Hello,
recently i was in the junkyard and found a factory "extended idle" switch in an 01 XJ sport. my buddy has a 00 SE, so i grabbed it for him, along with the 3 switch bezel since his only had switches for the defroster and the rear wiper. today we put it in, and we found that there was even a connector behind the bezel for the idle switch, it was plugged into a blank socket on the 2 switch bezel. on the 00 connector, there was a little ridge on the plug that wouldnt allow it to plug into the switch, however, i had cut off the connector with some wiring from the 01 at the junkyard so we would have a reference just in case, and we found that the wires are in the same places. so we filed off the ridge and the connector snaps in firmly. swapped the other switches into the new bezel and screwed the bezel back in. fired it up, let the idle settle, then flipped the switch, and....nothing. no change in idle speed. the little orange light on the switch did not light up either. but with the headlights on, the backlighting in the switch does work, so i know the switch is making a connection. tried both in park and in neutral with the same result.

anybody have any ideas on this?

 

Trace the wires from the console thru Connector C101 and out to the PCM.

 

That plug that was back there was likely the fog light harness that all jeeps have which is why it will only light up with the headlights on and the reason the key didn't match up.

 

that makes sense, but even the colors of the wires in the connector matched the connector i got from the junkyard

 

There are only so many colors to make wiring in. I don't believe the high idle wiring was included if it wasn't equiped from factory.

 

OP, go look under the front of the jeep. May have wiring stashed for fog lights.

As for high idle. It's an easy mod with very little wiring involved. Can just do it yourself if you feel confident and do your research

 

How does one set up this High Idle switch/Mod?
I want to try this for my winch

 

To the OP, this link answers your fog light question. To the guy above this, this answers your question. Part of CF vast knowledge base free for all to read and get ideas from

https://www.cherokeeforum.com/f51/ho...switch-204925/