Citroen C1 (Aygo) immo problem

[kanzus]

Hello,
I have a citroen C1 (as Aygo toyota) not start caus immo problem when diagnos it.
Please could you help me correct immobox and ecu dump attached please ?

Thanks in advance.

C1 dump-keys-24c04immobox-95040ECU.zip

[kanzus]

Any Aygo C1 107 specialist here for help please !

[kanzus]

Hello,
I try to correct dump by using paired dumps I had taken from working peugeot 107, so I added keys in immo box and correct synchro bytes in both dumps.

Could anyone check this work please and tell if good ?

Thanks in advance.

[koncimobil]

Hello,
I try to correct dump by using paired dumps I had taken from working peugeot 107, so I added keys in immo box and correct synchro bytes in both dumps.

Could anyone check this work please and tell if good ?

Thanks in advance.

Hi,
The dump is ok with 2 keys 33 & 53

[keysph]

It's becoming a common problem of this cars.
Check wiring connections to the dashboard. Also take off all dash and check the wiring from the left pillar, you got some box there (water can reach there also in some cases).

[kanzus]

Hi,
@koncimobil:
When I diagnose actual values for immobox with latest files I post, everything is OK, both keys and codes are recognized and no actual immobox DTC stored.
Thanks for confirmation.
On the other hand, engine start for a second and stop, then DTC is present on ECU :' no communication between ECU and immobox'
Tryed to synch 'pair' ECU and Immobox with pp2000, wait dor 30mn then still same, no starting engine.
I can enter and see actual values on ECU, RPM ok When starting engine ...

Could you check for me please also synchro bytes between Immobox and ECU ?

@keysph:
OK, will check and clean all connectors behind/on dash and report.

Thanks for help.

[keysph]

If the car starts and than stops check all the connections I told you about.
If there were a anomaly in transponder or immobox or ignition coil or ECU synchronization the car should not start at all. You can take out the blade from the key and try to start the car without transponder and you will see that will not start at all.

[kanzus]

If the car starts and than stops check all the connections I told you about.
If there were a anomaly in transponder or immobox or ignition coil or ECU synchronization the car should not start at all. You can take out the blade from the key and try to start the car without transponder and you will see that will not start at all.

Cleaned all connectors on the left side and still not work, car start for 1 second and stop.
I have no problem with keys and immobox (No DTC fault code present in immobox), but ECU DTC is "faulty communication between ECU and Immobox". I make pair ECU using PP2000/Diagbox, wait for 30mn, it say "ECU Paired successfully" but same symtom, it start for a second and show fault code 'communication faulty ECU/Immobox).
Tryed with second hand ECU and still same problem.
Could you please advise me what pins to connect using new wires to make new connection between immobox and ECU (I cannot find pinouts for immobox/ECU).
Did the power steering module can cause fault and prevent car to start ?