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sunduk112
6th February, 2013, 09:40 PM
i do dpfoff after write ecu car run and working good, after in dash burn red tringle. diagnostic show errors i not like dtc not correct chek summa in ecu!! i read and write with fgtech2
car is volvo v70 2.4 D5 2007 automatic gb.
how i do this job witout this dtc to cheksumme?
p.s i befor do volvo xc90 all be good!
edc16
0 281 012 103
1037 40 0203
thank you
Best regards.

darius89
6th February, 2013, 09:49 PM
Does your car goes in limp mode ??? Or you have just error ???
Did you find problem??
I have same problem with s60 2,4 2006 year. Customer will come back next week.

sunduk112
6th February, 2013, 10:11 PM
hi no car not in limp in just moment i tomorrow back car and customer do test drive!
i have errors and problem not solved!

http://i053.radikal.ru/1302/5b/089863c44888t.jpg (http://radikal.ru/F/i053.radikal.ru/1302/5b/089863c44888.jpg.html)

sunduk112
7th February, 2013, 06:44 AM
if found to other forum.

Any software update / remap can be detected. More than likely the ECU will throw up "CEM-1F00 ECM SOFTWARE, FAULTY SIGNAL" or "ECM-7700". Looks like both are related to CRC mismatch between what a diagnostics system expects to see and what is actually there. The ME7 system and diseasel equivalent is quite clever and if anyone says they can hide things like remaps, they are more than likely wrong and not telling the truth.

IIRC the 7700 code is alert the dealer or garage that there is different software on board than expected so that they don't just drop an update on the ECU and wipe the map.

Why do you want to make the remap harder to trace? To hide it from insurance? If so, if anything goes wrong (accident wise) and you have not declared the mod you could (more likely will) be in a world of hurt and could run the risk of your insurance being voided.

darius89
7th February, 2013, 08:08 AM
But why 2 volvo's goes ok, but third have that error for me..........

easytech
7th February, 2013, 03:11 PM
Depends on software versions and year.
Checksum is also in CEM. This cause the error.

darius89
7th February, 2013, 06:49 PM
Looks like I solved that problem today. After 2 hours of driving , start, stop , start engine, again driving......no more errors . tomorrow customer come back to scan again to see if everything ok

technic
7th February, 2013, 07:32 PM
And what was the solution?

Sent from my HTC Desire S using Tapatalk 2

darius89
7th February, 2013, 08:59 PM
clear errors, and reset all adaptations before start reflash.

technic
19th February, 2013, 07:27 PM
What adaptions did you reset? You said all, do you mean all under Advanced/ECM in VIDA?
Did you use VIDA?

darius89
19th February, 2013, 09:55 PM
What adaptions did you reset? You said all, do you mean all under Advanced/ECM in VIDA?
Did you use VIDA?

Yes, all under Advanced/ECM with VIDA