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Gintas
23rd August, 2019, 06:09 AM
Hi,

Need ori file for Volvo xc90 Denso ecu, ecu in car don't show DTC, maybe DTC area removed.:peaceful:
Denso ecu No. 279700-9170

Files from car ecu in attachment.

Thanks in advance
Gintas

bobolin4o
23rd August, 2019, 08:18 AM
Disconnect the MAF and look if have or not error about it!
I'm waiting for response!

Gintas
26th August, 2019, 08:00 AM
Disconnect the MAF and look if have or not error about it!
I'm waiting for response!

If disconect MAF, ECU have p0110-00 and p0100-00 DTC

WBR
Gintas

bobolin4o
26th August, 2019, 09:43 AM
So, i don't have original file, but for sure the DTCs are not touched.
What problems you have with this car actually?

Gintas
27th August, 2019, 08:14 PM
So, i don't have original file, but for sure the DTCs are not touched.
What problems you have with this car actually?

Engine start, after 30-40 sec. swith on battery lamp, some time after check engine lamp on, if read dtc in engine dtc don't show, but if clear engine dtc, lamps go off, alternator voltage about 13,8-14,5.

bobolin4o
28th August, 2019, 06:55 AM
Denso ECUs are strange... maybe you must to make more ignition cycles without erasing the errors and finally they will be confirmed and stored.
Which tool you use for diagnostic?
Some codes are not shown through EOBD standard, but can be cleared...

Gintas
28th August, 2019, 10:02 PM
Denso ECUs are strange... maybe you must to make more ignition cycles without erasing the errors and finally they will be confirmed and stored.
Which tool you use for diagnostic?
Some codes are not shown through EOBD standard, but can be cleared...

I first read dtc with launch, after with Vida, same situation.

bobolin4o
29th August, 2019, 06:01 AM
Did you read the DTCs from the Automatic transmission too?

Gintas
29th August, 2019, 07:58 PM
Did you read the DTCs from the Automatic transmission too?

Car drive out, solved. Was damaged alternator regulator, after this in engine ecu was killed linbus IC tja1020.
Thanks for support Bobolin4o :thrasher: