A/C Compressor not working!

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nick1howard
Posts: 1
Joined: Tue Jun 28, 2016 4:51 pm
Car: 1998 Infiniti Q45

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Hello All!

I have a 1998 Infiniti Q45. The A/C compressor has not kicked on after this past winter. Last summer, it was pushing out ice cold air. I checked the fuses and everything looks good there. I checked the high and low pressure, and everything is normal there too. I was told to check the compressor relay. Problem is, I can find the relay anywhere! Does anyone know where the relay may be? Also, does anyone have any tips for me troubleshooting this?

Thanks a Ton!


-Nick

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Q451990
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Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
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:welcome: to NICO Nick!

Your car's factory service manual is available at http://www.infinitiservicemanual.com

Assuming the relay is good, you need to find out what sensor isn't checking in "good" with the ECU. How did you check the high and low pressures with the compressor not running?
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