What is the plug-in circled in purple? On my 93 Civic DX (recently purchased; I am the second owner), I have what I think is either an alarm system or some kind of kill switch connecting to the inboard pin of this. The other two pins are blank.

 

Moonroof wire harness

 

i dont remember fully, but i think it might be the dash harness if it isn't the moonroof harness. i'm not entirely sure, but im pretty sure, and i think the plug is brown.

 

Dash harness is the big one. That's the moonroof harness.

 

Okay, thanks. This connector's going to the roof is consistent with a diagram I found after posting.

It is a male connector. Would it ordinarily be left without a female connector on a Civic DX, since the DX has no moon roof?

Right now I think the inboard pin is battery voltage (for powering the alarm system relay to which it connects?).

I am removing the alarm/kill switch system. Mostly I want to know if leaving this 3P connector blank will have any negative effects. I think so, but any other insight is welcome.

Hanmin, yes the plug (= the female connector when present) is 3P and brown, per a photograph I found elsewhere. My DX does not have a plug that I can see, though.

Thank you for the info.