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Unread 06-20-2014, 04:57 AM   #1
hardluk
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Another round of name that part.

Taking my tranny out I found this burnt plug zip tied up under the floor panel.

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image-1843093124.jpg

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Unread 06-20-2014, 05:07 AM   #2
grandboost98
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Not sure what its for, but I do know it connects on the passenger side near the fill plug
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Unread 06-20-2014, 06:22 AM   #3
Michaelgoesrawr
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I was gonna say it looks like the reverse light switch.

Edit: That's auto so nvm. I dunno.
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Unread 06-20-2014, 08:23 AM   #4
Que89YJ
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One way to tell for sure. Short the 2 wires together and see what lights. I think Mikes right.
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Unread 06-20-2014, 09:56 AM   #5
warthog312
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Get yourself a schematic (Hayes, Chiltons, etc.) and play the "follow the diagrams" game until you can identify the wire colors and plug. Personally, if I were running without something like that for a long time and everything seemed fine, I'd just let it be; but I'm no professional mechanic....
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Unread 06-20-2014, 10:19 AM   #6
bpounds
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The backup lamp switch wire colors would be yellow w/trace and brown w/trace. Clean up those wires and check the colors.

You can download the FSM for your '87 and it has the schematics in it. That's where I got those colors.
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Unread 06-20-2014, 10:28 AM   #7
superj
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thats an auto? maybe its the neutral safety switch? do you have a stock solenoid on the jeep? the neutral safety switch hooks to the third pole on the stock solenoid, the bottom pole. if you have a two pole solenoid and a spare plug hanging by the solenoid, that is probably what it is
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Unread 06-20-2014, 10:41 AM   #8
hardluk
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My backup lights work. Thanks for the link que I have a Haynes manual my little girl likes to color in it. I have found that's about all it's good for. I'll trace it out when I get back home but I've been thinking about it all morning and I've never had a 4wd light. PO installed a posi lock cable on the CAD but did a real crappy job. I think he used a bicycle brake line and didn't even seal the cover up. That's next on my list after this slave conversion.
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Unread 06-20-2014, 10:42 AM   #9
hardluk
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Ax/5 manual
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Unread 06-20-2014, 11:07 AM   #10
HaskiE
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Quote:
Originally Posted by hardluk View Post
My backup lights work. Thanks for the link que I have a Haynes manual my little girl likes to color in it. I have found that's about all it's good for. I'll trace it out when I get back home but I've been thinking about it all morning and I've never had a 4wd light. PO installed a posi lock cable on the CAD but did a real crappy job. I think he used a bicycle brake line and didn't even seal the cover up. That's next on my list after this slave conversion.
:

I think my Haynes manual is my favourite book of all!
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Unread 06-20-2014, 11:25 AM   #11
Que89YJ
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Funny you should say 4wd light That was my first post. Search the pdf by wire color or the forum. I am pretty sure it comes up too.
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Unread 06-20-2014, 02:12 PM   #12
YJ4LIFE
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4wd light should be from the firewal vacuum switch no?
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Unread 06-20-2014, 03:54 PM   #13
Michaelgoesrawr
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Quote:
Originally Posted by YJ4LIFE
4wd light should be from the firewal vacuum switch no?
Depends on the year.

Early model it's a vacuum switch. Some time in the early 90's they switched it to electric on the CAD.
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