Well folks I finally got around to fixing my trunk(boot) electrical unlock problem. It was a case of three broken wires in the multi wire cable at the pivot point by the boot hinge. The latch Microswitch is located on the latch in the center of the boot and the likely hood of it being faulty I think is slim. The motor is also durable and can be tested still installed if you have some way to make the connections. You will need to connect to both pins since the motor is in a plastic housing and not grounded to the car through the housing. I took mine out and had small alligator clips that were insulated that I put to the pins and then touched to a 12V battery. My wife helped me with this as it take more than two hands to do this. If someone need detail step by step instructions let me know. The US Jags are a bit different then UK and Australian. My latch motor is a rectangular unit all in cased in plastic and the switch is mounted on the latch bracket. The switch costs about $62.00 and I swapped mine out just to be on the safe side but it really was not bad. It is also very easy to check it out. Use a VOM and connect across the pins with small clips and close the latch with the boot open The resistance should go to a very low level like .3 ohms. When you release the latch manually it should go so that it is open the meter should show you a high level like infinity. This means the switch is open and the motor can not be energized .

 

We've been dealing with this trunk ghost on and off for years. It's been awhile since it last appeared so it must be time for it to reappear.

Good into in this thread.

 

Not sure if the thread originator is still around his Jaguar, but maybe someone else has done that, too.
I face same issue, boot won’t open except with key and an exchange against a new (breaker) part only changes the sound back to what the working motor originally sounded, but doesn‘t open the boot.
Now, if all my wires look unbroken until the disappear into the body underneath the rear screen, is there any way to easily check and measure that they are ok internally? Where is the far end of this piece of wiring harness, so I can check wire by wire?
Or is there a way to check between pins of the harness at the unplugged lock-end in the boot?

Appreciate any hint, I’m tired of driving with a red light in the cockpit and the constant „boot open“ message superseding more interesting information on the LCD.