XF Forum banner
21 - 40 of 41 Posts
Good old German over engineering 🤣
 
owns 2014 Jaguar XF R
Discussion starter · #23 ·
Really doubt you have knackered anything. It's just electronic safety protocols have kicked in by changing the battery.

Can't really offer anything further. The ONLY way forward is for SDD to be linked up to the car, period. In my opinion the BMS needs resetting and 'security immobilisation' run, both using....you guessed it SDD.

Where are you at with it now?
At the moment I have someone who has the JLR SDD an he is willing to help, unfortunatly he is 130 miles away, if I can't find someone closer to me we will work something out
 
That's good you have someone to help you. 130 miles is nothing mate 😁
 
owns 2014 Jaguar XF R
Good evening ,

I have an Xf 2.2 2013, I replaced the main battery following the procedure sugested on this group
  • fully charged new battery
  • unlock-open booth -open and close driver door
-wait 30 minutes to let the system shut down
-move the keyfob away from the car
-replace the battery

Following all of the above the key is not found, I've tried with both keys and tried to position them everywhere without any success.

I would like to avoid the dealership and my local specialist could take a look earliest in November, based in NW , Lytham St Annes .

I know its been discussed before, I have read as much as I could about this topic, if one of you guys went through this and could advise me what to do would be much appreciated.

P.s I been disconected the battery before and back then I lost the central lock which was reprogrammed easily by my local garage.

Many thanks for your time!

Vince
You have the following steps in the wrong order
-wait 30 minutes to let the system shut down
-move the keyfob away from the car

Also make sure the keys are still away, and the doors are closed when reconnecting the battery.

But that's not going to help at the moment, I'd say 99% chance it's the CJB (aka BCM) that's corrupted given you can't get ignition even by holding the key to the emergency position.
In which case given it's a sportbrake, if you "fix" it using SDD ( which probably requires some tricks in itself ) you will find the windscreen washers, and rear wiper don't work. The only solution for the corrupt "eeprom" in the sportbrake is to remove the CJB, open it up, connect a BDM flash tool and extract the d-flash, rebuild the eeprom image from the d-flash dump, erase, and finally flash the eeprom image back to it. So if you're talking it to an indy make sure they have a BDM programmer ( usually x-prog or vvdiprog ), and know that a "virgin" image ( dump from a brand new module ) from a saloon won't work ( you'll be left with no washers/rear wiper).

You may could probably find out if you get yourself a autel MaxiAP200 ( no postfix ), and read the module info from the BCM ( if it has corrupt vin etc ) - having said that if you can't get ignition I'm not sure if you'll be able to read it.

Don't take it to the main dealers unless you're prepared to spend around £3k, as their only solution will be to replace the CJB!

If you're proficient at soldering, then you could consider getting an x-prog ( 5.84 or newer as from what I've heard older versions can't read d-flash reliably ), and doing it your self ( let me know and I'll point you at more info for where to attach the programmer, and can attempt rebuild of eeprom from d-flash if you send the dump), otherwise it's probably worth contacting the user MoJo88 over on jaginfo.org as he's done quite a few for folk on that forum ( I'm sure if you look around there you'll see plenty recommending his work )

You should of course once you have ignition, reset the BMS, but that won't be the cause of your smart key errors.

BTW did the old battery get too discharged to start the car before you replaced it? ( if so all bets are off no matter how carefully you follow a disconnect procedure )
 
Could it not be that 'security immobilisation' needs running from services menus in SDD. AshMT had the same issue when reprogramming his new keys to the car. But we worked out that Security Immobilisation had to be run?
 
owns 2014 Jaguar XF R
You can't run "security immobilization" unless you can get ignition ( unless you know another way? ). I have heard you can get ignition by reprogramming the KVM, and the instrument panel first but that sounds a bit of a risky business ( and certainly only for those with a decent power supply! ), and if sucessfull with leave you without windscreen washers / rear wiper while possibly loosing your chance to recover the eeprom from dflash due the writes to the BCM.
I think "keyless start backup - smart key error" on the dash is the giveaway that it's probably the BCM ( as backup codes are in the BCM, and checked by the IPC ), so should ( in theory ) still work even if the KVM is corrupt.

