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Moonroof fully closed, Sunshade Fully Open - No movement

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frank123

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Discussion starter · #1 ·
The sunshade appears to be fully open - which would be required in order to open moonroof either tilt or slide
Nothing functions and the shade cannot be closed
Checked the forums for anything similar but cannot find anything
Looked for information on fusing but appears that both the moonroof motor and sunshade motor are powered via the BCM
Anyone with thoughts?

Thanks in advance
 
#2 ·
frank123 said:
The sunshade appears to be fully open - which would be required in order to open moonroof either tilt or slide
Nothing functions and the shade cannot be closed
Checked the forums for anything similar but cannot find anything
Looked for information on fusing but appears that both the moonroof motor and sunshade motor are powered via the BCM
Anyone with thoughts?

Thanks in advance
Click to expand...
You should have bumped this thread rather than start a new one. The moonroof and sunshade each have different motors, but they share the same power feed and ground. If fuses are good than more likely the switch is bad if both don't work, but check for power at each of the motor's connectors to be sure. Service manual can be found at: https://www.nicoclub.com/nissan-service-manuals

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#3 ·
Follow this procedure after opening the moonroof, leaving it open, and disconnecting the battery for 15 minutes.

It's extremally important to keep pressure on the switch in the closed position for at least 5 seconds until after all movement has stopped.

You can download the entire RF.PDF, which has full diagnostics, if the reset doesn't work.

Good luck.

Have a good day.
 

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Discussion starter · #4 ·
I need coffee said:
You should have bumped this thread rather than start a new one. The moonroof and sunshade each have different motors, but they share the same power feed and ground. If fuses are good than more likely the switch is bad if both don't work, but check for power at each of the motor's connectors to be sure. Service manual can be found at:
Click to expand...
 
Discussion starter · #5 ·
Thanks for suggestions
Sorry for the second thread - not the intent to clutter things up

Since both the sunshade and moonroof are sequenced together, I do not believe both motors can run at the same time. The Sunshade needs to be fully open before either opening the Slide or Tilt of the Moonroof. This is at least true on my 2016 SL
I also think that the chance of both motors dying at the same time is minimal.
As originally titled, the Moonroof is completely closed, the Sunshade (appears to be) completely opened.
I say appears to be because unless it is fully open, the Moonroof will not operate.
I do have the entire maintenance documentation which I acquired when I purchased the MO new in 2016. And have studied it in depth.
There are no fuses identified in the fuse panel(s) for the Moonroof or Sunshade motors - which is part of my issue. There are common fuses for the BCM - which appears to be the source of power for the Moonroof/Sunshade. But the BCM has many other items powered/controlled by it and they are all functional.

I am wondering if possibly the Sunshade is not providing the fully open signal such that the moonroof can be operated.

I did see the thread on resetting and it makes sense IF the Moonroof and/or Sunshade operates but that is the problem. Neither operates.
I am thinking that disconnecting the battery might "reset" what might be ailing the BCM??? This is probably the easiest thing to try but the tech document seems to indicated performing that with the window open.

Again - I apologize for creating the second thread.
 
#6 ·
frank123 said:
Thanks for suggestions
Sorry for the second thread - not the intent to clutter things up

Since both the sunshade and moonroof are sequenced together, I do not believe both motors can run at the same time. The Sunshade needs to be fully open before either opening the Slide or Tilt of the Moonroof. This is at least true on my 2016 SL
I also think that the chance of both motors dying at the same time is minimal.
As originally titled, the Moonroof is completely closed, the Sunshade (appears to be) completely opened.
I say appears to be because unless it is fully open, the Moonroof will not operate.
I do have the entire maintenance documentation which I acquired when I purchased the MO new in 2016. And have studied it in depth.
There are no fuses identified in the fuse panel(s) for the Moonroof or Sunshade motors - which is part of my issue. There are common fuses for the BCM - which appears to be the source of power for the Moonroof/Sunshade. But the BCM has many other items powered/controlled by it and they are all functional.

I am wondering if possibly the Sunshade is not providing the fully open signal such that the moonroof can be operated.

