*update* removed navigation and rewired automatic climate control

A forum for the legendary Nissan Pathfinder and Infiniti QX4.
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sroberts
Posts: 137
Joined: Sat Jun 25, 2011 11:21 am
Car: 2001 Pathfinder LE 4WD
Location: Seneca, SC

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mglint wrote:
Sun Nov 03, 2024 12:10 pm
...Where can I get a 2 plug harness to plug into the back of the new climate control unit (27500 4W301) (its looks like 20 pin & 16 pin side by side?
That's a tough one, I think most or all who did this project purchased a climate control unit with a harness.


fmagona
Posts: 1
Joined: Fri Jan 31, 2025 11:40 pm
Car: 2002 Infiniti QX4

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sroberts wrote:
Wed May 16, 2018 7:09 pm
nissanclub2001 wrote:
Thu Jul 20, 2017 11:07 am
Sroberts:
Any chance you still have pics showing wire colors and pin positions on this? It would help me out tremendously. Please.let me know
Thx
Pete
Pete, not all colors match between the old and new connectors so you cannot go by color. Use the HA reference document, http://www.nicoclub.com/FSM/QX4/2001%20 ... tioner.pdf. On page 40 it shows pinouts of the NAV and non-NAV connectors. I went pin by pin, matching the pins by function. For example, "ECM Signal" is on pin 6 of the Non-NAV connector, yet is on pin 17 of the NAV connector. So I took the wire from my NAV harness that terminates at pin 17 and spliced it to the wire that terminates at pin 6 of the Non-NAV connector. Most of the time the color will match.

Be sure to correctly match the orientation of the plugs to the pinouts shown in the manual. I used the voltages in the manual to double check pin function with a voltmeter to be sure I had the correct wires identified.

It's hard to believe I did this in 2012. I am really loving the Android Head Unit in my Pathfinder.


Do anyone know where did they connect their illumination wires to?

kevil7
Posts: 3
Joined: Wed Jul 09, 2008 9:49 pm

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Shout out to Ninjakills1!

Just finished this today. Took about half a day. I used the climate control from a 2001 pathfinder and swapped in a Sony AX1000. Wiring was straight forward using the Google doc guide once I realized you’re looking at the end (front) of the harness. Not the back.

Best advice was to number the wire harness first then clip the wires one by one and connect that way.

No mounts worked so just ended up gorilla taping it. Seems solid so far, but might create a couple brackets in the future.

Ninjakills1 helped a ton. Thanks again!!
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kevil7
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Joined: Wed Jul 09, 2008 9:49 pm

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Can’t attach pics. Dm me if you need them.

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Rogue One
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kevil7 wrote:
Tue May 05, 2026 6:43 pm
Can’t attach pics. Dm me if you need them.
How to upload pictures on NICOclub: Using IMGUR Pictures can also be added as an attachment.
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kevil7
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Joined: Wed Jul 09, 2008 9:49 pm

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It’s saying the files are too big. Just working from my phone. I’ll upload when I get to a computer


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