Advice Please Re: Ecu? & Keys

[Davrav]

These days I use a small digital camera set on macro rather than a mirror.

Bonus is you get a record of any details.

Depending on where you stick it, that record could be criminal

Excellent tip though

[jps71]

These days I use a small digital camera set on macro rather than a mirror.

Bonus is you get a record of any details.

Depending on where you stick it, that record could be criminal

Excellent tip though

Great idea thanks :)

[jps71]

Quick update I have managed to view the ecu and it is model number 89780-42060.

I contacted ecutesting as was suggested but they do not have this part listed :(

So if anyone has any advice as to who else to contact please let me know.

Cheers Jim

[shcm]

Jim, that site with the Manchester mobile number, deals with part numbers starting 89780:

http://www.keyprogrammers.com/TOYOTAMOREINFO.html

I guess it really depends, how you want to play it. Not total familiar with the system but I would have thought the options were:

1. Leave the transponder pill near the ignition as you first suggested. That will probably work, but is a huge security risk, but probably not a problem in your part of the world.

2. Get new keys programmed into the immobilisation ECU (89780-.....), possibly with somebody like keyprogrammers?

3. Whether it is possible to reprogram the engine management to ignore anything from an immobilisation ECU and just run? I don't know whether this is possible here. It was on some systems many years ago - I wrote software to do it (in a professional capacity, before anybody starts! :D). I expect things have tightened up a fair bit since.

[jps71]

Jim, that site with the Manchester mobile number, deals with part numbers starting 89780:

http://www.keyprogrammers.com/TOYOTAMOREINFO.html

I guess it really depends, how you want to play it. Not total familiar with the system but I would have thought the options were:

1. Leave the transponder pill near the ignition as you first suggested. That will probably work, but is a huge security risk, but probably not a problem in your part of the world.

2. Get new keys programmed into the immobilisation ECU (89780-.....), possibly with somebody like keyprogrammers?

3. Whether it is possible to reprogram the engine management to ignore anything from an immobilisation ECU and just run? I don't know whether this is possible here. It was on some systems many years ago - I wrote software to do it (in a professional capacity, before anybody starts! :D). I expect things have tightened up a fair bit since.

Thanks for the info :)

Yes its not much of a risk leaving the transponder near the ignition up here:)

I have been searching for a way to disable the immobiliser but no joy yet.

A company say they can reprogram the ecu if I can provide suitable master keys with a Texas 4C transponder chip inside.

That would mean sending them the ecu if I manage to get suitable keys.

I have emailed (like they request for toyotas) the company with the Manchester number a couple of times but have had no reply

Cheers Jim

[IanXT4]

Just Googled your part number and ECU and came up with another "interesting" key company.

http://www.revtronic.com/index.php?option=com_content&view=article&id=139:ecu-immobiliser-free&catid=19:introscroller&Itemid=84

Possibly worth a phone call ?

To be honest as this technology is by bypassing security, I would only deal with a company in person.

I would want to see them program my ECU and give me the new working keys.

Only then I would part with any money.

[jps71]

Just Googled your part number and ECU and came up with another "interesting" key company.

http://www.revtronic.com/index.php?option=com_content&view=article&id=139:ecu-immobiliser-free&catid=19:introscroller&Itemid=84

Possibly worth a phone call ?

To be honest as this technology is by bypassing security, I would only deal with a company in person.

I would want to see them program my ECU and give me the new working keys.

Only then I would part with any money.

Thats one of the problems I have living in such a remote place most things have to be done by post :(

[R2 D2]

Quick update I have managed to view the ecu and it is model number 89780-42060.

I contacted ecutesting as was suggested but they do not have this part listed :(

So if anyone has any advice as to who else to contact please let me know.