I did see the thread on resetting and it makes sense IF the Moonroof and/or Sunshade operates but that is the problem. Neither operates.
I am thinking that disconnecting the battery might "reset" what might be ailing the BCM??? This is probably the easiest thing to try but the tech document seems to indicated performing that with the window open.

Again - I apologize for creating the second thread.
Click to expand...
Try the procedure with the moonroof closed after doing the battery disconnect/reconnect.

You can also gently nudge the sunshade back to make sure it's in the fully retracted position. Gently push at both ends at the same time using only one finger on each hand. If it doesn't move, don't force it.

The moonroof/sunshade function can easily get confused and out of sequence. Hopefully a reset will resolve the issue.

Good luck.

Have a good day.
 
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Discussion starter · #7 ·
PaulDay said:
Try the procedure with the moonroof closed after doing the battery disconnect/reconnect.

You can also gently nudge the sunshade back to make sure it's in the fully retracted position. Gently push at both ends at the same time using only one finger on each hand. If it doesn't move, don't force it.

The moonroof/sunshade function can easily get confused and out of sequence. Hopefully a reset will resolve the issue.

Good luck.

Have a good day.
Click to expand...
Battery was disconnected for about 1/2 hour to be sure
After reconnecting the battery and trying the procedure - "holding the close switch for 5+ seconds" - there was still no movement on either the Shade or the Window
So I will surmise the the reset is not the way to get this problem corrected

I do appreciate the time you took Paul to respond - just not sure what to do next
I think I will go through the diagnosis again to try and eliminate and/or solve this problem

Any other thoughts you might have are welcome

Thanks,
Frank
 
#8 ·
You're saying that nothing happens when you operate the switch so I would verify that the moonroof and sunshade motors are getting power and ground right at the connectors and if those check out then follow the troubleshooting steps for the switch. There is a serial link between the two motors and my guess is that's how the communication of the sunshade position is sent to the moonroof motor, but if there was a problem with that communication link then I think you should still be able to open/close the sunshade if the switch and sunshade motor are functional.

BTW, do you recall the last time that the moonroof/sunshade worked normally? Did anything noteworthy happen when they stopped working?
 
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Discussion starter · #9 ·
I need coffee said:
You're saying that nothing happens when you operate the switch so I would verify that the moonroof and sunshade motors are getting power and ground right at the connectors and if those check out then follow the troubleshooting steps for the switch. There is a serial link between the two motors and my guess is that's how the communication of the sunshade position is sent to the moonroof motor, but if there was a problem with that communication link then I think you should still be able to open/close the sunshade if the switch and sunshade motor are functional.

BTW, do you recall the last time that the moonroof/sunshade worked normally? Did anything noteworthy happen when they stopped working?
Click to expand...
A couple weeks back when I was on a visit to client's site I noticed more road noise than usual. I do not remember tilting up but that it was so I closed it. Then I cycled up and down and left closed.

Last week when the sun was out my better half reached up to close the sun-shade and there was no movement. So nothing out of the ordinary.

I was hoping that this problem might have a simpler solution than needing to drop the headliner. The service manual does show the concept to lower the "front room" dome compartment that holds the Moonroof / Sunshade switch so I guess that is the next step.
 
#10 ·
Frank,

Did you ever figure out what was ailing your moonroof? I have a 2018 Murano and the sunshade just stopped closing. It opened fine today and five minutes later would not close. The rest of the moonroof assembly works fine but I can not get the sunshade to close. I do hear a click (like a relay maybe) when I try to close it but nothing happens.

Anyone have any knowledge of this issue?
 
Discussion starter · #11 ·
Hey Jason

No luck getting this solved.
My problem appears to be linked to a non-moveable sunscreen.
The sunscreen needs be fuly open BEFORE the sunroof glass can be opened. The screen appears to be fully open but does not slide in either direction. Using electrical schemes and troubleshooting, the switches operate but sunscreen motor does not.
We went on a long summer trip so ended up buying some static window block to keep interior as cool as possible.

Just living life with Murano and non-functional sunroof.

Frank
 
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