xsara picasso fob

[pianoman58]

Can anyone help with new fob programming procedure ?? bought new fob from citroen with vin but can't get it to program in. With pp2000/lexia the bsi is seeing "unidentified fob transmission" but I cant get it to accept the fob onto system.
I am using following: turn ign on, Press "lock" for 5 secs, turn ign off, leave for 5 secs then test, but no success.
Anyone got any better ideas
Car is 2004 and separate transponder
Thanks

[obdmaster]

Try programming in transponder again or new transponder with new remote fitted you will need vehicle security code. As im sure the remote locks to car same time seperate transponder does m8. then follow onscreen instructions in lexia

[bazbaz]

XSARA, PICASSO, XANTIA, SYNERGIE, EVASION
CENTRAL DOOR LOCK (1 BUTTON PLIP KEY)
Procedure
1. Ensure that all the doors are unlocked using the key.
2. Press and hold the remote button until the LED stops flashing.
3. After releasing the button, the LED will light constantly.
4. Press the remote button once, and the LED will extinguish.
5. Open the door and hold the remote near the Ignition switch, and press the button once.
6. Now turn the ignition ON, and wait 10 seconds then turn the ignition OFF.
7. After 5 seconds, the remote should now be operating.
CENTRAL DOOR LOCK with DEADLOCKING (2 BUTTON PLIP KEY)
Procedure
1. Ensure all doors are unlocked using the key.
2. Press and HOLD the large remote button while the LED flashes continuously for 20 seconds. After 20 seconds press the small deadlock button once while still holding the large button.
3. The LED will stop flashing.
4. Release the large button and the LED will light constantly.
5. Press the large button one time, and the LED will go out.
6. Open the door and hold the remote near the Ignition switch, and press the large button one time.
7. Now turn the ignition ON, and wait 10 seconds then turn ignition OFF.
8. After 5 seconds, remote should now operate.

you could try the above not too sure if it will work though ?

[pianoman58]

Thanks Obdmaster: I programmed in new transponder, there is no mention of fob programming in lexia or in mvp, only key programming. Also 7936 is separate, so no connection with fob. there must be another procedure to do fob, any Citroen techs out there with the knowledge.

[smokey08]

Did you precode the transponder?

[pianoman58]

It comes precoded, engine starts perfectly.

[smokey08]

Ok so it must be correct if you ordered it in the key. Maybe try a BSI reboot then try and sync it again (You know the procedure where you disconnect the battery leave for a couple of mins then connect it back up and turn the sidelights on through the window to wake it up)

[neno11]

Because of your problem I did an experiment with loging in 2 existing keys with SBB programmer. I also have Xsara Picasso from 2005. One is transponder key without remote and second with remote.
1. I tried log in first key only and remote on second didn't work. Synchronisation failed also.
2. I tried log in second key only (remote PCB was out). Remote worked.
My conclusion is that's my remote is attached to second transponder and that datas are writted in immo eeprom in BSI.
I think that it isn't so simple and neither reset will not help.
Anyone who know something more would be helpfull.

[pianoman58]

Was your remote key a separate 7936 transponder

[verica]

you must add transporder to remote and than program on the car folow the instruction on sbb work 100%

[alejuz]

YOU need to learn the keys to the lexia, PP2000 or any equipment for it, always begin the keys that are used,

[neno11]

Yes piano, my remote is separate from transponder PCF7936, chip in remote is Philips 7922V18 if you want to know.
Verica, I'll try tommorow remote hold near transponder during programming, we will see.

[radiosolutions]

m8 had this problem before, was told if you purchase a key with transponder, will code and run car perfectly. if you purchase a remote it needs to be complete with the transponder,was told that info in this transponder is different ,so if you use a normal transponder will not work


hope this helps

dont forget to press thanks

[verica]

working 100%

[neno11]

I tried but it isn't succeed.
So I added with SBB only master key but with remote sticked on transponder key case. After turn ignition on, then off SBB asked to sinchronize remote by holding close button for 10 sec., and then off but nothing.
So I agree with others, it must be done with diagnostic device but with possibility to add remote, not only transponder. SBB can add transponder to car but remote can not, only resync.
In that manner, can someone suggest good universal device for adding remotes to cars, as well as used remotes.

[verica]

did your remote working do you test it on rf tester does it give 434mhz

[neno11]

Remote didn't work attached to first transponder (master key) but attahed to second was work. If you followed me till now it was experiment with normally both working keys but this time with SBB added only one key (first, transponder) with remote from second holded close to first key.
Conclusion is: this remote don't work with SBB added first, transponder key, but with second, his transponder perfectly does. Am I clear now?

