Hey guys, after fighting with this process myself for hours on end, after getting it to work I figured I would make a writeup on how to do this.
Here's how to reprogram your car's engine immobilizer to program new keys in the event of lost keys or a swapped ECU.
I recently bought a 2001 LX470 from a junkyard with no keys and researched many options. I found the most popular way to virginize the IC900 EEPROM 93C56 chip on the ECU. I ordered the CH341a reader set from Ebay for about $18 and so it started. It did not work at first as many things don’t. That was followed by well over 30 hours of research and testing and only finding this method to work.
I will supply a link and download to writeup!
Writeup
Here's how to reprogram your car's engine immobilizer to program new keys in the event of lost keys or a swapped ECU.
I recently bought a 2001 LX470 from a junkyard with no keys and researched many options. I found the most popular way to virginize the IC900 EEPROM 93C56 chip on the ECU. I ordered the CH341a reader set from Ebay for about $18 and so it started. It did not work at first as many things don’t. That was followed by well over 30 hours of research and testing and only finding this method to work.
I will supply a link and download to writeup!
Writeup
