Thanks for replying so quickly, the BCM and BCMB have the same vin and all characters are present. I have been trying different things with SDD and have not been able to get past programming Immo, PCM, TCM and GSM. I am including some pics that I have now will get the others sent soon.

 

Thanks for replying so quickly, the BCM and BCMB have the same vin and all characters are present. I have been trying different things with SDD and have not been able to get past programming Immo, PCM, TCM and GSM. I am including some pics that I have now will get the others sent soon.

EDIT - Actually, I see your BCM does have DTC's present, we need to know what those DTC's are really, as that might give a better idea of what can be done to move forward.

EDIT2 - I also see your IPC module has DTC's, we need to see what those are too. Odd as this sounds, whilst all the modules rely on the BCM, most of them also rely on the IPC as well, specifically the KVM. When I had my initial problem of keys not being found, the only way to get the car running again was to reprogram the IPC, THEN reprogram the other modules and re-run immobilization, for some reason the IPC being 'down' caused pretty much everything else to fail.

Interesting, your fault is definitely not the one described in this thread... I suspect the battery change being right at the beginning of the problem, may be a red herring...

Hard to tell what the problem is from the screenshots included, but it looks like your GSM, PCM and TCM modules are the only ones with actual issues, your BCM and BCMB don't seem to be reporting any issues at all... the keys not found issue in the case of this thread and others like it, all relate to a corrupted VIN number in the BCM, which causes the other modules not to trust it when it attempts to communicate with them, which leads to those modules dropping out of service and refusing to function. I suspect the problem here, is your GSM, as that's where the Key detection is done. Your PCM and TCM modules probably have nothing to do with it, but they're registering a problem, because the GSM is required to function for the PCM and TCM to do anything... if this is the case, the first thing to do (which I assume you already did), is to reprogram the GSM with all programmed keys inside the car at the time. If that doesn't work, you'll possibly need to try reprogramming your BCM, even though it isn't actually showing an issue, it's quite possible that although you never ended up with a corrupted VIN, the 'power ripple' that was caused by changing the battery, did knock the modules out of alignment and the only way I know of to re-align them is to reprogram the BCM, which then causes all of the other modules to be reprogrammed along with it and hopefully will restore communication. Once you've done that, you may need to re-run the immobilization process in SDD, or it may do it for you as part of reprogramming the BCM.

Worst case scenario here I think, is that you may need to obtain a second hand BCM, virginise it with an X-Prog device, then fit it to the car and reprogram with SDD, but this is if your BCM is actually toast (despite not reporting a corrupted VIN it may have cooked itself anyway)...

 

Good write-up HollowPoint.
I agree, that the problem from Michael is slightly different. I agree to ignore PCM and TCM at this stage.

Michael wrote, ignition will switch on and RFA (=KVM) ist not reporting any issue -> screenshot shows no programmed keys in the IPC available. So the KVM should really be fine.
The situation looks quite good. It seems like mine non-communication issue. But I'm not sure because of the red crossed GSM. I hope it is not damaged.

As HollowPoint wrote, first check the DTCs from the BCM and report them.

@HollowPoint
I would erase all DTCs in the system and re-run the immobilization first and see how far the routine will work.
Afterwards re-program the IPC first and see what SDD demands. It might ask to re-program the BCM.
I guess the GSM will not need a re-programming.
What do you think about that?

Michael,
during any SDD programming action please attach a power supply with 14V and 30A (or more) to your cat.

Cheers
Dirk

 

Good write-up HollowPoint.
I agree, that the problem from Michael is slightly different. I agree to ignore PCM and TCM at this stage.

Michael wrote, ignition will switch on and RFA (=KVM) ist not reporting any issue -> screenshot shows no programmed keys in the IPC available. So the KVM should really be fine.
The situation looks quite good. It seems like mine non-communication issue. But I'm not sure because of the red crossed GSM. I hope it is not damaged.

As HollowPoint wrote, first check the DTCs from the BCM and report them.

@HollowPoint
I would erase all DTCs in the system and re-run the immobilization first and see how far the routine will work.
Afterwards re-program the IPC first and see what SDD demands. It might ask to re-program the BCM.
I guess the GSM will not need a re-programming.
What do you think about that?

Michael,
during any SDD programming action please attach a power supply with 14V and 30A (or more) to your cat.

Cheers
Dirk

Yup, I suspect at this point, because the VIN is still correct in the BCM, clearing DTC's, then reprogramming the IPC and then the BCM, will cure the fault, assuming no modules are actually toast and this was just caused by the well known 'power ripple', caused in the XF when you disconnect the battery without performing a rain dance first.

 

That was a good write up Hollow point!

