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The 13-14 S197 Smart Junction Box - Unveiled

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Old Feb 2, 2026 | 02:19 PM
  #1  
Slonison's Avatar
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{Step by Step} The Tms Accessorizer
 
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The 13-14 S197 Smart Junction Box - Unveiled

For about 4 months, I have been deconstructing the 2013 Smart Junction Box. This generally works for both the 2013 and 2014. I cannot comment on whether or not it is accurate for the other S197 models.



I have torn it down, mapped out the circuits (no fully but almost).



Here is a word document with every single wire going in and out of the SJB explained.

S197 Smart Junction Box - Google Docs



Here is a video explain what, where, when, how, and why




Here is a video on adding power to the SJB without using Add a fuse.




This document is good for anyone who needs to identify and add an always on power source or a run/start only power source.

Last edited by Slonison; Feb 2, 2026 at 02:21 PM.
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Old Feb 2, 2026 | 03:14 PM
  #2  
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Administrator clevparts@aol.com
 
Joined: November 27, 2004
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From: Visalia Ca.
Just a Heads Up as Far as Parts Interchangability.

The 2010-2012 Are All 315 Mhz For Keys These Should All Interchange No Issues
The 2013-2014 are Partial 315 Mhz and Partial 433 Mhz You Would Need To Know Key Frequency.

Notice How Many Times The Part Numbers Change To This Final Number For the 315 Mhz! Be advised Ford Part Numbers Are a Bit Different Than ID Number on Sticker on Part! Also Disregard Production Date Limitations on this Link as Number Changed So Many Times it Clouds Data!

https://www.fordpartsgiant.com/parts...tra2=&filter=()

This is The 433 Mhz
https://www.fordpartsgiant.com/parts...tra2=&filter=()


This Info Would Come into Play if You Were Looking For a Used SJB. You Would Want Your Keys To Be Able To Be Programmed So Correct Mhz Would Be Needed on Later Cars.

This Info is Only as Good As Ford Parts Giant Cataloging Allows. Use Your Best Judgement. ID Numbers With First Character {D} Would Be 433 Mhz While The A or B Would Be 315 Mhz. Again I Am Basing My Information On This One Online Catalog. I Have Not Used Genuine FORD Parts Cataloging!

Hope This Helps!

KC
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Old Feb 2, 2026 | 03:18 PM
  #3  
Slonison's Avatar
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{Step by Step} The Tms Accessorizer
 
Joined: December 22, 2024
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Originally Posted by 05stangkc
Just a Heads Up as Far as Parts Interchangability.

The 2010-2012 Are All 315 Mhz For Keys These Should All Interchange No Issues
The 2013-2014 are Partial 315 Mhz and Partial 433 Mhz You Would Need To Know Key Frequency.

Notice How Many Times The Part Numbers Change To This Final Number For the 315 Mhz! Be advised Ford Part Numbers Are a Bit Different Than ID Number on Sticker on Part! Also Disregard Production Date Limitations on this Link as Number Changed So Many Times it Clouds Data!

https://www.fordpartsgiant.com/parts...tra2=&filter=()

This is The 433 Mhz
https://www.fordpartsgiant.com/parts...tra2=&filter=()


This Info Would Come into Play if You Were Looking For a Used SJB. You Would Want Your Keys To Be Able To Be Programmed So Correct Mhz Would Be Needed on Later Cars.

This Info is Only as Good As Ford Parts Giant Cataloging Allows. Use Your Best Judgement. ID Numbers With First Character {D} Would Be 433 Mhz While The A or B Would Be 315 Mhz. Again I Am Basing My Information On This One Online Catalog. I Have Not Used Genuine FORD Parts Cataloging!

Hope This Helps!

KC
With the car being 2 generations and 12 years+ old, I wish Ford would just give me the PCB diagrams.... Would be so much easier than this....
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Old Feb 2, 2026 | 03:24 PM
  #4  
05stangkc's Avatar
Administrator clevparts@aol.com
 
Joined: November 27, 2004
Posts: 12,515
Likes: 4,278
From: Visalia Ca.
I'm Afraid I'm Out of The Loop With FORD Anymore. All The Contacts I Had are Retired or Non Responsive To Retired Dealer Employee's, Kind of Sad! I Had a Guy With Access To This Kind Of Stuff! I Tried To get Some Help awhile Back & Got The Impression He Left Ford With Some Bad Blood on The Way Out & Politely Declined Assistance For Me!

Same Thing With My 3500+ Contacts {Mostly Ford Employee's} on Linkedin! No Help When Asked!

So Why I am I Still Helping Folks With FORD Issues 7 Years After Retiring! I Guess I'm Just an Oddball!

As Far As What You are Doing My Hat's Off To You! Way Out of My Paygrade! Kudo's To Your Electronic Wizardry!

KC
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