HVAC air conditioner and heater wiring diagrams please?

Tiny
BM@SCUBANATION.COM
  • MEMBER
  • 2015 NISSAN ROGUE
  • 80,000 MILES
I recently changed my battery to discover there was no power to the A/C controls. I checked the 10A fuse (it's okay) but could it be the relay that got fried when I changed the battery? The fuse I checked was for ACC (I assumed it was the A/C) behind the panel when you open the driver door. I did not check the one under the hood.
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Monday, September 23rd, 2019 AT 6:02 AM

5 Replies

Tiny
KEN
  • ADMIN
Hello

There are 7 fuses and three fusible links that need to be checked. can I ask if a set of jumpers was used backwards? if so it could have taking out a fusible. Here is a guide to help check the fuse and for power with the air conditioner heater wiring diagrams so you can see which fuses to check and how the system works. Also the fuse locations are below as well.

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

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Tuesday, September 24th, 2019 AT 11:59 AM
Tiny
JLEMON15
  • MEMBER
  • 2015 NISSAN ROGUE
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 42,000 MILES
The A/C switch from recycle air to outside air by itself, in turn cause the air to heat up inside the car. I have to put the control back to recycle my self.
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Friday, May 28th, 2021 AT 11:48 AM (Merged)
Tiny
KEN
  • ADMIN
Hello,

This sounds like you have a blend door actuator that is not working right or the AC amplifier has gone out but to be sure here is the wiring diagrams and fuses that needs to be checked for power:

Fuse # 17, 27, 20, 40 and 50

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

and

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

Here are the wiring diagrams so you can see how the system works and the component locations.

Please run down these guides and diagrams and report back.

Cheers, Ken
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Friday, May 28th, 2021 AT 11:48 AM (Merged)
Tiny
SPEEDHOBBIT
  • MEMBER
  • 2010 NISSAN ROGUE
  • 2.5L
  • 4 CYL
  • 125,232 MILES
The blower motor is full blast even when the controls are off. I have changed the AC amp control as well as the blower relay. Where do I go from there?
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Friday, May 28th, 2021 AT 11:48 AM (Merged)
Tiny
KEN
  • ADMIN
It looks like the motor is controlled by the air conditioner amplifier. You will need to run some wiring/power and ground testing before you confirm the amplifier is out.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

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

M50 is the AC amplifier in the diagrams (below).

Please run some tests and get back to us.

Cheers, Ken
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Friday, May 28th, 2021 AT 11:48 AM (Merged)

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