Trackhawk diag after recovered theft!!

2018 Trackhawk, was a recovered theft, Shop put in new dash harness/ and new dash and radio, shop coulding communicate with anything on the Can C network, traced it down to the new dash harness being pinned wrong.

[@SalvatoreS-lt6yx]

Hi there, hope you are well, I saw your comment under a Volvo vx60 video . I have a Volvo XC60 2023 that had a minor accident the curtain airbag went off ,It was in bodyshop for few weeks to get the cosmetic damage sorted. the car wouldn't start since yesterday after putting 3 battery jumpers on it finally started but there was a fault code for 12v charging system fault and I can see the battery was not charging itself ( alternator not charging the battery ) you commented you changed the relay / charging switch between the auxiliary battery and battery in the boot , do you have more info on this part please or can describe what it looks like please ? many thanks the car is only 1 year old so I don't think the battery is completely dead and unable to hold a charge ?

[@Unpluggeddiagandprogramming]

So idk if the 2023 xc60 is the same as the car I would on. But it’ll be on the battery in the engine bay. It’ll basically look like little module, with battery connections on it. If you pull the cover off the battery in the engine back you’ll see like this module thing attached to the positive terminal. And you can start the car and see if you have 14volts at it. Cause when I diagnosed the Volvo I did it had no charging voltage at it. If you send me the vin I can pull up info in Vida.