Cheers Jim

You could get some new keys , get them cut and try this;

http://qcwo.com/otherdeal/Services/2001-2003-Toyota-RAV4-Immobilizer-Reprogramming

or do it yourself/find someone with soldering skills;

http://qcwo.com/technicaldomain/simple-immobilizer-smd-eeprom-removal-and-replacement

Hope this helps.

[jps71]

Thanks for the info :)

[shcm]

That's an interesting find R2D2

However, I'm amazed that Toyota have been so stupid. I thought storing such info in external EEPROM went out years ago.

Modern micro-controllers very often have internal EEPROM (or a page of flash memory emulating EEPROM), to which external access can be disabled. It usually applies to the internal program flash memory as well. It's a security feature to prevent anybody reading out your program (and in this case immobilisation codes as well) and reverse engineering your intellectual property. You can probably defeat it if you are really clever - in some cases you can etch away the chip packaging and probe the die - but it is not exactly that easy.

As far as I am concerned (from experience), I thought it was usually standard practice to to use a micro with internal EEPROM/Flash on any ECU concerned with security, not a standard external memory.

OK, it allows re-use of the ECU, but publishing this makes the vehicle so much more "nick-able". At least it makes it easier to sell on with new keys. I think it was very irresponsible of the person to "publish" the info on the web.

Mind you, it took a while for the Japs to grasp car security. They usually replied along the lines of "Why should anybody want to steal a car?"

[R2 D2]

That's an interesting find R2D2

However, I'm amazed that Toyota have been so stupid. I thought storing such info in external EEPROM went out years ago.

They probably reworked the ECU from an old model/design, would possibly explain why some of the 2001-2003 Rav4 ECU's are such a pain in the proverbial, mine still has MIL on and keeps throwing up codes no matter what you do.

OK, it allows re-use of the ECU, but publishing this makes the vehicle so much more "nick-able". At least it makes it easier to sell on with new keys. I think it was very irresponsible of the person to "publish" the info on the web.

Hmm....do you think I should remove the links (took alot of searching to find this info) and it doesn't take much to find this forum, and someone only send them as a PM if justified?

I'm tied between helping members out/not helping the villains? :!Removed!:

[shcm]

Hmm....do you think I should remove the links (took alot of searching to find this info) and it doesn't take much to find this forum, and someone only send them as a PM if justified?

I'm tied between helping members out/not helping the villains? :shutit:

To be honest I don't think it will make much difference, I bet you're not the first to find it.

Just to say, it wasn't a direct swipe at you for posting it either, but I apologise if you feel that way at all.

It's just I worked for a few years in the vehicle security area and that kind of thing still gets my "back up" so to speak.

Then again, the first generation of transponders (pill in key) were not exactly secure.

It's a pain for vehicle owners down the line when keys are not passed on or they go missing or things can't be re-programmed. It is done for a reason though. I'd rather have that problem than a tea-leaf problem.

[R2 D2]

Hmm....do you think I should remove the links (took alot of searching to find this info) and it doesn't take much to find this forum, and someone only send them as a PM if justified?

I'm tied between helping members out/not helping the villains? :!Removed!:

To be honest I don't think it will make much difference, I bet you're not the first to find it.

Just to say, it wasn't a direct swipe at you for posting it either, but I apologise if you feel that way at all.

It's just I worked for a few years in the vehicle security area and that kind of thing still gets my "back up" so to speak.

Then again, the first generation of transponders (pill in key) were not exactly secure.

It's a pain for vehicle owners down the line when keys are not passed on or they go missing or things can't be re-programmed. It is done for a reason though. I'd rather have that problem than a tea-leaf problem.

No apologies necessary, I didn't take it that way mate

It didn't even occur to me about the theft side of things until you mentioned it.

It would be nice if Mr.T could offer this service instead of hitting people up for a new ECU though, perhaps this info would never had been published on the net if that was the case.

Seems like the thieves would be going to alot of trouble to steal a ten year old car though ,I read somewhere, their latest trick is to break into your house/mug you to get the keys if they can't beat the car security. :censor: