MAZDA3 p1603

[janusz21]

Hello someone have can repair ori edc16 0281011534
car start but have fault "P1603 eeprom data corrupted" and ecu in limp mode

[rafal]

what is history of car? dpf removed?

[janusz21]

can anyone check the crc file 95160eprom

[MartiLer]

read the dashboard dump.

[kiszka]

..........

[janusz21]

THIS dash bin

[janusz21]

car start ok only ecu in lip mode max 3000 obr

[janusz21]

Thanks for help solved full bdm dump, and synchro to dash

[websergei]

Hi!
Could you please help to repair corrupt Eeprom? (DTC: P1603-EEprom malfunction; P1187-variant selection)
Mazda 3 - EDC16C3.

I have eeprom read with BDM 100.


Or may be a Full BDM for ECU: 0281011534 3M61-12A650-AC ?

[kiszka]

Hi!
Could you please help to repair corrupt Eeprom? (DTC: P1603-EEprom malfunction; P1187-variant selection)
Mazda 3 - EDC16C3.

I have eeprom read with BDM 100.


Or may be a Full BDM for ECU: 0281011534 3M61-12A650-AC ?

need more info
is it a car
with this defect you have received whether you have a different original ecu eeprom reading

https://www.digital-kaos.co.uk/forums/showthread.php/644013-Mazda-3-synchro-ECU/page15

[websergei]

need more info
is it a car
with this defect you have received whether you have a different original ecu eeprom reading

https://www.digital-kaos.co.uk/forums/showthread.php/644013-Mazda-3-synchro-ECU/page15

Well.
Mazda 3, 2004 - EDC16C3.
Brief story:
The owner of the car decided to change ECU, he desoldered eprom from original ECU and placed it to another one. Problem wasn't solved. Then he decided that I would have this car repaired. I found the problem was in CAN wiring, I repaired CAN. Then I returned Eprom to original ECU. Now diagnostic scanner can connect with ECU, engine starts. But I have "P1603-EEprom malfunction", when I start the car - "P1187-variant selection" also appears. And there's DTC about Injector codes problem and I can't write them (I tried different diagnostic scanners).

I just think the eprom is corrupted. One of the way to repair it I think is may be to find a good eprom and to place my synchro into it. Or what can we do?
P.S. In post #9 I uploaded eproms from my car.

[kiszka]

Well.
Mazda 3, 2004 - EDC16C3.
Brief story:
The owner of the car decided to change ECU, he desoldered eprom from original ECU and placed it to another one. Problem wasn't solved. Then he decided that I would have this car repaired. I found the problem was in CAN wiring, I repaired CAN. Then I returned Eprom to original ECU. Now diagnostic scanner can connect with ECU, engine starts. But I have "P1603-EEprom malfunction", when I start the car - "P1187-variant selection" also appears. And there's DTC about Injector codes problem and I can't write them (I tried different diagnostic scanners).

I just think the eprom is corrupted. One of the way to repair it I think is may be to find a good eprom and to place my synchro into it. Or what can we do?
P.S. In post #9 I uploaded eproms from my car.


https://mega.nz/file/9zQSyK7D
here's a 100% example of how to damage an ECU
test the file and let me know how successful the repair is
and don't do such stupid things anymore, because in real life such a repair is expensive

[websergei]

test the file and let me know how successful the repair is


Kiszka, thanks

P1603 dissapeared. DTC about injector codes also dissapeared. No any other DTCs.
And after 5 minutes I get "P1187 ECM variant selection" and "P1639 ECM programming" and "limp home" mode.

Is there any other possibility?

[Joel94]

906265 Please Can you help me thank mazda3 2.3