91 Infiniti Q45 need help (climate control)

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dpeffer
Posts: 2
Joined: Sun Jul 31, 2011 1:24 pm
Car: 1991 Infiniti Q45

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After storing car climate controls don't work. I've checked all fuses and found no poblems. Can anyone help with this or guide me to a repair for this problem?


OwnerCS
Posts: 1771
Joined: Thu May 27, 2010 4:34 am

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Welcome to NICO! A member/moderator named Q451990 (Heath) is the resident climate control expert for the G50 (90-96 models).

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Infinitiguy19
Posts: 7787
Joined: Sat Dec 22, 2007 4:58 pm
Car: 1993 Infiniti Q45 188580 Miles
1994 Infiniti Q45a 240000 Miles

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Whats not working exactly?

qship96
Posts: 6624
Joined: Sun Nov 24, 2002 11:31 am
Car: 1996 Infiniti Q45

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Explain "dont work".....does that mean they dont light up? no air movement when pressing appropriate buttons? just no cold air? what exactly are you experiencing?

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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!

If it's the usual blank display issue - here's my thread on it.

fix-for-1990-1993-q45-climate-controlle ... 49899.html

Heath

dpeffer
Posts: 2
Joined: Sun Jul 31, 2011 1:24 pm
Car: 1991 Infiniti Q45

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It seems like no power is getting to any part. no lites, no amb. temp showing, no fan, nothing is working.
thank you for all the fast responses and I look foward to more.

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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
Contact:

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From what you're describing, it's not the "normal" failure. What we typically see is that the display goes blank, but the buttons still light up when the headlights are on, and everything still works - you just don't know what temperature you're operating at...

I would certainly check all of the fuses under the hood as well as at the driver's side kick panel. I'd be concerned about rodent damage to a wiring harness somewhere since you mentioned storing the car for a while...

Beyond that it's time to start reading the factory service manual that is hopefully still in your trunk or storage compartment between the speakers on the rear deck behind the back seat - and tracing wires with a multimeter.

Good luck!

Heath


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