A/C compressor not getting voltage

Tiny
YEEP
  • MEMBER
  • 2017 NISSAN VERSA
  • 1.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 50,000 MILES
Compressor is not kicking on. Checked the fuse and it is good. I couldn't find a relay for it. I jumped the low pressure sensor to see if that was the problem but still no voltage. I wired the compressor directly to the battery and it kicks on. Maybe a wire diagram could help me pint point the issue?
Sunday, August 2nd, 2020 AT 10:00 PM

3 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

I've attached the A/C system wiring diagram below that you requested. I've cut both pictures in half so you can view larger. Hope this helps and thanks for using 2CarPros.
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Sunday, August 2nd, 2020 AT 10:23 PM
Tiny
YEEP
  • MEMBER
  • 2 POSTS
Thank you. Turns out the the low pressure senor is getting voltage but only 5v. Is that enough for it to operate properly?
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Monday, August 3rd, 2020 AT 8:37 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Just curious. Has the A/C system been worked on previously? There is a cut-out switch within the system to shut off the A/C compressor if low refrigerant is detected to prevent damage to the system until proper level is restored. Just wondering if you might have a leak in the system.I'll get the low pressure sensor voltage value for you. Hope this helps and thanks again for using 2CarPros.

Danny-
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Wednesday, August 5th, 2020 AT 11:39 PM

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