reman toyota ECU

Michael Owner/Technician Alaska Posted   Latest  
Updated
Programming
2007 Toyota RAV4 2.4L (2AZ-FE) 4-spd (U140F) — JTMBD33V975102643
Harsh Shifting

I worked on this over a year ago, so this is mostly from memory. I verified shift solenoid tie up caused by UCU. Customer has a reman, supposed plug & play ECU that was ordered by another shop that had the car before he brought it to me. The car will not start with the reman ECU. I called the rebuilder, and was told that particular ECU would need to be programed. 

I saw a post from Bill Kenel concerning using used a 2012 Toyota tundra ECU. Will the same process of jumping pins 4 and 13 work on a 2007? The customer still hasn't had this car repaired because he doesn't like the dealer. I have an Autel 908, but never tried a vin rewrite. Where is that function in the tool? Thanks for any advice

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Erik Diagnostician
Florida
Erik
   

VIN read and read-write is under ECM module. And if it has no Immobilizer you will be ok but normally reman I’m not sure if they reflag them but if it is like getting a new ECU it should be in key write mode just use the two keys you will need to start it. Normally if it’s has keys programmed to it it’s a re-seed or reset with a factory scan tool Techstream issue with two new keys or blank fob…

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Erik Diagnostician
Florida
Erik
 

Sorry and yes TC to CG to Handshake for 30min or more with key on engine off.

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Helpful
Paul Mechanic
Illinois
Paul
 

Just curious, but I don't think immobilizer is same as programmed? Does rebuilder mean when he states it need to be programmed as in there are no operating software for engine to run or just learn new keys?

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Taylor Owner
California
Taylor
 

Just a thought make sure it is not a flagship 1 reman I have been burned in the past by the junk the pass off as reman or correct part numbers. Should just have to write vin and learn immo like you said did one couple months ago pretty straight forward wasn’t using autel but Toyota are not bad using aftermarket tools usually

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Michael Owner/Technician
Alaska
Michael Update
 

I have been unable to contact the customer, so I guess I will never know if it would work or not. Thanks for all the help

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