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PCM pinout needed

Tiny
B_ALZUABI77
  • MEMBER
  • 2008 FORD EXPLORER
  • 120 MILES
I had Alldata software and can't find the pinout for the PCM.
Its 170 pin
Mvf3 9L2A-12A650-FD
Monday, August 31st, 2020 AT 1:02 PM

35 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

I attached the diagram for you to view.

Let me know if you have any other questions.

Roy
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Monday, August 31st, 2020 AT 3:47 PM
Tiny
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And does MST9000 has this PCM model? And does this PCM have specific models type or name?
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Monday, August 31st, 2020 AT 6:25 PM
Tiny
ASEMASTER6371
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I gave you the pin out for a 1998 Explorer. It is for both engines. The 4.0 and the 4.6.

If you are replacing the ECM, it must be replaced with the exact same part number.

Roy
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Tuesday, September 1st, 2020 AT 3:51 AM
Tiny
B_ALZUABI77
  • MEMBER
  • 25 POSTS
Hi,
I got you now I am trying to up load pictures to show you my ECU but I can't.
Its 170 pin 2008-2009 Ford Explorer. I am electronic engineer and I switched to automotive electronics maintenance, I bought ktag and kess and mst9000 because I have 2 PCM I love to fix it. I am establishing now my new work shop, and looking for more help, as I ordered Alldata software but it's on the way to me.
So happy to be in this group.
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Tuesday, September 1st, 2020 AT 7:25 AM
Tiny
ASEMASTER6371
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Glad to have you.

Let us know if you any other questions.

Roy
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Tuesday, September 1st, 2020 AT 7:27 AM
Tiny
B_ALZUABI77
  • MEMBER
  • 25 POSTS
Thanks,
Do you have that pinout for Ford Explorer 2008 170 pin?
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Tuesday, September 1st, 2020 AT 7:46 AM
Tiny
ASEMASTER6371
  • MECHANIC
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Look at my first response and all the diagrams are there.

Roy
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Tuesday, September 1st, 2020 AT 8:01 AM
Tiny
B_ALZUABI77
  • MEMBER
  • 25 POSTS
Sorry to annoying you, but all you sent are for 12A651.
What I need is 12A650
(8L2A-BA 8L2A-12A650-GB).
Thanks Bro.
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Tuesday, September 1st, 2020 AT 8:06 AM
Tiny
ASEMASTER6371
  • MECHANIC
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As I stated before, the diagrams are for both ECM. The 4.6 engine and the 4.0 liter engine as well.

Roy
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Tuesday, September 1st, 2020 AT 8:10 AM
Tiny
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Cool, I will try now.
Thanks
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Tuesday, September 1st, 2020 AT 8:11 AM
Tiny
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You are welcome.

Always glad to help.

Roy
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Tuesday, September 1st, 2020 AT 8:23 AM
Tiny
B_ALZUABI77
  • MEMBER
  • 25 POSTS
Hi good morning,

I would like to ask how and where to connect ISC signal from MST-9000 to Ford PCM?
I have the automotive simulator and I would like to test the PCM.
There is pin named ISC and I can't find it in Ford PCM 12A650.
So what is the synonymous for ISC.
And how can I upload pictures here?
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Thursday, September 3rd, 2020 AT 6:41 AM
Tiny
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Are you referring to the idle speed control?

Roy
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Thursday, September 3rd, 2020 AT 9:50 AM
Tiny
B_ALZUABI77
  • MEMBER
  • 25 POSTS
Yes, its idle speed control valve drive.
And PFC : ignition driver.
And is at allow to post pictures here?
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Thursday, September 3rd, 2020 AT 10:10 AM
Tiny
ASEMASTER6371
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With the engine off, you should have 12 volts and a return to the ECM at the ISC, with it running, it will be pulse width modulated. If the check with a voltmeter, you should see around 7 volts to be sure the ECM is commanding it.

Yes, you can post pictures to this post.

Roy
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Thursday, September 3rd, 2020 AT 10:15 AM
Tiny
B_ALZUABI77
  • MEMBER
  • 25 POSTS
Cool, but which pin in PCM is the ISC and PFC?
How can I post pictures here? Because I tried to click on add Image or video but does not work.
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Thursday, September 3rd, 2020 AT 10:22 AM
Tiny
ASEMASTER6371
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Okay, I attached the complete wiring diagram of the system for you to view so you can find colors and pin number.

Roy
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Thursday, September 3rd, 2020 AT 10:38 AM
Tiny
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Thanks, I really appreciate it.
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Thursday, September 3rd, 2020 AT 10:43 AM
Tiny
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Never a problem.

Always glad to help.

Roy
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Thursday, September 3rd, 2020 AT 10:51 AM
Tiny
B_ALZUABI77
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I hope to become like you and provide services here to everyone soon.
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Thursday, September 3rd, 2020 AT 11:01 AM

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