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Unread 05-17-2013, 07:56 PM   #46
Old4X
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How about ignition feed to radio?

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Unread 05-17-2013, 08:12 PM   #47
CBinDC
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I was hoping to find a connection In the mess of wires behind the speedo and tach. I'll look through them tomorrow. I have them all labeled. Not that they're all correct!

My biggest concern is that when I turned on engine, the parking brake was set but the LED didn't come on.
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Unread 05-18-2013, 04:59 AM   #48
CBinDC
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Ok. So here are the lines I have available that are not being used: up shift indicator (at least that's what I labeled it - I don't remember it ever having an up shift light in the dash though), service warning Indicator (i didn't hook this up to my dash because I did the nutter bypass and im not sure how useful this is now - i know Im a noob - i will be starting a thread inquiring about this in the near future), and ignition 12v feed (although it is being used to power my speedo, I can still tap into it).
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Unread 05-18-2013, 05:23 AM   #49
Que89YJ
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just hook it up to the switched ignition feed going in. use a 20 guage wire and run it to the socket. use a couple dabs of rtv to hold it in place.
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Unread 05-18-2013, 01:07 PM   #50
CBinDC
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I did as Que suggested, tapped into the 12v feed, and now I have a working light. Thanks guys! Now, onto my 4wd indicator light. : )
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Unread 05-18-2013, 03:21 PM   #51
CBinDC
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Now the 4wd indicator light, I looked in the manual and it indicated that the black/ yellow wire is the ground for the 4wd indicator light. So I hooked that wire up to the ground of the LED and then I tapped into the 12v feed again for the power because it worked for the brake light.

I turned on the engine, put it in the 4wd, and the light isn't working. What next? Was it not a good idea that I re-tapped back into the 12v ignition feed?
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Unread 05-18-2013, 03:34 PM   #52
Michaelgoesrawr
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Did your 4x4 light ever work? Do you still have all of the vacuum stuff under the hood. There is a better chance your switch is bad instead of your light and wiring.

Edit: your Jeep also has to be running for the light to work.
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Unread 05-18-2013, 03:42 PM   #53
CBinDC
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It did work at one time but it was loooong before I did the nutter bypass and yanked a bunch of vacuum hoses. Would this be the issue?
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Unread 05-18-2013, 04:03 PM   #54
Michaelgoesrawr
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Quote:
Originally Posted by CBinDC
It did work at one time but it was loooong before I did the nutter bypass and yanked a bunch of vacuum hoses. Would this be the issue?
It very well could be. There needs to be vacuum from the cad on your axle to the switch next to the battery. It's a blue thing. Unplug the wire and ground it with the ignition turned on. If the light comes on(assuming the rest of your wiring is correct) its a vacuum problem from the cad.
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Unread 05-18-2013, 04:18 PM   #55
CBinDC
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Will the 4wd still work if the vacuum from the CAD is not working properly?
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Unread 05-18-2013, 04:35 PM   #56
CBinDC
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I'm just trying to determine if I want to bother with it.
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Unread 05-18-2013, 04:41 PM   #57
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This is the only "blue thing" I see near the battery:



image-2908144195.jpg
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Unread 05-18-2013, 05:58 PM   #58
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Quote:
Originally Posted by CBinDC
This is the only "blue thing" I see near the battery:
Sorry. It's on the firewall next to the battery. Yeah the 4wd should still work id imagine. You need a vacuum source from the motor but I'm not sure how the rest works.
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Unread 05-18-2013, 06:57 PM   #59
CBinDC
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Sorry, I don't see anything on the firewall near the battery. I have an '89 YJ. Maybe we have different years/ models. ??
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Unread 05-18-2013, 07:57 PM   #60
Michaelgoesrawr
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Quote:
Originally Posted by CBinDC
Sorry, I don't see anything on the firewall near the battery. I have an '89 YJ. Maybe we have different years/ models. ??
Mines am '88. They didn't change the system until the '90's I thought. Do you have electrical connectors on the cad on the axle? There should be an orange/black wire in the loom that goes by the battery somewhere.


This is what the switch looks like.
This is the connector in the engine bay


Edit: You can pm me your number and I'll help how I can.
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