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i-Vtec
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Discussion Starter #1
Ok so this is a relatively simple How 2. As we have found out Auto Dimming Rear View Mirrors are not very common on Gen 8 Civic. There are plenty available on ebay but they dont come with the electrical connector so your best bet is to go to a scrap yard yourself and remove what you need. I removed these items from a Nissan Navara which are identical to the Honda's(generic part supplier I imagine).

What you need. Auto Dimming Mirror, wiring loom.



Heres the tools you will need.



Remove the old Mirror by just pushing it straight up, its only held in by a spring clip. Here is the windscreen mount your left with.



Now pries off the clear cover for the interior light and remove the grey plastic insert. You can now see the 2 screws that need to be undone to remove the interior light unit.



Connect the dimming mirror to that mount, there is a small Torx Grub Screw that tightens to the mount. There is a small cut out in the roof lining where the loom slides through.

There are 3 electrical plugs to disconnect from the light unit. The plug you are looking for is the large white plug that goes to the Sunroof Blind Switch. There are on two wires required, although there are 3 wires in the loom. You only need the Black and white(Ground) and Orange and White(Live). Connect the Black and White wire to the Pink wire 3rd from the right. The Orange and white wire connects to the "Mauve" and silver wire 2nd from the left. The Mauve and silver wire is a switched illumination wire, this means that the Mirror will only work when you have the lights switched on.





Before you put everything back together test it all works be turning the sidelights on, the green light on the Mirror will illuminate.

 

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Premium Member
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Fantastic @Das, thanks for taking the time to share that.
 
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i-Vtec
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Discussion Starter #4
Ive just realized that not all civic's have a panoramic roof, and hence no switch for the blinds to take a feed off of. There is however the comfort light(the little green one in the middle) that is switched via the headlight switch so you could use the live from this if you dont have a panoramic roof.
 

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instead of splicing the wires, would a scotch lock be able to do the job at all without getting the way of anything when you reconnect and reroute the cable?
 

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i-Vtec
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3,536 Posts
Discussion Starter #6
Id say no. I doubt there is enough room above the unit and the roof for a scotch lock, mind you maybe you get small versions these days, years since I used one. . I used a wire stripper to pare back the wire which i forgot to put in the picture.

 

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How did you strip back the wire? I know you've got a stripper but i assumed when its exposed it just pushed the sheath back into the rest of the wire causing it to ripple somewhat? Or did you cut the wire about an inch off of the connector block and then strip it back?

Was it just a twisted pair and then taped up or did you solder on the connection?
 

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i-Vtec
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Discussion Starter #8
I just pushed the sheath using the wire strippers. It doent ripple as there is enough shrinkage in the rubber sheath. I just twisted the wire on, yes I should have soldered it.
 

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Yes, it will. I have the same one on my car and the compass works as well!!
 

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apparently they all come without the torx screw to fix the mirror on the mount, where did you guys get the screw or what size is it?
 

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Ok so this is a relatively simple How 2. As we have found out Auto Dimming Rear View Mirrors are not very common on Gen 8 Civic. There are plenty available on ebay but they dont come with the electrical connector so your best bet is to go to a scrap yard yourself and remove what you need. I removed these items from a Nissan Navara which are identical to the Honda's(generic part supplier I imagine).

What you need. Auto Dimming Mirror, wiring loom.



Heres the tools you will need.



Remove the old Mirror by just pushing it straight up, its only held in by a spring clip. Here is the windscreen mount your left with.



Now pries off the clear cover for the interior light and remove the grey plastic insert. You can now see the 2 screws that need to be undone to remove the interior light unit.



Connect the dimming mirror to that mount, there is a small Torx Grub Screw that tightens to the mount. There is a small cut out in the roof lining where the loom slides through.

There are 3 electrical plugs to disconnect from the light unit. The plug you are looking for is the large white plug that goes to the Sunroof Blind Switch. There are on two wires required, although there are 3 wires in the loom. You only need the Black and white(Ground) and Orange and White(Live). Connect the Black and White wire to the Pink wire 3rd from the right. The Orange and white wire connects to the "Mauve" and silver wire 2nd from the left. The Mauve and silver wire is a switched illumination wire, this means that the Mirror will only work when you have the lights switched on.





Before you put everything back together test it all works be turning the sidelights on, the green light on the Mirror will illuminate.

What is the green wire for? I tried connecting it to all different wires but made no difference
 
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