The 2zr-fe engine swap guide

[ArmstrongRacing]

OR.....

Someone could leave all of the immobilizer parts intact, tow the car to the dealership, pay the techs $200 to try their best.....and possibly get answers for the whole community. If they fail, no big deal and you disconnect the ECU.

[CTScott]

Originally Posted by ArmstrongRacing

OR.....

Someone could leave all of the immobilizer parts intact, tow the car to the dealership, pay the techs $200 to try their best.....and possibly get answers for the whole community. If they fail, no big deal and you disconnect the ECU.

There is a limited amount that Toyota techs can do. If you have the master key for the original immobilized ECM you can add new keys (so you could add a Yaris key to the XD ECM, if you got the XD with its original master key). Without the master key there is nothing Toyota can do (except replace the ECM and keys).

Beyond the dealership, it is possible to clear the existing transponder key data from the ECM (so that you can add new keys, as if the ECM is brand new), but that requires opening the ECM an desoldering and reflashing the EEPROM that stores the data.

[CrankyOldMan]

Originally Posted by CTScott

Beyond the dealership, it is possible to clear the existing transponder key data from the ECM (so that you can add new keys, as if the ECM is brand new), but that requires opening the ECM an desoldering and reflashing the EEPROM that stores the data.

Ooh! I hope it's a BGA package!!

[brushforhire]

Originally Posted by CTScott

There is a limited amount that Toyota techs can do. If you have the master key for the original immobilized ECM you can add new keys (so you could add a Yaris key to the XD ECM, if you got the XD with its original master key). Without the master key there is nothing Toyota can do (except replace the ECM and keys).

When I worked for our Toyota dealership we would wipe cars that lost all the keys all the time. Now some of the older vehicles you had to replace the ECM, but the newer stuff like this we would just wipe and reprogram new keys. I know the tech has to be a Master Tech under Toyota and they hook up the car to the shop computer and they have to get Toyota themselves to do a master reset like that.

Here is a TSB about this: Linky

[CTScott]

Originally Posted by brushforhire

When I worked for our Toyota dealership we would wipe cars that lost all the keys all the time. Now some of the older vehicles you had to replace the ECM, but the newer stuff like this we would just wipe and reprogram new keys. I know the tech has to be a Master Tech under Toyota and they hook up the car to the shop computer and they have to get Toyota themselves to do a master reset like that.

Here is a TSB about this: Linky

That doc is dated 2002. For the newer vehicles there is no such procedure, that I have ever seen documented.