2007 fx35 in need of your help experts

[Ataher]

Try this to see if everything checks out - real quick and easy, this is the operational check of your A/C system:

http://infinitihelp.com/diy/fx/projects/infiniti_fx_ac_self_diagnosis_test.php

Going back to shorting pins, I guess yes you could read trouble codes manually by counting flashes of the MIL without scan tool, with the accelerator pedal this time "advanced way of shorting pins"

http://infinitihelp.com/diy/common/infiniti_engine_codes_read_2.php


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[ymizyed]

I've tried to run the procedure last night but it didn't work with me, since i'm not sure which is the "OFF switch" I've tried the radio volume/off knob and the cruise control off button on the steering wheel, non of them worked

two days back i've noticed the AC was suddenly ice cold (pretty much colder than usual) and the car was driving flawless, which is leading me now to have the dealer re-check/confirm the refrigerant level and get the AC recharged as most of the members have suggested before.

 

[Ataher]

It is the AC "OFF" button, right below the "AUTO" button.


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[ymizyed]

I've successfully ran the procedure last night and nothing show up unusual, only code 25 was showing.
The 4X function was endlessly running and i was hearing motors here and there every while then i pressed the def button (i think this is just identification of the ventilation mode)

 

[ymizyed]

Update: i got the car back from the dealer today. I took an appointment for a full AC service. I got an engineer to pinpoint the noise and the response was that the compressor is going bad and will die soon. I insisted to get the system checked thoroughly for freon, pulleys ...etc and everything is fine per the service report except the compressor noise.

What i've noticed today is that the clutch doesn't disengage no matter what temperature is being set (let the car idle for 15 min while temp is set to 25C and auto, the blower fan was on full at first and then started to slow down as time goes and got cooler inside) Can someone confirm if it should disengage at a certain condition or if should remain engaged?



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[Ataher]

Under normal operating conditions, the AC should disengage when the set temperature is reached.


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---------- Post added at 10:09 PM ---------- Previous post was at 10:03 PM ----------

The manual says: the clutch remains engaged unless: the system main switch, fan switch or ignition switch is turned OFF. When ambient (outside) temperatures are low or when the amount of refrigerant is insufficient, the clutch is disengaged to protect the compressor.


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