problem in ECU corolla 2005 - Toyota Nation Forum : Toyota Car and Truck Forums

sarathrp88 · 01-24-2012, 07:36 PM

Ive been having problem with my ecu of a corolla 2005 s, i purchased it at ebay since it was cheaper there than in a shop, i just want to know what is needed to be programmed in the ecu is it the inmovilizer or the key? and can a person that programs keys can do it?

how to program it please.

hardtopte72 · 01-25-2012, 05:57 AM

You should not need to reprogram the immobilizer or key unless you replaced the immobilizer ECU, they key, or you have some other problem related to the immobilizer. What is your problem exactly.

If you did replace the immobilizer ECU then the dealer will have to reprogram the ECU and reseed the keys. This can only be done by a master tech at a Toyota dealer. A key place can not do it.

sarathrp88 · 01-25-2012, 08:30 AM

thanks for answering, I need to replace the ecu of my corolla 2005 I was a little expensive to buy in the dealer and decided to order it on ebay now I'm hoping that I get, and read in the forum they need to reschedule and I would like to know what I need to program, or as soon as the install in my car should run normally, or should I schedule the ignition key to the computer thanks

dorman68 · 01-25-2012, 09:28 AM

The 05-08 Corollas with AT trans have a recall on the ECU or PCM, I had mine replaced for free under recall.

hardtopte72 · 01-25-2012, 01:59 PM

Quote:

Originally Posted by sarathrp88

thanks for answering, I need to replace the ecu of my corolla 2005 I was a little expensive to buy in the dealer and decided to order it on ebay now I'm hoping that I get, and read in the forum they need to reschedule and I would like to know what I need to program, or as soon as the install in my car should run normally, or should I schedule the ignition key to the computer thanks

1. Why did you buy a new ECU? I am assuming you bought an engine and ECT( electronically controlled transmission) ECU.
2. Are you aware that there are around 20 different engine and ECT ECUs available for this car depending on a range of things. And if you pick the wrong one from eBay that you may have a car that doesn't come out of gear or shifts poorly or won't start?
3. Toyota recalled the engine and ECT ECU on a lot of these cars for problems. If you need one take it to the dealership and see if you can get a new ECU free.
4. If you did buy an engine and ECT ECU and managed to get the right one. And managed to get a working ECU then you do not need to reprogram the key or worry about that. It will start and drive like normal.
5. If you replaced the immobilizer ECU then you need to reprogram and reseed the key. This can only be done by the a master tech at a Toyota dealer.