ECM interchange '05 V70

Faust · Post by **Faust** » 08 Jan 2025, 16:10

This is probably answered here someplace, but I can't find it. Probably don't know the right search term. In any case, can ECMs be interchanged. In short, can a junkyard "brain" be used in another car? I seem to recall that they would at least need reprogramming.

Post by **scot850** » 08 Jan 2025, 18:22

If they can be reused, then they will likely need reprogrammed as they have Vin# information stored in them as well as information like mileage.

Neil.

dikidera · Post by **dikidera** » 09 Jan 2025, 00:58

Direct re-use, no. It needs reprogramming.

Post by **vtl** » 09 Jan 2025, 06:58

Blow your flash and EEPROM chips off with hot air and transfer to the donor.

Post by **jonesg** » 09 Jan 2025, 19:32

Faust wrote: ↑08 Jan 2025, 16:10 This is probably answered here someplace, but I can't find it. Probably don't know the right search term. In any case, can ECMs be interchanged. In short, can a junkyard "brain" be used in another car? I seem to recall that they would at least need reprogramming.

its a WORM board, Write Once Read Many.
Can't be rewritten,
VTL says swap the 2 chips , there are videos on youtube for DIY ,
myself I'd send the 2 ECM's to a service and have them do it.

Faust · Post by **Faust** » 09 Jan 2025, 21:52

Thank you. But, the car got sold to another while I wondering about it.

Post by **abscate** » 12 Jan 2025, 11:01

All Volvos 1999- in North America used VIN specific ECM, CEM, DIM/CDM