Apologies for those who visit both forums - trying to reach as many of the brains as possible on both sides of the pond, I'm totally stumped

Last year Life overtook me in a big way, and the car sat idle from October until March. Fitted new battery, and charged it on a CTEK. Dealt with all issues except screen / CD player buttons etc. Once a long time ago that lot came to life part way into a 5 mile drive. This car has had 3 five mile drives, a new battery, a CTEK reach stage 7 (last is 8, probably hit that tomorrow), and nothing.

Fan and controls work, but nothing CD, nothing screen related.

EDIT - fan controls work, including temperature, hazard light button works, demisters etc, but CD has nothing, cannot play or eject, and the screen is totally off/ blank
Tried all the reported tricks, switch on before starting car etc, nothing at all. The fact that it worked before the car was parked up makes me think something obvious.

I have been through the full list of fuses related (or that seem to be related) and cannot find a blown one - going this route because we did use a starter pack initially to fire her into life.

I'm stuck and need to know:
1. Is the CD player connected to the screen - ie if one goes do they both go?
2. Is there something else a lay up could have done, is there some other fuse or reset related issue?
I know new batteries can be an issue, but this is RAC VARTA - they have a high turnover and don't tend to sit around for long.

If I recall VARTA is good, YUASA is not good. Ironic because on some of my motorbikes YUASA = the best and only!

If I need another screen, is it true XF is the same as XK screen?

Any help will be very much appreciated. At this rate no Jag for the Surrey meeting, but more worrying is Le Mans beginning of June. Thanks in advance

 

Might try charging the new battery on a regular battery charger (vs. C-Tek) for a few hours.

 

Sure I can do that, will give it a try, but my CTEK is the 10A version if that makes any difference at all?

 

A CTek is not a battery charger. It is a battery maintainer. Either put it on a charger or take it back to where you bought it and have them give it a full charge. If the battery doesn't read at least 12.6 Volts across the to anodes when disconnected it is not fully charged and that can lead to all kinds of problems. If it isn't your battery there are threads on the Forum dealing with putting and XF screen in to XK's; maybe in the stickies if not use the search box in the upper right corner. Good luck!!

 

I assumed the CTEK was also a charger. Ok, in that case I will recover my chargers from the storage unit tomorrow (I've moved house just to add to the complications) and I'll put the battery on charge for a few hours. See if I can find my voltmeter too and test for 12.6 - everything I'm reading keeps mentioning 12.6. Thanks for your help

 

CTEK should be fine - wait till it's done its full cycle - I would disconnect the battery and let the electronics drain for a minute or two and reconnect.

Read the manual - if you don't have one they are available online.

 

1. Is the CD player connected to the screen - ie if one goes do they both go? You don't mention if you have premium or standard audio but not sure it matters here. Fuse F21 in the rear auxiliary panel operates the CD player, technically referred to as Integrated Audio Module. But that fuse also operates the integrated control panel (buttons and knobs below the screen) which you say work. The unit is connected to the screen and several other modules in a loop using fiber optics. If the unit fails, the module (in your case CD player) is ignored as though it's not there and if you go to audio and try to select CD, it will be grayed out.

 

I replaced my CD player with one from an XF (less than $50). The problem was the CD player would not eject so the screen is independent from the screen. Hope that this is of help.

 

The CTEK is a charger and will have fully charged your battery once all the lights come on, albeit that it charges in a smart way and will therefore not keep on charging your battery until it is ruined. However, the CTEK can also operate as a bulk charger which CTEK call "Supply" charging. You will see the "Supply" light come on when you select this option. This is not smart and, if left on permanently, will eventually destroy your battery. However, you could safely leave it connected for 12 hours and then let the battery rest for a few hours and then check the voltage to ensure that it is above 12.6V.

Richard

 

@wsn03 See:

https://www.jaguarforums.com/forum/x...player-240681/

https://www.jaguarforums.com/forum/x...change-119991/

https://www.jaguarforum.com/threads/...g-else.105723/

Good luck!


Stuart

 

These answers are fabulous.
please give me some time to respond and update on progress

many thanks for all your help, I really appreciate it

 

I've been doing more on this and more research.

What have I done
Fully charged the battery, I get a resting voltage of over 12.6.

Run diagnostics, getting MOST or communication errors related to navigation etc, and it appears from some of the errors that I either have a damaged fuse or a damaged cable. The cable could be mouse over winter chews away. However I'm going to check every fuse now, who knows it only takes one and I have time (and can't see it being anything else).. Im going to also disconnect the battery completely while I do the fuses

What else?
Im going to try a hard reset. I read about windows - on my last battery gone flat I had issues with the windows big time. I'm thinking if I disconnect the battery for a few hours, check every single fuse, reconnect, then hopefully thats another important step done - most of those fuses are some 17 years old.

I struggle with electrics, though have managed to solve a few issues over time. I'm going to look at the wiring diagrams to see if there is a relay I've seen mentioned, then look up how to test it or just risk buying another one.

If anyone has anything to add over and above what has already been posted or what I've written I'd very much appreciate hearing from you.
Thank you

EDIT - found the relay on the wiring diagram, found how to test it too. I'll get there, this almost feels like something I can get my head around - watch this space

 

I've also discovered XF screens can plug in and work in a fashion - they are so cheap I'm going to buy one just to test if it was my screen

 

Full reset
screen came on when i reset the battery

Error codes to deal with, and a drive, will see what happens to bring it back permanently

 

Went to auto electrician

Found the issue in 5 minutes without putting any diagnostics on the car - it was the satnav unit ruined he said by getting damp while the car was laid up outside.
bypassed it with a bypass plug, I don't ever use it.

Since then everything is 100%
He specialises in Jags, said one issue anywhere on ours tends to play havoc with everything else. I had brake issues, battery draining issues - the lot. This one fix has cured everything

 

If it was the GPS antenna under the rear spoiler, they nearly always succumb to water ingress and fail eventually. The CANbus does not pick up this failure so an ODB scan won't show anything. The only symptom is usually that the current location on the satnav screen is not correct. You can buy a £20 part on eBay and fix the problem in 10 minutes. Many of us have done the same fix and there are plenty of threads about it.

Richard

 

That's useful for the future, thank you