Reprograming Key Via MultiEcuScan

[s130]

It is my understanding that later Fiats, eg. 500X, Tipo, 124 there is no KEY/PIN that is user or garage/dealer accessible. The vehicle uses "pass-through" whereby the key programming kit connects to car ECU to get VIN info, this is then sent to Fiat servers, and they send back the relevant "hidden" code. All this is encrypted and only the Fiat Servers and Engine ECU know. As it link is encrypted then you cannot sniff the connection and see the code. Also I don't think like on older ECUs the code can be extracted.

I always advise that anybody using MES to program keys they should do it outside a Fiat dealer or other specialist, or have a trailer with winch etc. becuase if the programming fails for any reason then you will have a dead car on your hands.

 

[SchumacherMax]

As in post #3

I didnt realise 'missed' keys could never be re.entered ( would then require a virgin chip no doubt)


In the last couple of years the FIAT UK network have given A4 printouts rather than a physical card

Cost for the A4 paper has varied from £20 /£40 range generally... worth getting several quotes

Can confirm Portsmouth Fiat did mine approx 2 months ago for Free I did do a test drive in a 695... that may have helped

 

[s130]

As in post #3

I didnt realise 'missed' keys could never be re.entered ( would then require a virgin chip no doubt)

I'm not sure this is the case.

Any key not present when a new key is programmed will be deleted hence the importance to have all keys present. However I think missed keys can be programmed back in but as before all required keys must be present.

 

[The Panda Nut]

I believe but have not tried for obvious reasons that you can programme the keys you have missed but you woudld have to reporgramme all the keys again in one go. There is no reason the key would be unusable. MES suggest if you dont do them all any not done will not work. KItbdoes not say you cannot start again and include them all.

 

[s130]

Update on Missed Keys:

My not being sure is I'm NOW SURE missed keys can NEVER be programmed back into the Body / Key Control Units.

I'm surprised at this as it seems a little OTT and just another way to make money.

 

[AndyRKett]

Update on Missed Keys:

My not being sure is I'm NOW SURE missed keys can NEVER be programmed back into the Body / Key Control Units.

I'm surprised at this as it seems a little OTT and just another way to make money.

It’s a way of making sure lost keys are deleted from the computer and can’t be made to work again, it’s a bit belt and braces but if you lost all the keys to a car or they were stolen chances are you’d be changing the locks and then programming in the new keys.

This deletes all old keys from the system and assuming you’ve changed the locks there is no benefit to programming the old keys back in.

There is a warning in MES that states once you start programming new keys any keys not present during that process will be locked out for good

Theoretically all you need do with an old key is put a new chip in it, which is fairly inexpensive

 

[s130]

I sort of understand the "Belts & Braces" but it is an overkill?

You have to have the body computer / security code to program a new key. On older models like Barchetta you have to have the Master Key.

To program a key (deleted OR new) it has to be present during programming so unless the thief has the Master Key or Security Code a deleted or any other key can't be programmed.

I think permanently barring missed keys is an overkill desgined to generate more income.

 

[AndyRKett]

I sort of understand the "Belts & Braces" but it is an overkill?

You have to have the body computer / security code to program a new key. On older models like Barchetta you have to have the Master Key.

To program a key (deleted OR new) it has to be present during programming so unless the thief has the Master Key or Security Code a deleted or any other key can't be programmed.

I think permanently barring missed keys is an overkill desgined to generate more income.

I wonder if there is some limitation in the system, that remembers the key no matter how long ago it was programmed but if programmed out it switched the key to being inactive in the memory of the immobiliser and then can’t be switched back a bit like the mileage can be increased via MES but not decreased. Maybe someone with the right software and know how could program it back in again? For 99.999% of the time reprogramming an old key probably isn’t a concern

 

[alfini0507]

My dealer supplied free of charge the cars code. They told me its policy now to supply the FOC. (Desira parts at Diss Norfolk) They could not have been more helpful and gave me hte code for all 3 Pandas.

......And so I shouild think as the car and its code number belong to its owner, not to them!!

A key case does not have the electronic insides and cannot be programmed. Its just a case.

I tried to obtain a key plip from an Italian supplier but it was a scam and I had to recover my money from pay pal. mI dont think mthey are available except from Fiat. I have been looking for many years.