Jaguar dealer did test the GSM and said it was fine although I have tried to reprogram it and it fails. Along with trying to reprogram PCM & TCM also fail. I then did what you suggested which was to reprogram both as existing and new the BCM. Which I end up with the statement that the modules already have the most up to date software and no further programming is necessary. It stops there with the no reprogram. With lots of trying different scenarios have been trying, I would like to mention the keys being reprogrammed would only program 1 and I would have to add other key after the program has run. Using the add other key function to have two functioning keys.

I can reprogram the IPC and that seems works fine.

As for the power supply got that covered ordered a battery maintainer from Powermax 75A. Great little box stays constant at 13.5v and just modified and set of jumper cables to connect to it. Amazon is great for that stuff.

here are the pics of the DTC's. there are a lot of BCM in there.
Thanks again enjoy your day!

Michael

 

That was a good write up Hollow point!

Jaguar dealer did test the GSM and said it was fine although I have tried to reprogram it and it fails. Along with trying to reprogram PCM & TCM also fail. I then did what you suggested which was to reprogram both as existing and new the BCM. Which I end up with the statement that the modules already have the most up to date software and no further programming is necessary. It stops there with the no reprogram. With lots of trying different scenarios have been trying, I would like to mention the keys being reprogrammed would only program 1 and I would have to add other key after the program has run. Using the add other key function to have two functioning keys.

I can reprogram the IPC and that seems works fine.

As for the power supply got that covered ordered a battery maintainer from Powermax 75A. Great little box stays constant at 13.5v and just modified and set of jumper cables to connect to it. Amazon is great for that stuff.

here are the pics of the DTC's. there are a lot of BCM in there.
Thanks again enjoy your day!


Michael

I hate to say it, but if reprogramming the IPC doesn't free up the ability to then reprogram the BCM, your BCM might actually be toast... have you (or Jaguar) checked it for corrosion? This could be a combination of two known issues, where prior to the battery change the BCM was just hanging in there and communicating with the other modules, but following the 'ripple' when you disconnected the battery, it's unable to re-establish connection... I'm not sure if there's a way to fix a BCM with corrosion, or if you have to replace it... in theory, you should be able to clean up the corrosion to restore connectivity to the loom, provided the BCM itself isn't toasted.

Just for clarity, I think the process for me went as follows:

Reprogram IPC as existing
Reprogram other modules that were showing as not present as 'new'
Reprogram BCM as existing

 

I think I remember the dealer stating that he did remove the plugs on the BCM and everything looked fine. I have not removed all the plugs just the top left which is usually the water ingress culprit that you are mentioning and it looked fine. I will however when I get home tonight pull the rest of them out and see what's there and if I have any water damage.

I guess while I'm there I will do a BCM hard reset by taking all the connectors off and disconnecting the power to the module for 5 seconds I think this is a bulletin that is on the highway traffic act page and see if it allows me to reprogram it.

Thanks again will keep you posted.

 

I think I remember the dealer stating that he did remove the plugs on the BCM and everything looked fine. I have not removed all the plugs just the top left which is usually the water ingress culprit that you are mentioning and it looked fine. I will however when I get home tonight pull the rest of them out and see what's there and if I have any water damage.

I guess while I'm there I will do a BCM hard reset by taking all the connectors off and disconnecting the power to the module for 5 seconds I think this is a bulletin that is on the highway traffic act page and see if it allows me to reprogram it.

Thanks again will keep you posted.

Just FYI, you can just disconnect the battery terminals, join them together (away from the battery) for 5 seconds, then reconnect, does the same thing, without having to fiddle around with the connectors on the BCM itself. Tonight when you get home, I'd urge you to do the following:

1. Hard Reset with battery terminals
2. Clear DTC's with SDD
3. Reprogram IPC as existing with SDD
4. Reprogram failed modules (with the X) as new using SDD
5. Reprogram BCM as existing with SDD

Unfortunately, because the modules are all interdependent, they try to talk to each other, if there's a failed module in the way (like the IPC, or BCM) they fail to talk to each other when using SDD and they flag up as missing, meanwhile the IPC and BCM will report a loss of communication with various modules... most of your DTC's imply that your IPC and/or your BCM are in a failed state, but the problem is, if you reprogram the IPC and then try to run immobilization before you also reprogram the 'failed' modules and then the BCM, you don't complete the reset and other DTC's start showing up.

 

That makes total sense, by clearing one fault but not going in order to clear them all just causes a vicious circle.

I will try the order that you stated for me thank you very much for that.

Since the last time I did the Hard reset at the battery terminals was three months ago can you remind me if you have to remove the Small battery terminals too, I have the dual battery system. I am pretty sure the dealer said the remove them and I did build a jumper wire just for that occasion.

