Compass/Temp/Auto dim mirror swap (detailed with lots-o-pics) - Page 11 - JeepForum.com

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post #151 of 182 Old 12-03-2013, 11:18 PM
bill8bud
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Clean the dielectric grease off the connector. It may be creating addtional resistance causing your temp measurement error.

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post #152 of 182 Old 12-07-2013, 12:56 PM
resavage
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It's working just fine now. Turns out one of the pins in the harness was loose. If you buy a used mirror, make sure you check the wire connections at the pins themselves. This cleared up the false reading instantly. Thanks for the help.
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post #153 of 182 Old 01-07-2014, 11:37 AM
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I'm going to be doing this on my 05 LJ. I bought a Gentex 177 off ebay, and was lucky enough to find the factory 56047087AC jumper wire to connect to the body harness underneath the defroster panel. My question is do I need to change the pinout of the factory Jeep harness to match the Gentex 177?

Thanks,

Patrick
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post #154 of 182 Old 01-18-2014, 06:45 PM
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I found a GNTX-177 at a junk yard yesterday and today punched a hole in the windshield frame, ran the wires and got everything hooked up ready to go. My 2002 doesn't have the handy power outlet under the defroster panel... of course. Problem is, I can't find a unused fuse position in the fuse box behind the glove compartment.

I purchased a mini-fuse at OReilly that allows you to plug into an open mini slot.. then using a 5 amp fuse it has a butt splice for the mirror power wire.

These are the slots I've been trying:

18 is a spare, but it has no power with ignition on or off.
3 is for a subwoofer. It has no power with ignition on or off.
and 16 is a headlight aim for exports, no power with ignition on or off.

Do I have a problem somewhere else? I pulled the fuse for the cigarette lighter and plugged in my 5 amp adapter and it the mirror powered right up, but I can't use that permanently because my wife uses that to power her ipod for music.

Anyone have any ideas?
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post #155 of 182 Old 01-18-2014, 11:42 PM
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Piggy back

Always look both ways before crossing the stream.
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post #156 of 182 Old 01-18-2014, 11:48 PM
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You need a fuse tap that replaces a fuse & adds a 2nd one to attach to the new wire. Like this:

http://www.ebay.com/itm/like/230879096998?lpid=82

That may be what you have but not seeing the 2nd slot.(?)
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post #157 of 182 Old 01-19-2014, 08:53 AM
BoiseTJ
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Quote:
Originally Posted by Rubi4MyMrs View Post
You need a fuse tap that replaces a fuse & adds a 2nd one to attach to the new wire. Like this:

http://www.ebay.com/itm/like/230879096998?lpid=82

That may be what you have but not seeing the 2nd slot.(?)
That's what I've got, but the one in your ebay ad must be better than the one I purchased at o'reilly... the instructions say that the amps of both fuses have to be the same, not to exceed 10 amps. There are no 5 am fuses in the fuse box.

Last edited by BoiseTJ; 01-19-2014 at 09:04 AM.
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post #158 of 182 Old 01-19-2014, 09:06 AM
BoiseTJ
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Originally Posted by LukeADukes View Post
Piggy back
I may have to do that, but really didn't want to... any idea how to identify a switched wire? There is about a 6 wire bundle that runs right above the fuse box.

On edit, I ended up piggy backing the cigarette lighter and putting in a 5 amp inline fuse.
What the heck, it works!

Last edited by BoiseTJ; 01-19-2014 at 01:18 PM.
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post #159 of 182 Old 01-20-2014, 05:02 AM
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Quote:
Originally Posted by BoiseTJ View Post
I may have to do that, but really didn't want to... any idea how to identify a switched wire? There is about a 6 wire bundle that runs right above the fuse box.

On edit, I ended up piggy backing the cigarette lighter and putting in a 5 amp inline fuse.
What the heck, it works!
I have been using 3 of those piggy back fuses on my 2002 for various addons for a few years now, and a couple of them have 10 amp fuses in them. No problems. I'm getting ready to do this this mod myself, but I don't want to add yet another piggy back, so I'm looking for a good secondary fuse panel I can add and transfer all my mods over to it.
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post #160 of 182 Old 01-22-2014, 06:27 PM
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This thread is awesome- Thanks to the OP for such a detailed writeup, and to all else who've provided inputs and insight... Definitely on my list

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post #161 of 182 Old 01-22-2014, 07:57 PM
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Originally Posted by h1driver View Post
This thread is awesome- Thanks to the OP for such a detailed writeup, and to all else who've provided inputs and insight... Definitely on my list
Hope you find it cheap like I did.

To anyone interested. The factory Jeep auto dim compass/temp mirror was a seven pin model as are the ones in the GM trucks. If your Jeep is pre-wired for this like mine you might be able to order the factory mirror jumper wire and just plug an play. I am not positive about this but you you definitely can change the pins around in the harness if need be. I didn't go this route because I didn't want to spend the extra money. Here is the part number if anyone is interested in testing this. Would be much easier.

Here are the part numbers:
Mirror Jumper Harness - 56047087AC
Ambient Temp Sensor - 56042395
Bracket for Ambient Temp Sensor - 56047123AB
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post #162 of 182 Old 01-25-2014, 07:37 PM
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Quote:
Originally Posted by bbradUSMC View Post

Hope you find it cheap like I did.

To anyone interested. The factory Jeep auto dim compass/temp mirror was a seven pin model as are the ones in the GM trucks. If your Jeep is pre-wired for this like mine you might be able to order the factory mirror jumper wire and just plug an play. I am not positive about this but you you definitely can change the pins around in the harness if need be. I didn't go this route because I didn't want to spend the extra money. Here is the part number if anyone is interested in testing this. Would be much easier.

Here are the part numbers:
Mirror Jumper Harness - 56047087AC
Ambient Temp Sensor - 56042395
Bracket for Ambient Temp Sensor - 56047123AB
So where all would like to to see if mine is wired? I have an odd sensor-like object mounted in the front of my radiator but no clue what it is or for.
TIA

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post #163 of 182 Old 01-25-2014, 09:59 PM
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Quote:
Originally Posted by tulman22 View Post
So where all would like to to see if mine is wired? I have an odd sensor-like object mounted in the front of my radiator but no clue what it is or for.
TIA
Here for the ambient temp sensor harness, notice bottom of the grill in front of radiator, also mine was on the passenger side.


And here, plug for the opposite side of the mirror for the mirror jumper harness, notice white connector.



This is another great write up
http://www.wanderingtrail.com/Mods/T...lec_Mirror.htm
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post #164 of 182 Old 01-25-2014, 10:47 PM
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Does the compass mirror fit on the same windshield mount as the stock jeep one

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post #165 of 182 Old 01-26-2014, 09:08 AM
bbradUSMC
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Quote:
Originally Posted by rbkelley89 View Post
Does the compass mirror fit on the same windshield mount as the stock jeep one

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mine did
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