Had the ‘no start’ issue happen to me a few years ago, and recalling Stuart’s suggestion solved it, so I was a convert after that and use the ‘button-then-brake’ method (however my other car is stupid and only starts when the brake is pressed first).

 

Wow, I can't wait to try this when I have the Logo screen and nothing else. I have watched this and other Jag forums for this topic for years and this is the first time I have seen something that could make sense,
Many thanks
Howell Owens

 

Maybe because that is the right way!

 

I have had a 2012 XK convertible for 4 years now. This is the first serious issues that I have had.
Around 4 months ago, the touch screen (ie center console nav screen) would go blank after about 5 minutes. This got worse, to the point where now, it simply shows the Jaguar logo briefly as the door is opened and then goes blank after 1 second.
I have tried all the remedies shown on this forum (hold start button, etc), none have worked. My battery is one year old, puts out 12.9 volts
My local useless Jaguar dealer tried reprogramming/updating software ($600) did not work, Now they tell me the screen is bad but I have to find the part myself as they cannot get one!! (told you they were useless....). I am not 100% convinced this is the solution as the screen does power on briefly.
Getting very frustrated, as hard to do many things without the screen. Could the battery be the wrong type, even though strong? Any other ideas?

 

Sorry, I don't have a good answer to your problem but I am almost certain it's not the battery type. If the battery charges to spec and works to power other functions in the car, it is most probably not the culprit here.

 

C2P15096 or 9W8310E889AB XK to B38853 This part starts ini 2010 and should work in your car
C2P22549 or 9W8310E889AC XK to B43850
C2P22718 or 9W8310E889AD XK to B50269
C2P24868 or 9W8310E889AF XK from B50270
C2P25733 or 9W8310E889AG XK most current version

Here's one
https://www.ebay.com/itm/12-2012-Jag...QAAOSwcqxfec0e

Another:
https://www.ebay.com/itm/12-2012-Jag...MAAOSw~mxf0lbZ

 

The dealer is not useless, they tried to help you because Jaguar no longer offers these parts for sale. As Sean suggested, there are several part numbers to search for and they do come up on eBay frequently. Also there is an aftermarket solution available that brings the car to the 21st century.

https://www.jaguarforums.com/forum/x...system-239623/

 

Hi All.

In auto mode these screens detect the outside light and go dim or bright accordingly (I don't know whether the sensor is part of the screen or whether it uses the same one utilised by the mirrors and/or auto headlamp facility - I've looked at the wiring diagram but was unable to ascertain this). Certainly with one of my cars (screen came on briefly then went blank) I believe the sensor was bad (or the part within the unit that receives said signal). Try, as I did, turning the ignition on in the dark and see if the screen stays on (mine did). If so then select the screen brightness control slider on the screen and turn it down to below 50% and onto Manual rather than Auto. This worked for me and (touch wood) it has worked perfectly ever since. Like other members I tried all the voltage checks etc thinking that was the cause of the blank screen. Good luck ! (And Happy Christmas everyone !)

 

It's a < $200 fix for a replacement. They are plug and play and he need not use the dealer if he has a torx screwdriver and a plastic pry tool. I've done several of these and having done them, it's a 15 minute job. First time, it took maybe 30 minutes.
Put the car in Drive. (for an 07 - 09). Not needed with the newer dial-a-stitch gear selectors on the 2010 onward.
Turn off the ignition after applying the park brake.
Using the plastic auto trim prying tool, pry away the facia
Select the correct torx size and remove the 6 torx screws
then there are two more smaller ones (at least on my car) that hold the center vent in place. Remove them too.
Towel down on the center console to prevent scratching
Pull the unit out and then pull down from the top to acee the screen.
Remove the 3 connection, power, GVIF (blue) and MOST connection. They all have tabs - just squeeze and pull.
On each side of the touch screen you will see two screws (torx again) - remove the lower one. The upper one just needs to be loosened. Do this on both sides.
Pull the unit out.

Replacement is reverse of procedure.

Bottom line it it will cost him <$200 to fix this assuming he doesn't have a voltage problem. Voltage at the battery doesn't translate to voltage at the touch screen but I would assume the dealership tested that.
The screens fail. It's 8 years old.

 

I should correct one comment I made above. He will need to have a dealer add AUX in if he had it on his original head unit and assuming the new unit doesn't. So maybe not just plug and play, however, the unit itself doesn't require dealer software to install, just to add accessories.

