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Mode Door Motor Replacement......W/PICS.

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Mode Door Motor Replacement......W/PICS.

Old 12-03-2018, 07:17 PM
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Mode Door Motor Replacement......W/PICS.

Fixed my non working climate control with a mode door motor replacement. Took some pics while I was at it to hopefully help the next guy who does it. The beast in question is my '99 GLE.
Here's the original thread...….
https://maxima.org/forums/4th-genera...e-control.html

First I ran diagnostics as per the FSM. Everything pointed towards a bad mode door motor. Found a new one online for $72 and ordered it...………..
https://www.ebay.com/itm/Genuine-Nissan-A-C-Mode-Door-Actuator-Motor-27731-2L900/253300410157?ssPageName=STRK%3AMEBIDX%3AIT&_trksid =p2057872.m2749.l2649

They're 2 types. There's a 2-pin connector unit with a single arm and a 3-pin connector unit with a dual arm. It's best to pull the original motor to double check before ordering.

Unless you're a contortionist, you're gonna want to pull the drivers seat. It'll save you a ton of headaches!

My GLE has power everything so there's more connectors than most. Slide the seat all the way up and pull the rear bolt covers with your fingers or a flat blade screwdriver.



A 14mm socket removes the bolts.

Slide the seat all the way back and remove the front bolts.



Here's a trick. If you have full power seats, after removing the bolts slide the seat back to the middle, then fold the seat back all the way up. This is necessary to get the seat out because now you're gonna disconnect the battery and you'll have no power options.

Disconnect the battery.



Tip the seat up to access the connectors. Disconnect the 4 white connectors (red arrows) then disconnect the yellow connector (yellow arrow). That's your air bag and one of the reasons you disconnected your battery.



Lift the seat out and now you have plenty of access to the mode door motor.
There it is...……………..



Disconnect the 3-pin connector at the 3 o'clock position. Then remove the 2 hex head phillips screws at the 10 and 4 o'clock positions. A stubby phillips and/or a 1/4" drive 8mm socket are your friends.





Carefully remove the motor, paying particular attention to the 2 holes that the rotating arm connects to on the back side. Install the new unit and push the tabs into the aforementioned holes, tighten the 2 screws, reinstall the 3-pin connector, all seat connectors, the seat and reconnect the battery. Test for proper operation and you're good to go.

Last edited by evintho; 12-03-2018 at 07:21 PM.
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Old 12-03-2018, 08:29 PM
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It is great that you did this pictorial for us.

All I can add is that people should see if they can get to the motor before removing the seat. I have replaced several of those motors and did not feel the need to remove the seat.
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Old 12-07-2018, 07:29 PM
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OMG Thanks, I just had to replace mine today. Thanks for the detailed write-up, this is why I keep my 99 maxima, these forums are priceless.
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Old 12-27-2018, 02:06 PM
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Does anyone know what sequence of buttons to push on the automatic ac to get a diagnostic code from it? My ac is not routing air to the lower vents or windshield only front vents. I already replaced the Mode door motor and my heat works now.
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Old 12-27-2018, 02:25 PM
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Originally Posted by Morpheus2010 View Post
Does anyone know what sequence of buttons to push on the automatic ac to get a diagnostic code from it? My ac is not routing air to the lower vents or windshield only front vents. I already replaced the Mode door motor and my heat works now.
Once you have the code, do you even know what the code will mean w/o the FSM? You really should be consulting the FSM, the HA section, page 70. Download it now before it's gone for good. See signature.

To get into diagnostic mode, start the car and within 5 seconds, press and hold the OFF button for 5 seconds...
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