vintagegarage Posted March 31, 2013 Share Posted March 31, 2013 I just bought a 2013 Transit Connect and it came with the modified wiring option. Unfortunately, I can't find anything in the owners manual or online that explains where to find the end of the wires for the option. The best clue I can find is on page 11 in the Body Builders Layout Book, see: https://www.fleet.ford.com/truckbbas/non-html/2013/2013_Transit_Connect_v1-0.pdf If I read that diagram correctly, the under the hood pass through wires are taped to the wiring harness near s113. My guess is S113 is switch 113. Also, the other end of the pass through wires plus the three fused wires are in the interior of the vehicle taped to the harness near C205. My guess is that C205, is connector 205. The problem is I can't find anything that says where S113 and C205 are located on the vehicle. Does anyone on the forum have a factory wiring manual for a 2013 Transit Connect, (or just as good, I bet, would be a 2012 wiring manual) and can look up the names and locations of S113 and C205 and post what they are?.. any help would be much appreciated. Quote Link to comment Share on other sites More sharing options...
103west43rd Posted March 31, 2013 Share Posted March 31, 2013 Hello vintagegarage, as per my 2010 wiring manual, "S" is for "Splices", "C" is for connectors. S113 is tough to access. it is UNDER the BJB (battery junction box) which is the fuse and relay box between the battery and the firewall. C205 is the connector to the main lighting switch, much easier to access. Remove the fuse panel cover under the lighting switch, reach in and above to the lighting switch and squeeze the top and bottom of the switch and push it out of the panel. Good Luck. Quote Link to comment Share on other sites More sharing options...
vintagegarage Posted March 31, 2013 Author Share Posted March 31, 2013 103west43rd.. your prompt reply is much appreciated. I looked around the BJB and you are right.. it is tough to see under there, so I decided instead to look around the lighting switch for the other ends, figuring once I saw how they were taped, I could get a better feeling for what might be under the BJB. The lighting switch came out easily just as you say, but I couldn't find any blunt cut wires taped to anything. At that end, I'm expecting to find a bundle of 5 blunt cut wires taped off. At the BJB end, just two. I did look at the fuse box below the light switch, and see that the vehicle came with fuses installed in positions 155, 144, and 149, so that is maybe a hopeful sign. I guess I still need help. Quote Link to comment Share on other sites More sharing options...
103west43rd Posted March 31, 2013 Share Posted March 31, 2013 Vintagegarage, you may be on to something. I do not think Ford would put fuses in a circuit that is not terminated into some kind of load or switch. My 2010 wiring manual shows the three fuse positions you mention as "not used", a good sign. Just as information for our forum members, what does the "modified wiring option" supposed to control? Quote Link to comment Share on other sites More sharing options...
vintagegarage Posted March 31, 2013 Author Share Posted March 31, 2013 (edited) All I know about it is what I read in the sales brochure: Modified Vehicle Wiring includes 2 engine compartment blunt-cut wires, B+ wire, ignition/run wire, interior lamps wire and 2 instrument panel blunt-cut wires I think this means that the new three fused circuits are meant to be used by a user application that needs a hot wire, or a wire that is on when the ignition is on, or one when the interior lamps are on. The other two wires are not fused, and they simply provide a way to connect a user switch inside the vehicle to some sort of accessory under the hood. For example, if you wanted to run a 12V refrigeration unit in the back and you wanted a circuit for it, you could use the new B+ circuit and chassis ground. If you wanted to run a TV set in the back, you might want to use one of the circuits.. same if you were putting a wheelchair lift on the back. The implication is that the two unfused blunt cut wires behind the instrument panel would be connected to user switches to control something under the hood, or up front, perhaps like a hidden radar detector, using the corresponding blunt cut pass through wires that are under the hood. Edited March 31, 2013 by vintagegarage Quote Link to comment Share on other sites More sharing options...
103west43rd Posted April 2, 2013 Share Posted April 2, 2013 Vintagegarage,one remaining idea. There are two solid rubber grommets pluging unused (at least unused in my 2010) holes in the firewall behind and above the pedals. Take a look. if they have wiring going through them, that might be where your wiring goes from the fuse block to the engine compartment. Quote Link to comment Share on other sites More sharing options...
vintagegarage Posted April 2, 2013 Author Share Posted April 2, 2013 I had my Ford sales rep research this, and he came back with the same info.. i.e. taped to the harness to the headlight switch. Since I had already looked there, I poked around some more in that area and finally found the wires. Unlike the harness to the headlight switch, the harness that goes to the OBD reader plug doesn't have a corrugated plastic tube around it. Rather, the harness that runs to the OBD reader is wrapped with that same shiny black thin electrical tape that is used all over the place. When I unwrapped the electrical tape holding the wires to the OBD plug in a bundle, I found the blunt cut wires for the modified wiring option inside that wrapping. Now that I know better what to look for, I will look again under the hood. I expect now that the under-the-hood two pass through wires ends will also be in one of the bundles near the fuse/relay box in the engine bay, rather than taped to the harness. Quote Link to comment Share on other sites More sharing options...
vintagegarage Posted April 2, 2013 Author Share Posted April 2, 2013 Found the ends of the two pass through wires under the hood.. taped to the wiring harness, pretty much as described in the documentation.. once I found the five wires behind the dashboard in the ODB harness, it became easier to find the two ends under the hood.. see photos.. the pencil is pointing to the two pass through wires taped on top of the harness. I was looking for wire colors, but as you can see, neither of the wires are exposed.. they are hidden under the tape. Quote Link to comment Share on other sites More sharing options...
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