 

Sean's post (#29) should go up into the stickies with an addendum from #30.

 

well, if I told you the whole story, I think you would agree they are useless....

 

How about adding a more valued reply loz? We're here to help each other. We gave you options. Have you purchased one of the new head units I linked for you? The point of the post is solutions and we'd all like to see you succeed. What are your next steps?

 

Apologies Sean, it was just a quick reply.
I posted this yesterday, I read the replies (including yours) this morning. I have not had chance to take any action yet, but here's my plan...
Apparently the 2012 model year has two screen units - 6W83-10E889-AG for "early in the year models" (I cannot find exactly what early in the year means) and 9W83-10E889-AD (or AG) for models later in the year - has to be confirmed by cross-referencing against VIN. I was told by Jaguar that the part I wanted was 6W83, so I bought on eBay ($425) but when I took it to Jaguar they told me it fitted physically but "would not program". They then advised me that it "might" be the 9W83 unit
As per your note, I see two old units on eBay (that is all I could find too) and will purchase one of them. Will follow up when I have the unit.
My comments on my local Jaguar dealer were not just based on the wrong information. The first time they tried to fix this, they had the car for a week. They tried reprogramming the unit with no success. This effort cost me $625. Not once in the entire week did the service advisor call me back. When I called, it was always "I was just about to call you". The second time was when I gave them the 6W83 unit, it only took them 3 days to find out it would not work - and of course I had to call them to find out. To be fair, I was warned about this dealer, but I felt I had no choice as they told me that it had to be "programmed".

 

loz, I suggest you look around for an independent Jaguar mechanic/shop that have the equipment to program the car. Dealers are not the only ones that can do this. Once you find one, call and explain your situation and get their advice (as well as take Sean's, as you have been doing). Generally an independent will be more engaged in helping you than a typical Jag dealer - mostly, they want to sell and service newer Jags for which their service departments are trained. Their service departments know little about older Jags like ours.

 

Yes apparently there are some JLR dealers who no longer service cars prior to MY2012 😱. And already the 2015 X150 is considered a vintage Jaguar 🤦🏻‍♂️.

Loz, sorry to hear about your experience, they should have provided a disclaimer prior to accepting the work order and if not you may have some recourse with the service manager.

 

Bill you are correct. I have no intention of using them again, really because - as you stated - they are not really interested in working on older models. Their lack of decent customer service just irritated me. Two visits, 8 total days, $600 with no solution, and not a single call from them (even when I left messages).

 

Just after buying my XK, I called my local JLR dealer to ask about what I thought would be a simple reprogramming of my car to activate the AUX channel on my infotainment system. The service manager had no idea what I was talking about, and kept saying "we can't do that with our diagnostic system." I then called an indie Jag specialist and he spent an hour with me on the phone, with the diagnostic computer in front of him, going through menus in an effort to accommodate my request. I took the car to him and - with the same system the JLR dealer said could not be used - he activated the AUX channel in about 15 minutes.

Find someone who see Jags of our vintage regularly and thinks of them as an important source of income. They will want to help. I feel some JLR dealers see our cars as a nuisance, not a valued customer segment.

 

Just so you're aware loz -6W83-10E889-AG applies to 07-09 models only. 6W83 changing over to 9W83 means there was some sort of hardware change. This is typical of any Jaguar part. In the case of the head units - the temperature control module on 2010 onward changed from 2007 - 2009, which is why the unit will not function in your car. Some things will work but not the climate, seat heaters or steering wheel heater.

That said, you can put your 6W83-10E889-AG up for sale on eBay. It might take awhile but it will sell. and you'll get your money back minus eBay's share.

Do recall if you had AUX enabled in your car? If so, that will need to be reactivated. If not, plug and play should be fine but I can't say for sure as I don't know what the dealer did in their attempt to "program" the head unit.

Good luck and let us know the result.

 

Sean, your advice re: serial/VIN numbers is spot on. I did order the part from one of the eBay links that you sent. It was clearly advertised as AD on eBay. However when it arrived it turned out to be AE......which of course is not compatible.
Jaguar advised me C2P25733 9W8310E889 AG is best, but AD and AF also cross-reference correctly.
Thanks for the accurate advice......my saga to find the right part continues......