 

To my knowledge, no, since the smaller battery is purely to keep systems online when the vehicles engine turns off and the use of it is controlled by the main systems, but better safe than sorry, for the avoidance of doubt, I would disconnect the accessory battery first, then the main battery, then connect back together in reverse order.

 

I agree with all things HollowPoint wrote, except to short the BCM. I wouldn't disconnect our facelift modules twice. You risk to really brick them.
I would recommend trying HollowPoints programming sequence first.

Dirk

 

I agree with all things HollowPoint wrote, except to short the BCM. I wouldn't disconnect our facelift modules twice. You risk to really brick them.
I would recommend trying HollowPoints programming sequence first.

Dirk

I agree actually, although I'd just recommend following the shutdown procedure first... pop the boot/trunk and leave the drivers door open for 20 minutes, with the keys nowhere near the car, then disconnect the battery, hard reset and put it back together. There's no inherent risk to disconnecting the battery, other than when the computers are not shutdown. In my case, my VIN was corrupted in my BCM, so I had nothing to lose anyway, in your case you still have a VIN in your BCM, so follow the proper battery disconnect process before the reset.

 

Several Forum members have reported on how they've had Halfords change their battery, apparently successfully. I can't imagine that the techs at Halfords go to the trouble of leaving the car for 30 mins or so with the keys well away from it to let the computer modules fully shut down.
So have these Forum members just been lucky that Halfords hasn't bricked some of their modules?
And I wonder if Halfords would take responsibility for the repair if they did brick a module?

 

Several Forum members have reported on how they've had Halfords change their battery, apparently successfully. I can't imagine that the techs at Halfords go to the trouble of leaving the car for 30 mins or so with the keys well away from it to let the computer modules fully shut down.
So have these Forum members just been lucky that Halfords hasn't bricked some of their modules?
And I wonder if Halfords would take responsibility for the repair if they did brick a module?

I can only imagine it is luck, yes. Plenty of people on the forum have also reported changing their own battery multiple times with no issues... quite possible that it's only a batch of XF 250's made between '12 and '15 that suffer the issue, which likely relates to the batch of BCM's made, rather than the cars... no one knows for sure, as far as I can tell. Jaguar still don't even recognise it as a fault of their design!

 

Isn't this an issue that affects the facelift X250 . . . . the X250s built from 2011 up to the X260 . . . 2015?

 

Yup, doesn't seem to affect any of the early x250's or the x260's. I don't think anyone has tried to ascertain whether it's all x250 facelifts though, or just some of them... as Chris said, some people have reported not following any battery procedure at all, taking their battery off and/or replacing their battery several times, without the issue raising its head on their cars.

 

Maybe Halfords attach a power source, much like the AA or Jaguar Assist might.

 

I hope Michael will succeed with the programming sequence from HollowPoint

Cheers
Dirk

 

Ok, so I did the reset of the front BCM didn't want to risk the rear BCMB going out too. I now have no keys present , so do I go the IPC route first or is there another way I should approach this?

By the way the interior lights are working again but ultimately no start.

 

Hello everyone, Fast and easy note I got it running again. It's pretty late here and I haven't even eaten yet so I will give a full write up of what I did and what I found out. also, why this happened.

 

That's excellent news! I look forward to hearing how you did it.

 

sorry forgot to mention tomorrow morning.

 

Running again?! That would be really good!! Looking forward to your details 😍 . In a few hours

Dirk

 

I know for a certainty that it doesn't affect the early XF's like mine, I have successfully changed the battery 4 times without waiting for anything to shut down, I have also disconnected it a few times to work on the car. Phil

 

Good Morning,

It has been along journey, 3 months to be exact and numerous read post/bulletins on the JaguarXF x250 Facelift. One trip to the dealer and a $14K that's right!!! you read that correctly they wanted $13,868.00 to replace and reprogram the BCM and the BCMB to which they also stated the parts were unavailable and there was no eta on them. Which started me on this knowledge based information on the Jaguar. Like I mentioned I am a decent back yard mechanic which helped and a decent amount of knowledge in computers which really helped. So to fix this your are going to need both.

First of all you need to have SDD and the J2534 cable for JLR or this will never work. If fact Buying a Jaguar XF x250 should mean if your are attempting to do any work yourself this is the first tool for you buy! Like a wise man once told me you cannot do the job unless you have the right tools. There are lots of videos on how to set up the software and cable. Topix does have hourly and daily fees for using their online software.

