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Jeep Wrangler YJ
YJ General Discussion
Identifying plugs in engine bay, passenger-side
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<blockquote data-quote="machoheadgames" data-source="post: 428124" data-attributes="member: 18789"><p>So two of them are AC plugs and one is for 4X4 light. But, there are three types of AC: factory, dealer, and aftermarket. Factory was always hooked up to the factory wiring; i.e. the plugs you see. Dealer installed could go either way, depending on if they sourced parts from places like JeepAir (aftermarket) or Chrysler. From Chrysler they would have plugged it in. The aftermarket stuff some dealers used basically pulls power from an ignition power source in the glove box, and then uses it’s own simple wiring harness to go to the compressor and the AC drier on the fender.</p><p></p><p>So for the plugs:</p><p></p><p>1. Factory AC compressor plug-in. Looks like you have aftermarket AC that is bypassing the factory wiring with its own wiring. I bet if you look at the fuse box there is a random wire (typically blue) plugged in that is powering the entire AC system.</p><p></p><p>2. Looks like 4X4 light wiring. From the factory, it plugs into a jumper harness that runs down to the front axle to light up the dash light when the vacuum CAD engages after putting Jeep in 4Hi or 4Lo. Let me guess, this light doesn’t work?</p><p></p><p>3. Factory AC drier wiring. Looks like again, you are using aftermarket AC either installed by dealer or previous owner, and it is bypassing the factory wiring with its own wiring.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 428124, member: 18789"] So two of them are AC plugs and one is for 4X4 light. But, there are three types of AC: factory, dealer, and aftermarket. Factory was always hooked up to the factory wiring; i.e. the plugs you see. Dealer installed could go either way, depending on if they sourced parts from places like JeepAir (aftermarket) or Chrysler. From Chrysler they would have plugged it in. The aftermarket stuff some dealers used basically pulls power from an ignition power source in the glove box, and then uses it’s own simple wiring harness to go to the compressor and the AC drier on the fender. So for the plugs: 1. Factory AC compressor plug-in. Looks like you have aftermarket AC that is bypassing the factory wiring with its own wiring. I bet if you look at the fuse box there is a random wire (typically blue) plugged in that is powering the entire AC system. 2. Looks like 4X4 light wiring. From the factory, it plugs into a jumper harness that runs down to the front axle to light up the dash light when the vacuum CAD engages after putting Jeep in 4Hi or 4Lo. Let me guess, this light doesn’t work? 3. Factory AC drier wiring. Looks like again, you are using aftermarket AC either installed by dealer or previous owner, and it is bypassing the factory wiring with its own wiring. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Identifying plugs in engine bay, passenger-side
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