[martynt812]

Do you know the order of programming with SDD is it bcm then add keys then immobilizer ect

 

[Kukkolasse]

Hello, after installing a new battery, my Jaguar XF Sportbrake 2012 2.2d didn't recognize the keys. I managed to reprogram them, and the car powers up, but it won’t start. I've updated some modules. However, when I run the KVM program, I get the message “Failed to write target security identifier” at the end.

Below are images of my current situation and the error codes. I hope someone can help.

 

[Horlicks]

Sorry, the only Finnish I know is Lentokonesuihkuturbiinimoottoriapumekaanikkoaliupseerioppilas.

 

[martynt812]

All I can see is bcmb has different vin number

 

[xf_phil]

It looks like BCM has the wrong firmware, and wrong VIN.
Maybe it's even been replaced with a saloon BCM ( it's got firmware for a saloon BCM ). The saloon and sportbrake BCM are physically different ( for at least the rear wiper, and front/rear windscreen washer pump ).

Second last letter of sportbrake bcm part number is "B", so you should probably check the sticker on the BCM, and if the second last letter is "B", check the labelling of the circuit board says "BCM-Spbrk" too.

 

[Kukkolasse]

At a quick glance, it seems that the BCM is for the sedan model. Does this mean I now need to get a new BCM specifically for the sportbrake?

 

[xf_phil]

At a quick glance, it seems that the BCM is for the sedan model. Does this mean I now need to get a new BCM specifically for the sportbrake?

View attachment 203176

Yes ( otherwise at least you windscreen washers, and rear wiper won't work )

 

[Kukkolasse]

Yes ( otherwise at least you windscreen washers, and rear wiper won't work )

Is there any way I can program the saloon model BCM to work temporarily with the Sportbrake until I can get the correct Sportbrake version? Thank you so much for your help and for identifying the issue.

 

[xf_phil]

Is there any way I can program the saloon model BCM to work temporarily with the Sportbrake until I can get the correct Sportbrake version? Thank you so much for your help and for identifying the issue.

Maybe the original BCM could be cloned to the saloon one with an external BDM programmer as the SoC is the same, but given there are circuit differences I can't tell you if it would catch fire when in use!

I'm wondering what the situation is, did you replace the original sportbrake BCM with a saloon one, have you acquired the car like this and never had it running, acquired the car like this in a running state with non working washers and rear wiper, do you still have the original maybe faulty sportbrake bcm etc.

 

[Kukkolasse]

Maybe the original BCM could be cloned to the saloon one with an external BDM programmer as the SoC is the same, but given there are circuit differences I can't tell you if it would catch fire when in use!

I'm wondering what the situation is, did you replace the original sportbrake BCM with a saloon one, have you acquired the car like this and never had it running, acquired the car like this in a running state with non working washers and rear wiper, do you still have the original maybe faulty sportbrake bcm etc.

Here’s the situation: I bought the sportbrake even though it had issues -all the keys were lost, and it had an error code. After reading a lot about the problem, I decided to go ahead with the purchase. The car had been sitting for repairs at a Finnish dealership that supposedly specializes in Land Rover and Jaguar cars, although they didn’t seem very professional when selling it. I thought it would be easy to reset or recode the car myself. However, it looks like the repair shop already replaced the BCM (saloon version ) and tried to reprogram it. Tomorrow, I’ll go ask the shop if they replaced the BCM, and if they did, I’ll try to switch it back to the original one. I’ll also try to get a better understanding of what work they’ve already done.

 

[xf_phil]

Yes if you're lucky they may still have the original one, sometimes they are just corrupted and need reprogramming with a BDM programmer, official dealer solution is to replace them in that situation. Sometimes the pins on the blue connector are corroded due to washer fluid making it's way through the wiring from the washer pump, the board has quite a good conformal coating so often they can be salvaged either with replacement pins for the connector, or by soldering wires to the back to bypass the connector. ( Though if pin corrosion is really bad it can carry the water to the internal layers of the board, and ruin the circuit board. )

They may also assume it has failed due to water ingress, even though the real reason is corruption of the emulated eeprom due to low voltage / battery disconnect.

 

[Kukkolasse]

Alright, the situation became a bit clearer after my visit to the repair shop. The previous owner (who had owned the car for about two weeks) had taken the car in for repairs because the windshield washer pump and door locks weren’t working. When the car was brought in, it had the box shown in the picture, which, unfortunately, was also a sedan version. They tried to update both boxes to the car. I’ll try today to update that sedan model box, hoping it has the correct VIN code, even though it’s the wrong box.

Looking ahead, I’ll need to get a BCM unit specifically for the Sportbrake model, preferably one that has been reset to factory defaults, and of course delivered to Finland. Does anyone know where I could find one at a reasonable price? Thank you very much for this fantastic forum!

 

[Gav]

do you have car scrap [recycle] yards in Finland?

 

[xf_phil]

Alright, the situation became a bit clearer after my visit to the repair shop. The previous owner (who had owned the car for about two weeks) had taken the car in for repairs because the windshield washer pump and door locks weren’t working. When the car was brought in, it had the box shown in the picture, which, unfortunately, was also a sedan version. They tried to update both boxes to the car. I’ll try today to update that sedan model box, hoping it has the correct VIN code, even though it’s the wrong box.

Looking ahead, I’ll need to get a BCM unit specifically for the Sportbrake model, preferably one that has been reset to factory defaults, and of course delivered to Finland. Does anyone know where I could find one at a reasonable price? Thank you very much for this fantastic forum!

As regards a "one that has been reset to factory default", if you have reasonable soldering skills, it's probably worth getting yourself a BDM programmer ( xprog 5.84 seems to be the chosen tool for most folk, 5.55 is said to have problems reading dflash, so best to avoid 5.55 ), and do it yourself - dump the pflash, and eeprom, and edit the VIN numbers to match your car ( using a "hex editor"), and write them back. Then it should be near enough you can program it with SDD.

