A/C not working, HVAC wiring diagrams needed

Tiny
DAVE HUBBARD
  • MEMBER
  • 2016 NISSAN ALTIMA
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
Air Conditioning does not work on my car listed above, base. I bought it with a rebuilt title from front end collision. I have verified the compressor clutch engages and compressor is free. New high/low pressure switch. Evacuated and recharged appropriately. I am now trying to go through all of the sensors to test them, but I need to know which ones exist and how they are operating to move forward. So, I am trying to find a full wiring diagram. Specifically, to HVAC, but also the ECM connections. I found damage to the ECM connectors and need to trace back specific wiring to see if any is affected. This is fun!
Thursday, July 7th, 2022 AT 7:50 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 POSTS
Hi,

I attached the wiring schematic for the HVAC circuits below. This is for manual climate control.

I had to cut each of the two pics in half to make them readable for you. I did overlap them so you can follow from one to the next.

Here is a link you may find helpful:

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

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.
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Thursday, July 7th, 2022 AT 1:53 PM

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