Reprogarmming keys with MES is easy if you carefully follow the istructions and warnings. All Panda key transmitters are not the same and you cannot rely on getting another key and just reprogramming it.

Is there a chance you could help me find the "electronic card code" for my two cars... Only issue is I'm not from England... One car is Croma 2008 and the other one is Lancia Ypsilon 2004?

 

[varesecrazy]

Is there a chance you could help me find the "electronic card code" for my two cars... Only issue is I'm not from England... One car is Croma 2008 and the other one is Lancia Ypsilon 2004?

The rest of the UK has the same arrangements

 

[alfini0507]

The rest of the UK has the same arrangements

Unfortunately I'm a little further then the "rest of UK" and England as well... Southeast Europe, Republic of Serbia...

 

[AndyRKett]

Unfortunately I'm a little further then the "rest of UK" and England as well... Southeast Europe, Republic of Serbia...

you'll need to contact your local fiat dealer or Fiat of Serbia to see if they can obtain the cards for you. Very doubtful anyone in the UK is going to give a Code card to someone in Serbia, even if it was a car originally supplied in the UK.

 

[alfini0507]

you'll need to contact your local fiat dealer or Fiat of Serbia to see if they can obtain the cards for you. Very doubtful anyone in the UK is going to give a Code card to someone in Serbia, even if it was a car originally supplied in the UK.

It was bought in Switzerland... I'm the second owner...

 

[alfini0507]

you'll need to contact your local fiat dealer or Fiat of Serbia to see if they can obtain the cards for you. Very doubtful anyone in the UK is going to give a Code card to someone in Serbia, even if it was a car originally supplied in the UK.

Mate I did get a code for my Croma from local dealer but there is a problem with second vehicle Lancia Ypsilon... They cant find the code... Why not, I don't know, man just said there is a problem and software doesn't give any data for Lancia...

 

[AndyRKett]

Mate I did get a code for my Croma from local dealer but there is a problem with second vehicle Lancia Ypsilon... They cant find the code... Why not, I don't know, man just said there is a problem and software doesn't give any data for Lancia...

This is not like the radio code where someone can put the serial number into a piece of software and it spits out the code, both the key code and the chip code are unique to the car and allocated at manufacture. The only person who has them is fiat/Lancia. Your only option if you can’t get the codes if to speak to a vehicle lock smith and see if they can duplicate one key so you have two keys that the car recognises as being the same key. Assuming you want the codes to be able to order new keys.

 

[alfini0507]

This is not like the radio code where someone can put the serial number into a piece of software and it spits out the code, both the key code and the chip code are unique to the car and allocated at manufacture. The only person who has them is fiat/Lancia. Your only option if you can’t get the codes if to speak to a vehicle lock smith and see if they can duplicate one key so you have two keys that the car recognises as being the same key. Assuming you want the codes to be able to order new keys.

I gave man a chassis serial number for Croma and he found an electronic code for it I suppose thrue the software on his computer... The same thing didn't work for Lancia... I'm talking about the code that is sometime needed when using a diagnostic tool for unlocking some options on the vehicle...

 

[the green vanper]

For the FIAT models, the code is written somewhere in the FIAT computer system, the european dealers can extract it upon ownership proof.

Same should be with Alfa and Lancia, as as far as I know use the same computer system.

The PIN code can be also extracted from the BSI contents. For the moment I'm not aware (hopefully yet) which tool is needed to get the needed data from BSI.

 

[s130]

For general information on the 500X / Renegade and possibly later models from the Fiat/Stellantis stable the car's security code is not available to dealers or anyone else. The system uses what it called "Pass-Thru". For this you have to have the correct professional diagnostic kit (not MES) and a subscription/account with Fiat.

My understanding is that via the diagnostics kit the vehicle VIN is sent to Fiat servers. The servers look up the security code / hash then pass this back through the diagnostic kit to the body computer. Its all encrypted, nobody can see or has access to the security code, there is nowhere to input the code, etc.

 

[alfini0507]

All sorted out... Code from Fiat Croma delivered from the local dealer via VIN number and Code for Lancia Ypsilon sent from Portugal via VIN number too... Thanks everyone from this discussion...

 

[s130]

All sorted out... Code from Fiat Croma delivered from the local dealer via VIN number and Code for Lancia Ypsilon sent from Portugal via VIN number too... Thanks everyone from this discussion...

Great news for you and hopefully future good news for others in acquiring their vehicles PIN.