Plug For 03 FLSTC What Is It For?
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Joined: Oct 2022
Posts: 80
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From: SW Missouri
Plug For 03 FLSTC What Is It For?
Is the plug number 14 originally for the fuel injection? It doesn't say what it is it just says plug, and it also has a rubber plug in the center of it to seal it up. My bike is 03 FLSTC. Carbureted.
Grand HDF Member
Joined: Nov 2012
Posts: 4,994
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From: Newport,TN area
Yeah, the Data Link Connector should have a (black) plug in it. It should be a
4-pin Deutsch connector (often gray) and uses the J1850 communication protocol.
I think the CAN-bus style is 6-pin and in-production on some 2012 models
(but I could be wrong).
hth,
T.
4-pin Deutsch connector (often gray) and uses the J1850 communication protocol.
I think the CAN-bus style is 6-pin and in-production on some 2012 models
(but I could be wrong).
hth,
T.
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,143
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From: San Diego, CA
I know Softails went to the Canbus in 2011, I believe Dynas went to the Canbus in 2012. Touring didn't go to the Canbus until the Rushmore bikes in 2014....
Road Captain
Joined: Jun 2013
Posts: 734
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From: Rochester NY
It's for a tech to plug in and check the electronic doo-hickeys on the bike. Or...it's for you to jam a paper clip in to make your engine light flash and then read the codes.
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Grand HDF Member
Joined: Nov 2012
Posts: 4,994
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From: Newport,TN area
https://university.fuelmotousa.com/a...tor-locations/
T.
Last edited by WKNDS; May 11, 2026 at 03:08 PM.
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Seasoned HDF Member
Joined: Sep 2008
Posts: 14,143
Likes: 11,212
From: San Diego, CA
IDK, all I can point to is references from the 'net which would indicate otherwise.....
https://university.fuelmotousa.com/a...tor-locations/
T.
https://university.fuelmotousa.com/a...tor-locations/
T.
FWIW......
From the "2011 MY New Model Technical Forum" presented at the 2010 summer Harley dealer meeting....
Last edited by hattitude; May 11, 2026 at 06:45 PM.
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