Problem with Touch Screen (keep restarting, can't get past the Jaguar screen)
 

Hi all,

I would appreciate it very much if any of you can help me with this problem I'm having with the touch screen.

The touch screen can't get past the Starting Screen (screen with the Jaguar logo). It gets there, then off, then restart again, then off again.

A couple of days ago, the screen was working fine, then I noticed it slowed down, but it was still able to get to the Home Screen (the main screen with all the buttons) and all the buttons on screen works fine. Then it kept restarting, at first it was able to get to the Home Screen for a bit before restarting. After a day, it was only able to get to the Starting Screen before restarting. Now it was just on and off at the Starting Screen.

I'm unable to use the radio. A/C still works fine. However, I notice that the AC will turn off and then on again after being used for about 45 mins.

I have checked all the relevant fuses. They are all fine. Once I removed the fuse for the touchscreen, the touch screen stopped working completely. When I put it back on, the problem was still there. I have recharged the battery and even took it off then put it on again, the problem still persists.

Maybe it is the Alternator? The touchscreen couldn't get enough power to run and get to the home screen? The audio system can't play due to the lack of power? (although I think the touchscreen controls the audio system, so if the touch screen doesn't work, so goes the audio). The A/C restarts after 45 mins or so due to the same reason?

Thank you very much for your help, any idea is appreciated.

Richard

I'd get the battery load tested. If the battery is fairly old, I'd replace it. If the problem persists, then you can start looking at other potential causes.

I think the battery is fine. I had even hooked it up with a battery charger for 30 mins. Then turned on the car, the problem was still there.

It probably isn't this but it might be worth testing anyway - I had a problem with my touchscreen crashing when a particular USB stick was in the car. I wasn't sure whether it was a file on it or the stick itself, but it would lock up and crash then restart. Once I changed the USB it was fine.

I have tried using a different USB and no USB at all. Nothing worked.

What about your iphone or iPod.... Certain files will cause a crash.

I don't have anything hooked up to it.

There is a tech service bulletin on this issue. Sorry im grabbing quick bite to eat before i turn around and keep making money or ide look it up

Had the same problem FIXED IT
 

It's not a big problem I had the same and fix it fast and nice

Here it is the thread link to guide you !
https://www.jaguarforums.com/forum/x...ashing-101401/


Don't forget the thanks button :)

Bluetooth Module Compatibility
 

Hey guys,

Does anyone know if bluetooth modules with a different last digit are compatible? I have a 2009 Jaguar XF and the bluetooth module had a crack in it. Looks like one of the chips fried from water in the housing. The part number for the one I removed from the vehicles is 7G9N-10D893-AF and the one the wreckers have is 7G9N-10D893-AE. Funny enough the dealership said the module part number I need is AG. Haven't been able to find any information on it, can anyone shed some light?

Read the thread link in the post above yours. Posts #16 & 17.

From what I can see there are only 11 posts including yours. Can you send me the link? Thanks!

In the post above yours there is a link to another thread. Follow the link & go to 16 & 17.

Awesome, the exact answer I was looking for. Thanks Robinus!

Thought I'd share these location and removal diagrams in case someone else runs into this. I've ordered the following P/N, the number is a common Ford part num, the one I have on the way is from an XC-70...will see how it goes.

7G9N-10D893-AG

https://cimg1.ibsrv.net/gimg/www.jag...1f73f36007.png

Yes....last number is the revision version

Success with used unit
 

Popped the four bolts off the seat, removed sill and pulled carpet up. Far less effort than I expected. No water whatsoever.

All pictures are of the original but the replacement was identical part number. Thanks.

​​​​​​Popped open the old box, no obvious cause of the failure.

https://cimg1.ibsrv.net/gimg/www.jag...2c2faa9828.jpg
https://cimg9.ibsrv.net/gimg/www.jag...c3f737af9b.jpg
https://cimg4.ibsrv.net/gimg/www.jag...fb2ea1e919.jpg
https://cimg1.ibsrv.net/gimg/www.jag...3edb745be2.jpg
https://cimg4.ibsrv.net/gimg/www.jag...37b10368d7.jpg

For anyone else that may come across this thread down the road……..

Any of the following Bluetooth modules (all made by Ford Motor Co.) can be used in the XF-250

Jaguar 7G9N-10D893-AG
Jaguar 7G9N-10D893-AF
Land Rover 7G9N-10D893-AA
Land Rover 7G9N-10D893-AB
Volvo 7G9N-10D893-BB
Volvo 7G9N-10D893-AB

Thanks for that part list!
Very valuable to know!
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Did the replacement bluetooth module fix your screen problem? Curious as it does not appear water damaged as has been the case with others. I'm wondering if it could be damaged fibreoptic cables or dirty FO connections?