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That was one of my theories. That ford used the same harness for all their rangers. I have 4x4 dash indicator lights, but it's a 2wd truck. Thanks for clarifying!It's for the 4x4 and Low Range lights on the dash (my '94 has the same connector with another harness plugged into it running down to the 4WD transfer case).
Ford generally puts all the same wiring in every truck rolling off the assy line regardless of what options it has installed (my truck didn't have the fog light package either, but still has fog light wiring connectors).
IIRC, base model trucks prior to '95 have a door buzzer instead of a chime.