Now for the fun, I am pretty sure that this involves the 2011-2015 Jaguar XF X250 Facelift cars. It doesn't happen to every car but at some point it might. Just like hockey its not a matter of if you are going to get hit, its a matter of when. So removing the power source from the car AKA the battery, it stops supplying the power to the two main computers in the car. The BCM (lower kick panel right side) and BCMB (in the boot/trunk also right side). The memory on the BCM/BCMB become corrupt just like the Bios on a computer if it is shut down incorrectly. Usually there is one main culprit that takes the hit first the front BCM which has the tall tale signs of your Vin with ??? marks in it as opposed to the usual numbers and letters. Using SDD you can see this. My car didn't have this and the correct Vin present so I was confused, all looked good inside but it was still corrupted and this stumped the dealer too. Once you see that there is the corrupted Bios/memory chip you either spend the cash and buy a new one from jaguar @ $5500.00 here in Canada or you reprogram it yourself using Xprog or other. There is a write up on how to do this at JAGUAR 재규어 XF (X250) BCM 복구 및 수리 #1 - GRIP.News its in another language but you just have to click translate web page at top in to the language you prefer.

The Nitty Gritty there is a work around to get it running, So removing the battery is not good as mentioned by several forum members and me. I went to the power distribution Junction box in the boot where the battery cable runs into first and disconnected the BCM power supply. This way the the other computers still have power, I knew there was something wrong with the BCM so I had nothing to loose by disconnecting it again. Then I tested the power supply first at the BCM and it was 0 volts, then proceeded to disconnected all the plugs from it I think 8 in total. Let it sit for about 5 minutes. Then put all the plugs back in their proper locations and reattached the power cable in the boot.

First thing I noticed was my interior lights were working again and my glove box would open I was ecstatic , I know the small things..... but any positive feed back was heaven sent. So no keys, no nothing, I started in SDD.....which now confirmed the ???? in the VIN for BCM. But I got it running and works normally to drive but if the car looses power or a dead battery happens then your back to square one with no start and the following will need to be done to get it going again.

1. Need to get at least one key working in the car. This is done in service functions I did "key recovery" first and then add keys to car. it took a couple of trys but I got the keys in. I now could control the on/off button. Huge success!
2.IPC is the next thing to get programmed which was straight forward and done in Extras as new not existing. This then started the start/stop button blinking and I had no more warning lights on the cars display. So I put my foot down on the brake pedal and crossed my fingers pressed the start button. Wholly crap it worked, the car started.
3. Stop here until you get the BCM properly repaired the continue on clearing other codes that might be stored.

So you don't have to have the BCM properly formatted to the car as mine is not, my vin is messed up which is shown in the output of it. But I know now that it needs to be reprogrammed/reflash and I am going to order Xprog to do this. But for now as long as my battery doesn't die and it is new so I should be fine the car runs and drives like it used to. NO warning lights and all systems are working, wipers and washers included.

I would like to thank everyone on the forum because without them and their insite, I could not have done what I did on my own.

Thanks,

 

Thanks for the feedback, Michael! Well done and exiting write up .
14k??? That's the highest price for this service I have heard so far . Max price here in Germany was 9k EUR
Nice try Jaguar....

I'm looking forward to the rest of your story. Good luck with the XProg.
You may ask dekiello, MoJo or Onotole for a suitable virgin file.

Cheers
Dirk

 

Hi all I have been through all this I have everything working but no vin in bcm how can I correct this. Thanks

 

What's the full part number of your BCM ( it'll be DX23-14B476-** - what are the ** ) ?
The part number is on the side of the BCM, see below for how to remove the trim to see it

https://www.jaginfo.org/threads/faulty-external-temperature-sensor-despite-being-replaced.117238/?post_id=2993968#post-2993968

 

Hi thanks I will check tomorrow as dark here now, I will post all on here.

 

Just had a look at my last session and it's only bcm that has missing data. BCM part number is DX23-14C256-AC

 

Ah no it's the ecu_assembly part number I was after, not the core assembly, unless you have an older session you can read it from you probably need to read it off the sticker.

In summary, if it's a saloon the second last letter will be A, if the last letter is G the read the following linked post https://www.jaginfo.org/threads/car...s/car-not-starting-lost-the-fobs-sdd.115586/page-2?post_id=2948062#post-2948062 and the next post in that thread.
( if the last letter is A-F, then follow the link below and attempt to reconstruct from dflash as you should if it's a sportbrake. )


If it's a sportbrake the second last letter will be B, as long as the last letter isn't' H you should read post #5 from https://www.jaguarforums.com/forum/xf-xfr-x250-44/car-wont-start-after-new-egr-installation-281331/#post2761792

If the last letter if H then I hear BDM programmers don't work with those BCMs but they usually they don't fail, and it's worth trying another battery disconnect with those.

 

Thanks I will try and find the time to put it out tomorrow weather permitting

 

Ok I get it now I need to get it virgiized or something like that the reprogram it in a certain order to get everything working ie keys ect do you know the order of things, I have found someone who can do the BCM but and post it back. Thanks

 

Yeah if you don't fancy the soldering, or don't want to wait for a BDM programmer to arrive, that's probably they way to go.