Recovery from d-flash should leave it back to normal without any need to re-program other modules with SDD.
Whereas if you had a virgin image for ( the correct revision ) of sportbrake BCM ( I've never seen one for any revision ), you'd then need to re-programm with SDD afterwards.
 
Hmmmm I don't think Ash could get ignition either as the car didn't recognise either key. But he could run S.I. ftom SDD🤷.

Hopefully the car is with someone with diagnostics now to look at it.
 
owns 2014 Jaguar XF R
  • Like
Reactions: sportbrakePhil
I should probably mention, when I tried it the emergency key position ( with the battery removed from the fob) it only seemed to work while the "smart key not found" message is on the dash, so you have to try pushing start with it held in the location while the message is still on ( i.e. try twice in a row )
 
Discussion starter · #30 ·
You have the following steps in the wrong order
-wait 30 minutes to let the system shut down
-move the keyfob away from the car

Also make sure the keys are still away, and the doors are closed when reconnecting the battery.

But that's not going to help at the moment, I'd say 99% chance it's the CJB (aka BCM) that's corrupted given you can't get ignition even by holding the key to the emergency position.
In which case given it's a sportbrake, if you "fix" it using SDD ( which probably requires some tricks in itself ) you will find the windscreen washers, and rear wiper don't work. The only solution for the corrupt "eeprom" in the sportbrake is to remove the CJB, open it up, connect a BDM flash tool and extract the d-flash, rebuild the eeprom image from the d-flash dump, erase, and finally flash the eeprom image back to it. So if you're talking it to an indy make sure they have a BDM programmer ( usually x-prog or vvdiprog ), and know that a "virgin" image ( dump from a brand new module ) from a saloon won't work ( you'll be left with no washers/rear wiper).

You may could probably find out if you get yourself a autel MaxiAP200 ( no postfix ), and read the module info from the BCM ( if it has corrupt vin etc ) - having said that if you can't get ignition I'm not sure if you'll be able to read it.

Don't take it to the main dealers unless you're prepared to spend around £3k, as their only solution will be to replace the CJB!

If you're proficient at soldering, then you could consider getting an x-prog ( 5.84 or newer as from what I've heard older versions can't read d-flash reliably ), and doing it your self ( let me know and I'll point you at more info for where to attach the programmer, and can attempt rebuild of eeprom from d-flash if you send the dump), otherwise it's probably worth contacting the user MoJo88 over on jaginfo.org as he's done quite a few for folk on that forum ( I'm sure if you look around there you'll see plenty recommending his work )

You should of course once you have ignition, reset the BMS, but that won't be the cause of your smart key errors.

BTW did the old battery get too discharged to start the car before you replaced it? ( if so all bets are off no matter how carefully you follow a disconnect procedure )
Thank you guys for all the useful informations. I managed to get the car back on road using SDD, however the windscreen washers and rear wiper don't work as Phil predicted above.
I will try to find somebody who can sort this out, because I don't feel that I could flash / reprogramm the CJB myself.
 
result! well done.
the windscreen washers and rear wiper don't work as Phil predicted above.
if bcm got corrupted, and these are switched off options now (are they or this is something else?), wouldn't it be the case of editing CCF and switching them back on?
 
