Where is the ECM located?

Tiny
GBDORN
  • MEMBER
  • 2017 FORD FOCUS
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 55,000 MILES
Are the plugs hard to remove?
Thursday, September 30th, 2021 AT 2:31 PM

11 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
I am attaching the info below on the PCM and spark plugs. I assume by plugs; you mean spark plugs.

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

If you mean the connectors that are on the PCM then they just lift the lock and will come off pretty easily.

Please see all the info below on this and let us know if you have other questions. Thanks
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Friday, October 1st, 2021 AT 2:11 PM
Tiny
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I was mistaken my daughter's car is a 2012 Focus. I found ECM and the plugs were impossible to remove
.I finally remove to old ECM and a dealer installed the new one. When I turn the nothing happens. Can I program the key to the computer myself or can I take the key to a dealer with the ECM number?
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Friday, October 1st, 2021 AT 3:12 PM
Tiny
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Okay. On this vehicle that is not going to make a difference as it was pretty much unchanged in this respect from 2012 to 2017.

So, to program the keys you will need to have this done using a scan tool that is capable of doing it. It does not have to be a dealer but clearly, they can perform it easily.

They will not need the PCM number to do this. They will be able to just hook their tool up and run through the process and have them programmed. See below for the details.
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Friday, October 1st, 2021 AT 3:45 PM
Tiny
GBDORN
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I put everything back together earlier I gave the ECM number to 2CarPros.
Would it be possible for you to retrieve that part number in previous email?
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Friday, October 8th, 2021 AT 11:17 AM
Tiny
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Unfortunately, we don't have a record of you posting other info. Is it possible it was under a different account?

Or are you saying you replied to the email that gets sent to you with this link in it?

If you provide that screen name, I may be able to find it. Let me know if you have other questions or if you can find that. I will need exact spelling. Thanks
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Friday, October 8th, 2021 AT 11:54 AM
Tiny
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What scan tool will I need to try to program my key to the ECM. Cannot find a locksmith in my area to respond. My daughter contacted the seller and she was given the part number.
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Saturday, October 9th, 2021 AT 3:45 PM
Tiny
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The options are endless for ones that are capable of doing this so I would just do a Google search for scan tools that can program keys and you will find ones in all price ranges.

However, if it were me, having the vehicle towed and keys programmed will be cheaper in the long run. So, unless you are going to use this frequently, it is not worth buying one that can program keys as they are a little pricier than the $100.00 code readers.

Another option is to contact a local shop and see if someone will come to you. A lot of times, they will do this, so it is worth asking.

Also, you can buy a scan tool that only programs keys and unless you have a shop that you are programming keys all the time, this is never worth it. You most likely will never use it again so it is not worth it.
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Saturday, October 9th, 2021 AT 4:41 PM
Tiny
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Can you recommend a device? As I said before the locksmiths in my area are not interested in my problem. I asked you also how difficult isit? If I can acquire one.
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Sunday, October 10th, 2021 AT 8:02 AM
Tiny
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I would go with something from Autel. They are the most common brand and most all shops use them. They are cheaper than Snap on tools which are in the thousands of dollars.

I know for a fact that this one specifically will program most any key out there. However, it is not that cheap either as I think they are over $1,000.00.

Autel MaxiSys MS906BT

Again, you can buy one of those key programmers for around $200.00 but they only do key programming, and I am sure you can have the vehicle towed to a local shop and 2 keys programmed cheaper then that. You have to pay for the keys no matter what so having a tow for $50.00 and they charge $100.00 to $150.00 to program keys, you are in it about the same amount.

As for performing the programming, it is not hard. You just have to follow the steps on the scan tool. The tool will tell you the steps as you use it.
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Sunday, October 10th, 2021 AT 10:31 AM
Tiny
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Daughter said a locksmith told her a dealer is only able to program a new ECM and a locksmith can only program a used one. Is it true?
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Sunday, October 10th, 2021 AT 11:14 AM
Tiny
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That may be true for this particular locksmith but if they have the scan tool capable of doing it then they can do it. Not many locksmiths that I am aware of can program ECMs if they are replaced. However, the idea that only the dealer can do it is not accurate.

Most of the locksmiths that I have run into have key programmers but if the ECM is replaced, they may not have the scan tool that can do that.

Also, used ECMs on these newer vehicles will not work as they are VIN specific. So, once they are programmed to a vehicle, they will only work on that vehicle.

Plus, the vehicles that can take a used ECM, they do not require programming as they are already programmed to the other vehicle.

There may be some info that is getting lost from what he meant but based on what you told me, it sounds like he may not be completely informed.
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Sunday, October 10th, 2021 AT 4:16 PM

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