[pianoman58]

Ok DK Brothers, I finally got to the bottom of this, Radiosolutions was correct, and neno11 was on it but the new fob transponder data was incorrect.
After much head scratching and comparing 7936 and the Bsi configuration data, I found that in the user ( remote? ) lines of the 7936 hitag2 data there was no bytes to tell the Bsi what remote to be allowed to be accepted, so although it could see the valid remote RF transmission on the Lexia it couldn?t let it be registered.
So i got another new remote, read the transponder data with hitag 2 programmer and there was the missing data from the user lines, telling the Bsi the type of remote RF transmission to expect and to let it register. I don?t know how to find out whether the remote pcb is actually matched up to the 7936 data before it is packaged and sold, or the 7936 tells the Bsi to accept the next correct type of RF transmission it receives and then locks that remote to that car. So even though the 7936 is standalone it still has to be pre-coded with the remote info to allow door opening ( same as the Renault keycards ). This car is 2004 Xsara Picasso with part No 6554RF remote, and in the configuration of the Bsi, the remote type is 07 CA, these bytes also show up in the user3 line of the hitag programmer
If some clever brother on here knows if the user 0,1,2,3 lines in the transponder are not matched to the particular pcb that they come with or the immo info in the top 4 lines , tell me and i?ll post them up so they can be written to a new 7936 so used remotes can be re-used.

Thanks to all who posted with info which helped me fix it,

Does anyone know of any books or documents on hitag2 that will help with understanding this system

[paul_12345]

There was talk about PSA remotes in some thread here I think.

I think every PSA remote is matched to the transponder at the factory, so no way of reusing remotes or even replacing lost transponders from the remote.

[obdmaster]

There was talk about PSA remotes in some thread here I think.

I think every PSA remote is matched to the transponder at the factory, so no way of reusing remotes or even replacing lost transponders from the remote.

As far as im aware new transponder with new remote. program in at same time.

otherwise when ordering from 3dgroup etc you would have to give them chassis no. and you dont.

Might be wrong though. lol

[paul_12345]

As far as im aware new transponder with new remote. program in at same time.

otherwise when ordering from 3dgroup etc you would have to give them chassis no. and you dont.

Might be wrong though. lol

I mean their system seems to be the remote has a code (possibly encryption code??) which needs to be entered into the tranponder, then when you program the transponder your not programming the remote as such, but the bsi will take the data from the transponder once programmed which then gets used to work the remote (or possibly decrypt the signal)

So this is why you can't use another transponder as you dont know the code from the remote to enter into the tranponder for programming and the tranponder will get locked so you can't retrieve it unless you can unlock it.

[neno11]

I think the quickest way to solve your problem is to dump immo eeprom from the car and insert that file in hitag2 when program transponder and remote. With it you'll get password (ISK/RSK lo hi) and other data which must match in immo and remote. With this file, new ID, maybe with some byte changes you'll write new transponder. This changed file must be upload back to eeprom.
The problem with used hitag transponders is you can not read it without password/crypting and can not change OTP memory in it, but you can replace it by resoldering with new one blank and then program like new key, but anyway you'll need dump from car to mach.
For example i can't see any hitag2 data of my normal working remote 7936 Xsara Picasso key except ID of transponder because is hided.
How to configure dealar key by hitag2 to learn from immo that is another question and is it possible withot other data i don't know.

[paul_12345]

small test for anyone thats going to program a new remote key.

Read the transponder and write this data into a new blank transponder, then try programming the new tranponder with the remote.

If this works you know the tranponder is matched to the remote and that the remote isn't matched to the transponder ID etc (Which I guess it isn't)

If the above works then you know you might be able to find the location in eprom which stores all the data you need to reuse a remote, although it would mean reading the eprom on the car the key came from.

Another test if the above works once the cloned transponder has been programmed use the key and remote a few times, turn ignition on/off a few times, then clone another transponder and try programming it with the remote - if this works you know the code doesn't change etc.

[igorr]

As far as im aware new transponder with new remote. program in at same time.




this is correct always must be new transponder+new remote
once I have had coustomer who lost transponder from key(peugeot 206) only had remote who was working I programe new transponder but remote stop working and after couple hours traying to sinhhronize remote I give up and program new

[obdmaster]

this is correct always must be new transponder+new remote
once I have had coustomer who lost transponder from key(peugeot 206) only had remote who was working I programe new transponder but remote stop working and after couple hours traying to sinhhronize remote I give up and program new


It also seems like paul12345 said that the remote and transponder are matched together when manufactured.

As my m8 says he nicked transponder from one new remote for other job replace it with a psa id:46, but then remote didnt work.

What a funny system they are:manuflag: