I'm creating this thread to track resolution of this issue so others can benefit.

Basically trouble started when I disconnected the battery negative terminal to replace dash trim over the air bag. It manifested first as a transmission fault. Now I see it's an electrical problem and it's going into a shop next week so I will list the findings and resolution here.

Original Thread https://www.jaguarforums.com/forum/s...rchid=14939576

Issue: transmission fault causing rough shifting from park/reverse and trouble shifting at speed sometimes. High beams stopped working sporadically. All lights stopped working sporadically. error message for ebrake. Fault codes for voltage at door module and TCM as well as sporadic electrical codes.

Things tried:
Trickle charge battery
replace battery
check grounds
check battery alternator voltage
hard reset (disconnect, wait, short terminals)

All of these had occasional effects. Sometimes car runs fine. then it will lose it's mind. I don't have ramps or a lift, or time LOL so it's off to a specialty shop to figure it out.

If you have these issues watch this thread for results next week!

 

Somebody may have suggested this before, so apologies if they have.. but have you attended to the ground posts behind each headlamp? Lots of information on this if you search

 

If there are any problems with the wipers it could be the earths behind the headlights

 

Issue Resolved. Issue was rodent damage to some wires and a loose connector as well. Finding a mechanic to work on this as I have no lift or ramps, and no expertise, was a challenge. Jaguar dealer wouldn't touch it, and even the European auto shops wanted nothing to do with it. In the end we had it taken an hour south to Kittery, Maine (USA) for service at a place called Auto Works (Kittery, Maine). They fixed everything and I will return for anything too difficult for me to tackle!