Edc16c31 V70 ECM-7700 dtc After egr off

[rob h]

Hello guys,

Edc16c31 V70 Volvo 2007 2.4D

yesterday i have tested 2 different egr off files.
Both give me ecm-7700 dtc. (this could be a cem, ecm missmatch.)
Yesterday, the car appeared fine, today it runs not well. (checksum fault is my guess)

I used Magicmotorsport bench option.
Maybe the checksum is not made well, using the bench option.

Could someone fix the crc, and check which egr solution is best suited.



Next Volvo,I will try kess, like i used before. Maybe that is a better crc tool for these.

Thanks guys

[bodzio012]

In my opinion DTC 7700 not do it limp mode. Probably not good egr off or try disconnect plug from egr

[bodzio012]

Attach your dumps

[rob h]

805909

Here they are.
And i did not unplug anything yet.

[Digital Under]

volvo this car completely on CAN bus
since your file is not correct
therefore ecu generates errors if the egr valve is disconnected or electrical part is faulty

just need to properly disconnect egr valve in dump and even with connector disconnected you will not have any errors

[Krzysztof Bryl]

805909

Here they are.
And i did not unplug anything yet.


Hi,
both solutions are wrong, one of them is solution from swiftec.

[Babos]

7700 it is dtc not correct checksum(from factory). She not to do anything!

[pike]

Hello guys,

Edc16c31 V70 Volvo 2007 2.4D

yesterday i have tested 2 different egr off files.
Both give me ecm-7700 dtc. (this could be a cem, ecm missmatch.)
Yesterday, the car appeared fine, today it runs not well. (checksum fault is my guess)


7700 -> P0601 Internal Control Module Memory Checksum Error

[rob h]

Yes, Both solututions come from a tool.
I will try a different solution.
Thanks guys

[eimantuxx]

Pass PM after thanks+rep.


805994