Wiring details / soldering, are in the following post, https://www.jaginfo.org/posts/2948062/ and the next post after it, but don't use the "virgin" eeprom from that, as it's for the saloon, and will result in non working washers on a sportbrake.

 

[Kukkolasse]

Yesterday, I managed to connect the sedan model BCM to the car, and after sitting unused for a year, the car started up like a dream and ran smoothly—even though it’s already freezing here in Finland. However, after starting it, I noticed that the washer pump and rear wiper mentioned here were not working. Additionally, the central locking or any door locking wasn’t functioning.

I started reprogramming the KVM, after which the SDD displayed "Failed to write target security identifier." Since then, I haven’t been able to reprogram the keys back into the car.

I noticed that in this BCM, both ecu_assembly_pn and ecu_delivery_assembly are filled with question marks (see attached image below).

I’ve tried to find a new BCM, but they’re hard to come by, both in Finland and abroad. The Sportbrake is really rare here in Finland, which is part of the reason I fell in love with it.

Do these question marks indicate a corrupted BCM that needs to be cleared with XRPG? Thanks to xf.phil for the link to instructions and the assistance!

 

[xf_phil]

Yes those ???? indicate that the emulated eeprom is corrupted, the emulation can only be fixed with an external programmer like xprog. You may ( rather an unknown with a saloon BCM on a sportbrake) be able to program the BCM "as new" with SDD in order to get the car to run until next battery disconnect ( the other usual problem if you do that is that the windscreen washers don't work ( even on saloon cars) - but as you have no hope to get sportbrake washers/rear wiper working without the correct BCM, it may mean that battery disconnect aside you can move the car around while you're waiting for a programmer to be deliverd and searching for a sportbrake BCM. )

I suppose after a reflash with a BDM programmer you could connect one of the wires ( probably the blue and white) for the sportbrake washer pump ( they are the bottom two pins on the blue connector ) to the output for the saloon washer pump ( pin 7 on the top left connector ), and the other to ground ( you might need to swap them to feed the front windscreen rather than rear ) but I can't say the sportbrake pump won't damage it due to different current requirements or feedback from the motor when it stops ( the saloon one may have a diode to prevent feedback due to it only running in one direction while the sportbrake one can't but the h-bridge drivers used in the sportbrake bcm are designed to cope with that ) I've no idea if you'd be allowed to use it on the road there with no rear wiper/washer, but it's a lot less concerning than no front washer!

 

[pa05ba]

Sorry to hijack this.
So I have the same issue as here many previous Jag owners. BCM had lost majority of its soft, it has been rebuilt on a bench so it has now vin and majority of its conf back on it.
I have now question, what is the correct order of SDD functions to start the car and would not brick again the BCM.

What I have done is:
1. Car can verify that 2 keys have been configured to the car previously, it recognized 2 keys.
2. I dried the Security - Immobilization functionality, it failed.
3. I run the Security - Start authorization status - it failed. I think it required soft from internet but my current SDD version does not have it. I will create new vm with previous version so I have internet connectivity to get updates from internet.
4. At the moment I have such DTC-s:

SDD recommendations are:

And from extras

I did not go into engineering mode, so if required I can also do that. Person who rebuilt the BCM told that I should start the "fix" from reconfiguring the BCMB and not the BCM.
My question after this long story is that what is the correct order and what service functions to run so it would work properly?

 

[sandmaennle]

Yes those ???? indicate that the emulated eeprom is corrupted, the emulation can only be fixed with an external programmer like xprog. You may ( rather an unknown with a saloon BCM on a sportbrake) be able to program the BCM "as new" with SDD in order to get the car to run until next battery disconnect ( the other usual problem if you do that is that the windscreen washers don't work ( even on saloon cars) - but as you have no hope to get sportbrake washers/rear wiper working without the correct BCM, it may mean that battery disconnect aside you can move the car around while you're waiting for a programmer to be deliverd and searching for a sportbrake BCM. )

I suppose after a reflash with a BDM programmer you could connect one of the wires ( probably the blue and white) for the sportbrake washer pump ( they are the bottom two pins on the blue connector ) to the output for the saloon washer pump ( pin 7 on the top left connector ), and the other to ground ( you might need to swap them to feed the front windscreen rather than rear ) but I can't say the sportbrake pump won't damage it due to different current requirements or feedback from the motor when it stops ( the saloon one may have a diode to prevent feedback due to it only running in one direction while the sportbrake one can't but the h-bridge drivers used in the sportbrake bcm are designed to cope with that ) I've no idea if you'd be allowed to use it on the road there with no rear wiper/washer, but it's a lot less concerning than no front washer!

Hi @Kukkolasse
If you fixed this ????? issue and still have the target identifier issue, have a look at the IAU. I would just try to a get used one and try it. Cheap and easy. Just plug n play.
https://www.jaginfo.org/posts/3001342/
XF_Phil helped me a lot with pointing me into this direction.

Cheers
Dirk

 

[sandmaennle]

It's not a pandemic It's just a known design issue that havn't been fixed by JLR so far

Cheers
Dirk

 

[xf_phil]

It seems recently it is a whole pandemic of this issue as there was good few posts here recently about it.
Check my post here:

It seems you forgot to add the link.

Unless you've run into a lot of cases, I'm not sure it qualifies as a "pandemic" with only your car, my car, and the one Dirk was helping out with.
Well and maybe @krisz082 too, but waiting to hear back about his second replacement IAU ( maybe the first was a bad part too ).
Especially vs the hundreds of posts about corrupt BCM.