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View Full Version : Ford Fiesta MK6 1.6TDCI immo synchronization problem



buul
27th December, 2023, 02:26 PM
Hi friends,
I iave problem with Ford Fiesta MK6 1.6TDCI. After dead abttery car won't start. Socket in cluster is resoldered, ther is communication with ecu. There must be problem with immo sync.

Immo red led on cluster turns on and after a few seconds goes out.
Immobilizer shows communication fault to PCM.

Cluster is with hc9s12h256 1k78x motorola uP
ECU edc16c34 with 95160 eeprom

My friend tried to sync it with autel but told me that there is no key data in ecu memory

So please someone help me with immo sync.

Ecu and cluster read in attachment.

Br,
BuuL

kiszka
27th December, 2023, 09:23 PM
Hi friends,
I iave problem with Ford Fiesta MK6 1.6TDCI. After dead abttery car won't start. Socket in cluster is resoldered, ther is communication with ecu. There must be problem with immo sync.

Immo red led on cluster turns on and after a few seconds goes out.
Immobilizer shows communication fault to PCM.

Cluster is with hc9s12h256 1k78x motorola uP
ECU edc16c34 with 95160 eeprom

My friend tried to sync it with autel but told me that there is no key data in ecu memory

So please someone help me with immo sync.

Ecu and cluster read in attachment.

Br,
BuuL

test the file and report back to me
https://mega.nz/file/JmhiQQTK
(https://mega.nz/file/JmhiQQTK)If it doesn't work automatically, follow the errors that appear

buul
28th December, 2023, 10:29 AM
Thanks for fast answer and help. I will check it today and give you response.

atayok
29th December, 2023, 07:43 AM
If not, write to me.

buul
30th December, 2023, 06:46 PM
So I've tested the new ecu file but the car still won't start. I will check on tueaday what errors are now. Thanks anyway!

neilp1990
30th December, 2023, 07:51 PM
i have known on a few of these also for a couple of wires break going to one of the ecu plugs, causing the clocks to not communicate with the ecu

buul
3rd January, 2024, 10:58 AM
Thanks for the hint but the installation is ok.

buul
3rd January, 2024, 11:28 AM
So after first try the car still won't start and there were this faults: U0073 (CAN bus malfunction), P1602 ( immobilizer/ecm communication error), P1603 (eeprom malfunction/id number unregistered).
After clearing errors few times there is only one left P1603.

Immo light now turns off but car still won't start.

Br,
BuuL

buul
16th January, 2024, 11:01 AM
Thanks for the second file. It worked like a charm!


test the file and report back to me
https://mega.nz/file/JmhiQQTK
(https://mega.nz/file/JmhiQQTK)If it doesn't work automatically, follow the errors that appear