StoneTheCrows said:
RR here is as good a place as any for information.
Thanks STC,
SHORT CUT, A Picture of the Lead is at the bottom,
What the Dealers use costs $000000 of bucks but you can cheat and do the same for around 20 or 30 bucks or a few hundred bucks if you buy either the NOCO GB70 or the GB150 or the Mega Dollar GB500 as the Lead will only work with these 3 models, I bought the GB70 and the GB150 because these have a 15Ah 12v output Socket which can be used to power fridges short term or in this case Keep your Vehicles DATA Alive.
https://no.co/products/power/jumpstarters
First and cheapest option is to buy one of these "SEE BELOW" and either cut the round plug off of it and fit either an Anderson Plug or Crocodile Clips so you can hook it up to a spare battery or another vehicles battery, They say it should fit All Vehicles built after 1995, It has worked on my 2017/18 Ford and my Brothers VW Touran and Both vehicles are Diesel,
It has 2 pins that go in to your OBD Socket and it will keep you Vehicle electronics Alive while you remove the Battery, Or Like I did just removed the Positive lead because They made it a Bugger to remove the Battery without removing the Wipers and the Cowl, and My ford also has a Neg - Stud used for jump starting,
With the POS+ lead on the Battery disconnected The NOCO GB150 and the OBD Lead still allowed me to operate the Door Locks and the Auto Folding Mirrors, But Hook up the OBD lead and power supply first and then take off your battery lead/s or remove the battery altogether,
Here's the Lead Info,
https://no.co/gbc012