if you know how to solve this please. 1. P0105-16 2. P040D-00 👌👍❤️❤️🙏🙏
P040D is the tempertature sensor in the left hand exhaust manifold. Doesn't require any action as plenty of guys have ran with the sensor faulty for years, with no ill effect. My L494 has had it since I bought it. Not an easy sensor to change out, also carries the risk of rounding it off which in turn causes a lot of work to fix.