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#1
03-20-2004, 10:30 PM
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'96 Aurora A/C Diagnostics Mode?
With the beginning of spring just around the corner, my HVAC seems to be having a problem regulating the temperature in AC mode. I have to turn the temp down to 60 - then everything cools wonderfully.
Wondering if I have a bad sensor and wanted to enter diagnostics mode to check everything out and hopefully avoid a trip to the dealership. Anyone have a shop manual that describes how to activate the diagnostic mode and what the various readings measure - including operational acceptable ranges? Appreciate any thoughts or suggestions... Thanks - 
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#2
03-27-2004, 08:48 PM
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Re: '96 Aurora A/C Diagnostics Mode?
I'll answer my own question.
Checking the ALLDATA online database, it states that the only way to access the HVAC diagnostic mode is using a scantool with HVAC capabilities. Funny - my 1990 Chevrolet has the ability to enter diagnostics by pressing several buttons on the dash and displaying the results on the LCD control panel. Oh Well.....
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#3
03-27-2004, 11:19 PM
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Re: '96 Aurora A/C Diagnostics Mode?
Did you check your exterior temp sensor under the front "bumper". Mine was taken out by a woodchuck at 75 mph and my climate cotrol did lotsa crazy stuff.
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