None of my windows go down?

Tiny
DOENUTZ
  • MEMBER
  • 2011 NISSAN CUBE
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 161,000 MILES
None of my windows go down from any switches on the doors. I tested for continuity with the key on and don't seem to have power going to the master switch. I thought maybe it was the relay or fuse, so I replaced the relay under the hood and tested all the fuses in both fuse boxes but still no power.
Thursday, June 19th, 2025 AT 3:43 PM

8 Replies

Tiny
KEN L
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Okay we are going to turn the key on (or start button) and test for power at the fusible link G 40 amp in the fusible link box on the left side of the engine compartment and then fuse #2 and #8 in the fuse panel on the left side of the dash.

This guide can help:

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

So, the window switch gets its power through the fuses and then from the BCM which might be out if the fuses have power through them. Here is the window wiring diagrams so you can see how the system works. Check out the images (below). Please let us know what happens.
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Friday, June 20th, 2025 AT 12:49 PM
Tiny
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Thanks. That was more helpful than the Nissan parts guy at the dealership. How do you replace the bcm or do I need to to have a garage do that. Thank you.
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Friday, June 20th, 2025 AT 3:19 PM
Tiny
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I don't see a G40 fusible link in the fuse box under the hood. This is what I have.(See photo). What the name of the #2 and #8 fuses? Mine just have labeled names. Thank you
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Friday, June 20th, 2025 AT 3:58 PM
Tiny
KEN L
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Lol, thank you, here is the location of the link G, let me know if it is okay. You can change the BCM, but you will need it preprogrammed, you can get a preprogrammed unit by searching Google or Ebay. Here is the BCM as well which looks like it is under the dash on the driver's side toward the middle. Check out the images (below). Please let us know what happens.
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Sunday, June 22nd, 2025 AT 11:48 AM
Tiny
DOENUTZ
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All the fuses you suggested have continuity. Found the power window BCM fuse down on the side of the battery. Are there any other places to check before I replace the back? Thank you
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Monday, June 23rd, 2025 AT 4:05 PM
Tiny
KEN L
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Replace the back? Do you mean BCM? There are no other fuses, also did you check for power at the fuses?
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Tuesday, June 24th, 2025 AT 12:15 PM
Tiny
DOENUTZ
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Yes I meant BCM. I did check for power at all fuses and they all are good. I guess I'll try replacing the BCM next. Thank you for your time.
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Wednesday, June 25th, 2025 AT 8:08 AM
Tiny
KEN L
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You are welcome, that would be the next step. Please let me know if that fixes it.
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Wednesday, June 25th, 2025 AT 11:03 AM

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