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Jeep Wrangler YJ
YJ General Discussion
Cool Discovery - Factory Hard-Top Defroster Functions on Non-Heated Tops
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<blockquote data-quote="machoheadgames" data-source="post: 434118" data-attributes="member: 18789"><p>Bought a factory defroster harness which was in pretty nasty shape but included the special red relay I needed, and the wires and their appropriate terminals to install in my own factory connectors. It was pretty simple to do, just took some time. I now have 12V at the defroster wire when I trigger the defrosted with my factory eBay switch <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3998" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /></p><p></p><p>The harness says it came out of a 1994, but man it was a mess. It DID come out of a 1994-1995, because the wiring for 3rd brake light was there. All the connectors were there just fine, but the wiring colors were all screwed up. Some solid colors, some colors were factory for positive but were put in the grounds, etc. it was a mess. It was definitely factory though, not tinkered with. It’s like Jeep ran out of wire that day and went to the parts store and bought a roll of every color lol. It made it a nightmare to get wired up, I had to triple check every wire function to figure out what goes where. </p><p></p><p>I wish I took pics but in the moment I was working through it and didn’t really. All I can say is that the conversion is quite easy if one desires to do it! Now I just need the heated glass, assemble it and I will officially have the factory hardtop heater option.</p><p></p><p>The relay I received was not working. It triggered on and off properly and the timer worked, but I was not getting continuity from battery power out to the defroster itself. It was an easy fix. Opened the relay and saw the armature was not contacting the output terminal when triggered. It was bent slightly out of shape, so I just bent it back. In the bottom right you can see the two contacts, when relay triggers those are supposed to touch. They weren’t. After bending the arm it works perfectly now. I had purchased another relay from eBay, which worked as it came. So now I have a spare!</p><p></p><p>[ATTACH=full]119428[/ATTACH]</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 434118, member: 18789"] Bought a factory defroster harness which was in pretty nasty shape but included the special red relay I needed, and the wires and their appropriate terminals to install in my own factory connectors. It was pretty simple to do, just took some time. I now have 12V at the defroster wire when I trigger the defrosted with my factory eBay switch :cool: The harness says it came out of a 1994, but man it was a mess. It DID come out of a 1994-1995, because the wiring for 3rd brake light was there. All the connectors were there just fine, but the wiring colors were all screwed up. Some solid colors, some colors were factory for positive but were put in the grounds, etc. it was a mess. It was definitely factory though, not tinkered with. It’s like Jeep ran out of wire that day and went to the parts store and bought a roll of every color lol. It made it a nightmare to get wired up, I had to triple check every wire function to figure out what goes where. I wish I took pics but in the moment I was working through it and didn’t really. All I can say is that the conversion is quite easy if one desires to do it! Now I just need the heated glass, assemble it and I will officially have the factory hardtop heater option. The relay I received was not working. It triggered on and off properly and the timer worked, but I was not getting continuity from battery power out to the defroster itself. It was an easy fix. Opened the relay and saw the armature was not contacting the output terminal when triggered. It was bent slightly out of shape, so I just bent it back. In the bottom right you can see the two contacts, when relay triggers those are supposed to touch. They weren’t. After bending the arm it works perfectly now. I had purchased another relay from eBay, which worked as it came. So now I have a spare! [ATTACH type="full"]119428[/ATTACH] [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Cool Discovery - Factory Hard-Top Defroster Functions on Non-Heated Tops
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