IS - 1st Gen (2001-2005) Discussion about the IS models up to the 2005 model

IS300- 2001 to 2005- Differences?

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Old 10-27-21, 06:54 PM
  #16  
Suprttec93
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Originally Posted by 2001SolarY
All the engines are the same from 2001 to 2005. Just do not use the harness from the doner car.
So I can use my 03 ECU and harness with the 01 engine I pulled ?
Old 10-28-21, 12:55 PM
  #17  
2001SolarY
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Yes you can. Security light means your system does not recognize the chip in your fob or key you are using. If it just started doing this. It may have lost the chip code. So you need to reprogram it back to the system with the master key that works or a Techstream.

Last edited by 2001SolarY; 10-28-21 at 12:58 PM.
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