Discussion starter · #32 ·
result! well done.

if bcm got corrupted, and these are switched off options now (are they or this is something else?), wouldn't it be the case of editing CCF and switching them back on?
I am not sure if they are switched off options and if they can be just switched back on🤔
Everything I've read until now was about about the same what Phil mentioned above, getting CJB out , soldering, replacing the corrupted eeprome image with BDM programmer... and so on(it is too technical for me)
Is there any other solution to this?
My MOT is due in 2 months and I would like to sort it out until then

P.s. The headlamp washers are working just fine
 
I dont remember seeing the option to turn them off the last time I was poking around the CCF in SDD
 
owns 2014 Jaguar XF R
result! well done.

if bcm got corrupted, and these are switched off options now (are they or this is something else?), wouldn't it be the case of editing CCF and switching them back on?
No it's not a CCF issue, when I had this problem CCF was still "as built", the issue is due to the SoC in the BCM having eeprom emulation on flash memory, the structure in the flash memory used to emulate eeprom gets corrupt so the eeprom can't be accessed.
 
I am not sure if they are switched off options and if they can be just switched back on🤔
Everything I've read until now was about about the same what Phil mentioned above, getting CJB out , soldering, replacing the corrupted eeprome image with BDM programmer... and so on(it is too technical for me)
Is there any other solution to this?
My MOT is due in 2 months and I would like to sort it out until then

P.s. The headlamp washers are working just fine
I don't think there is another solution ( though technically it should be feasible to reflash the BCM with program code that would wipe, and reinit the dflash/eeprom, the reflash the BCM with the proper code again - I've never heard of anyone managing to do it without connecting internally ).
Yeah the sooner the better no doubt if you need to drive the car, windscreen will very quickly get obscured on damp roads when there's no rain to help the wipers out, and I guess it'll be way worse once they start to salt the roads.

Can you tell us what was required in SDD to get it running again? ( I'm just curious if it's something standard like reprogram kcm, then bcm or you have to manually edit xml files to work some magic. )

If you're capable of removing/refitting the BCM, then I suggest going over to jaginfo.org, and getting in touch with the member MoJo88, he's fixed quite a few for folk over there, and some even by couriering the CJBs back an fourth.
 
Discussion starter · #37 ·
I don't think there is another solution ( though technically it should be feasible to reflash the BCM with program code that would wipe, and reinit the dflash/eeprom, the reflash the BCM with the proper code again - I've never heard of anyone managing to do it without connecting internally ).
Yeah the sooner the better no doubt if you need to drive the car, windscreen will very quickly get obscured on damp roads when there's no rain to help the wipers out, and I guess it'll be way worse once they start to salt the roads.

Can you tell us what was required in SDD to get it running again? ( I'm just curious if it's something standard like reprogram kcm, then bcm or you have to manually edit xml files to work some magic. )

If you're capable of removing/refitting the BCM, then I suggest going over to jaginfo.org, and getting in touch with the member MoJo88, he's fixed quite a few for folk over there, and some even by couriering the CJBs back an fourth.
I have tried to contact Mojo88 on jaginfo.org, but I can't send PMs because I am a new member.

I managed to start the car using SDD by configuring the keyles vechicle module and the CJB as new modules. It went online and downloaded new software and configured the key fobs as well through the process.
Everything is clear now apart from 'DSC not avaliable' (yellow warning) is on and off... This needs further investigation
 
@VinceXF I think you just have to post something in "New Member Introductions" before you can send PMs. If that doesn't work feel free to PM me some contact details on this forum ( email address / mobile number I suppose ), and I'll forward them on via PM to MoJo88 on the other forum.
 
@VinceXF I think you just have to post something in "New Member Introductions" before you can send PMs. If that doesn't work feel free to PM me some contact details on this forum ( email address / mobile number I suppose ), and I'll forward them on via PM to MoJo88 on the other forum.
Hi I am having 2013 Jaguar XF. I am having this "Unable to find smart key refer to handbook" followed by
"Reposition smart key and press start button" errors and car is not starting. This happened two times after battery is disconnected and reconnected by mechanics who are not familiar with Jaguars. First time i took it a mechanic and he did something which worked but my windshield wiper flush not working. i thought i can manage for sometime and now i took my car to another mechanic who said knows jaguars and he did the same mistake not knowing things about it. now again my car not starting. everytime i am ending up paying huge amount to these mechanics. people are literally looting my money. can someone please help me.
 
21 - 40 of 41 Posts