Question about 2003 Nissan Altima

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When I turn on the air conditioner, it blows really hot air. also, when i set the alarm, the horn does not sound.

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As far as the A/C goes. Does the A/C compressor turn on?? if so, than you may have a MODE door problem in the air box. Do all heater knobs turn freely or is one of the binding up?? I have seen the MODE door gears falling off and sticking the MODE door on hot setting. Test knobs for movement. If A/C compressor is not coming on, than you may have a leak and all freon leaked out or it could be just a simple thing like fuse or relay. Test to see if A/C compressor comes on. As far as the alarm goes, you need to switch your security from silent to non silent mode. Here is how its done. Hold BOTH lock and unlock buttoms together for about 5 seconds. (the directionals or sidelamps will flash)That will switch the alarmmode to NON SILENT and back to SILENT if you need to.

Posted on Jul 28, 2008

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