Replacing the ECM does it need to be programmed to my car?

Tiny
CHRISRYALS29
  • MEMBER
  • 2001 CHRYSLER CONCORDE
  • 3.2L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
I have to replace the engine computer. I bought a used one with the same part number. My mechanic asked me if my key to the car has a chip or not, (I have no idea). He's saying if it doesn't have a chip in the key, he can just remove the old one a just plug the new one in. Car listed above is an Lxi. Does that car have a chip key? Is it true what the mechanic is saying about the chip?
Sunday, September 26th, 2021 AT 6:15 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The ECM/PCM will needs to be programmed to your vehicle.
Without the reprogramming or relearning process the vehicle will not recognize the new part.

The programing of this will require a special scan tool.

I attached the programming procedure for your reference.

Please let me know of any questions.
Thank you.

https://www.youtube.com/c/2carpros/featured
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Sunday, September 26th, 2021 AT 6:47 PM

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