What component holds the electronic VIN?

I think ECU and ECM are terms for computers and vehicles and other things We have many ECUs and/or ECMs in the Prius. You want to know which one generates and stores the mileage for the display that you see for total mileage I have no idea which module that is but I will say this I don't think you can just take that module out and plug it into another car and everything changes over I don't think it works exactly like that I think that computer has to be able to talk to the other computers and to make that happen something has to be done with software firmware etc that regular people aren't going to accomplish easily. And removing these ECUs and ECMs at least from the body behind the dash Man what a pain And if it was just for changing the mileage I wouldn't even waste my time pretty much any generation two Prius that you see that doesn't have 200,000 mi on it You need to take a close look at what you're looking at the whole situation and that's just as bad as 350k. So when I see generation 2 Prius today in 2023 with 93,000 mi on them I generally expect I'm going to have a whole lot of things going on just because of the time It may be nice that the seats in the pedals aren't worn out but all that sitting certainly has not been good.

 

So your pieces of wrecked car car that you get electricity from doesn't have any VIN# visible anywhere? You must live an interesting life... Your posts are always memorable, or at least that's what my friend says...

 

RIGHT.
Does that "friend" steal cars for a living ??

 

And I think your posts are OBNOXIOUS because they are hard to read and are an insult to ALL
of the other users of the forum.

But you don't seem to care.
Why is that ??

 

What color is that kettle, anyway?

 

I much prefer Tombukt2.

 

According to Google AI:

The following Toyota Prius control modules have a stored VIN:

• Engine Control Module (ECM)
• Transmission Control Module (TCM)
• Anti-Lock Braking System (ABS) Control Module
• Electronic Brakeforce Distribution (EBD) Control Module
• Vehicle Stability Control (VSC) Control Module
• Electronic Power Steering (EPS) Control Module
• Airbag Control Module
• Body Control Module (BCM)
• Instrument Cluster
• Navigation System

The VIN is stored in the EEPROM (Electrically Erasable Programmable Read-Only Memory) of each control module. The EEPROM is a type of memory that can be erased and reprogrammed. When you replace a control module, the VIN must be programmed into the new module. If the VIN is not programmed into the new module, the vehicle will not start.

The VIN is also used by the immobilizer system to prevent theft. The immobilizer system is a security feature that prevents the vehicle from starting if the correct key is not present. The ECM communicates with the immobilizer system to verify that the key is valid. If the VIN is not programmed into the new module, the immobilizer system will not allow the vehicle to start.

If you are replacing a control module in your Toyota Prius, it is important to have the VIN programmed into the new module. You can have the VIN programmed by a Toyota dealer or by a qualified automotive technician.

 

So I'm guessing text stream can do it if you have the real version and all the features like the dealer like my machine could probably do it if I had the dealer login which I need to get on that I mean for the online portion of the login like when text stream turns on and tries to go online You need a dealer code I've got a buddy that works in the parts department I need to go talk to him about that and see what he says.

 

I would GUESS that the hybrid control, immobilizer, and smart key (certification) ecu's have VIN.

ECM does not (you can plug and play an used Gen2 ECM and VIN on scantool never changes).

Posted via the PriusChat mobile app.

 

I am guessing that Google AI cleverly made that long list of VIN-holding ECUs by glomming together a lot of things it 'read' that mentioned ECUs and VINs.

The repair manual probably indicates which ones really do, but it would take a lot of piecing together from different places.

 

My dad used to say, "Small things amuse small minds" which took me a while to truly understand the depth of that saying.

Grammar is the codification of an agreed standard so that everyone can put together words in a uniform manner once these rules have been learned. The more one knows and understands these rules, the more everyone else can understand the message in the least ambiguous way. The sole purpose (in my opinion) is clear and concise communication. If one writes with poor grammar, and through that, fails to communicate then what purpose does that serve?

If one chooses to abandon that codification, for whatever reason, they stand it to be not understood or even worse just ignored.

I would advise against writing poorly just for the fun of it.

Some people, of course, do not choose to write poorly, but for whatever reason they just do not know the rules.

I don't know what challenges (and I presume there are some) any one person might have in writing an incomprehensible message but rather than just grump about it, I for one would be happy to offer a select few help with proofreading and offering revisions, via PM, of course.

 

It changes the displayed mileage The real mileage may be stored in other modules and that's how they catch people changing displays and trying to say their car has only 124,000 when it's got 240 so that mileage may be stored in a few places just for this reason. I don't know why they're so big on that We used to change pedometers in cars and on people last we just shrug our shoulders and it wasn't for the mileage it was because of speedometer went bad or the tachometer didn't work of the gas gauge didn't work and nobody was taking apart clusters then to replace individual pieces It just changed out the cluster oh well. I mean when I look at a car I look at the seat bottom where your butt goes and the pedal pads and the carpet that's a dead giveaway very quickly even if it's been cleaned and messed with there's your mileage very quickly flat seats are a dead giveaway where fat butts went and worn out pedal pads or where people ride the brake and things like that

 

If you haven't swapped fenders, a VIN label is on fender lip, probably on both fenders.