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Driver side seat climate control not working?

Tiny
TOMR48
  • MEMBER
  • 2017 INFINITI QX60
  • VR6
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
Driver side has no heat and no cool function. The light does not light up under heat or cool. The passenger side works fine. I only found one fuse (according to the fuse diagram) and it is good.
Wednesday, December 4th, 2024 AT 2:41 PM

25 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

There is a fuse for the driver's side and a different one for the passenger side. I attached a few pics below. The first picture shows the location of the fuses. Check fuse 68 in the fuse/relay box under the hood, left side. Make sure there is power to and from it as well.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If the fuse checks out to be good, check the red wire under the seat which powers the heater.

Let me know what you find.

Take care,

Joe

See pics below.
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Wednesday, December 4th, 2024 AT 8:08 PM
Tiny
TOMR48
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Fuse is good. I am not sure what red wire that you are referring to, but everything looks connected. I sent a video.
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Thursday, December 5th, 2024 AT 1:03 PM
Tiny
TOMR48
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In order to check the control module for seat climate control, I will need to remove the seat. Do you have any instructions on driver seat removal or a way to check and if necessary, swap out the module?
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Thursday, December 5th, 2024 AT 3:23 PM
Tiny
TOMR48
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I believe that driver and passenger modules are identical, and a swap will help diagnose if this part is bad.
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Thursday, December 5th, 2024 AT 3:24 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

I copied from your video a pic. I have an arrow pointing to the red wire in question. Check to see if there is power present.

Next, I attached the directions below for removing the seat. The last three pics below are for the removal of the seat module.

Take a look and let me know if this helps.

Take care,

joe

See pics below.
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Thursday, December 5th, 2024 AT 6:48 PM
Tiny
TOMR48
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I did not receive a picture showing the red wire to check. It is impossible to check any of the red wires without removing the seat to gain access. Unless you have a trick.
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Thursday, December 5th, 2024 AT 10:28 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

I attached the picture below. Based on the picture, you should be able to reach the wire. If not, the seat will need to be removed.

Let me know.

Joe
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Friday, December 6th, 2024 AT 5:56 PM
Tiny
TOMR48
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Yes there is power. I had to unplug the module to measure. While the module was unplugged, I lost control of seat adjustments. So, is this the correct wire? Next step?
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Sunday, December 8th, 2024 AT 12:12 PM
Tiny
TOMR48
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I lay replied on Friday. It is now Tuesday, and I haven’t received a reply. There is power at red wire shown. When I unplugged to check for power, the driver seat adjustments stopped working. Is this the correct module? So, what is next?
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Tuesday, December 10th, 2024 AT 7:34 AM
Tiny
TOMR48
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Next step?
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Wednesday, December 11th, 2024 AT 6:48 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
If you are getting power to the red wire this means the relay is good, if you have ground at the grey or black wire, (module unplugged) then the module is bad and you need a replacement. Please let us know what happens.
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Thursday, December 12th, 2024 AT 9:57 AM
Tiny
TOMR48
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Is this the model number 28565-9NJ0A?
This seat has heat and cool. 2017 QX60

I also read that if the heating element was shorted out that it could also prevent the switch from lighting up
Is the passenger module exactly the same? If so, I could test by swapping?
Please let me know.
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Thursday, December 12th, 2024 AT 12:00 PM
Tiny
KEN L
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Yes, a shorted heating element or a fault in the seat heating/cooling circuit can prevent the seat control switch from functioning or lighting up. The driver and passenger seat modules are not interchangeable. Here are the wiring diagrams so you can see how the system works and a guide to help you check the wiring connections:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Please let us know what happens.
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Thursday, December 12th, 2024 AT 6:13 PM
Tiny
TOMR48
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Can I simply unplug the individual modules, thereby removing the possibility of a short causing the problem? If so can you provide the location of the modules. I don’t want to spend $300 for a replacement module unless I know for sure that is the problem.
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Friday, December 13th, 2024 AT 8:18 AM
Tiny
KEN L
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The modules are under the seats. Both modules work independently of each other. Check out the images (below). Please let us know what happens.
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Friday, December 13th, 2024 AT 12:49 PM
Tiny
TOMR48
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I know where the seat control unit is. I need to know where the other modules are located so that I can unplug them, one at a time to see if the light on the switch illuminates.
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Friday, December 13th, 2024 AT 1:38 PM
Tiny
TOMR48
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I unplugged the blower and the gentherm. The heat/cool switch did not illuminate. Is there anything else that could be shorting the control module out or could the switch itself be the problem? So, how do I rule out the switch itself?
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Saturday, December 14th, 2024 AT 10:02 AM
Tiny
KEN L
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"other modules"? I am not sure what other modules you mean, there are only the seat modules in this system. You can use a voltmeter to test through the switch by looking at the wiring daigrams. Use the guide above to see how to test.
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Saturday, December 14th, 2024 AT 10:25 AM
Tiny
TOMR48
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I noticed that the wiring diagrams that you sent all say passenger. Is the driver side is different because you told me that the control modules were not interchangeable.
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Saturday, December 14th, 2024 AT 12:48 PM
Tiny
KEN L
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Please look again, the wiring is for both and you will notice the wiring is different from side to side.
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Sunday, December 15th, 2024 AT 10:34 AM

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