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Okay so here's one for those in the know about factory wiring connections that might be trailer package related. Working on a 2003 E250 5.4 gas motor with no known factory wiring for towing or trailer pulling. Take a look at these photos:
Connector is shown and identified as C140 in my printed EVTM--pin out/faces drawing agreeing with my installed connector. There is no mention of what circuits are present. No power to any terminal at any time.
Looking through the printed EVTM I can't (so far) find any cell where that connector is shown. I need a single 20 gauge wire unfused wire run inside the cabin and would like to avoid drilling another hole in my firewall. Re-purposing an existing connector or adding the single wire to another connector with empty spot the could terminate inside the cabin would be spectacular.
Anyone with knowledge or experience with that type connector would be greatly appreciated.
C140 is part of the modified vehicle harness. The plug you have is the part that remains when the modified vehicle option is not ordered. There will be a grey rectangular plug under the dash near the park brake that will contain some of the wires in C140 and possible a harness under the existing battery tray. Modified vehicle options could have been aux battery, full trailer package, shuttle bus package, ambulance prep.( although with a 5.4L Amb prep may not have been possible )
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