Flashing Climate Control - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-31-2008, 10:22 PM   #1
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Default Flashing Climate Control

My electronic climate control flashes at 49 degrees almost all of the time, does anyone have any ideas of what would be making this do this?
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Old 03-31-2008, 10:42 PM   #2
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I have codes 10, 13, 15, 140 and 152 does anyone know what i can do to fix any of these?
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Old 04-01-2008, 12:26 AM   #3
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Diagnosing climate control faults (through 1993):

http://www.bonnevilleclub.com/forum/...e=article&k=87
that should tell you what'* causing the blinking ECC, but it'* very likely to be the airmix actuator. Do a search on airmix actuator and you'll find tons of information, but ONLY if that'* the code you retrieve.

On your codes from the PCM, you're doing something wrong. Those codes are wacky, and all of them should be 2-digit only.

Try this:
http://www.bonnevilleclub.com/forum/...e=article&k=57

Ignore code 58 if you get it. It'* a known bug in the 1992 PCM.
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Old 04-01-2008, 12:31 AM   #4
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Thanks i will try that tomorrow. I tried to code thing twice and got all of those both times.
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Old 04-01-2008, 12:38 AM   #5
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Every code is only two digits. Ignore the first code 12 that will flash three times, and again when 12 flashes 3 times at the end.
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Old 04-01-2008, 02:22 PM   #6
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It says on the code thing that the ones with a prefix of 1 are past history codes which would be my 152 and 140
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Old 04-01-2008, 02:25 PM   #7
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That is incorrect. All codes are only two digits. Those are not valid codes. You're reading it wrong.
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Old 04-01-2008, 03:00 PM   #8
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Not knowing at all and just guessing, but could the 152 and 140 be indicating past history codes for 52 and 40?
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Old 04-01-2008, 03:03 PM   #9
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No, it will ONLY flash 2-digit codes. And there are no codes with those numbers.

http://www.bonnevilleclub.com/forum/...e=article&k=70
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Old 04-01-2008, 03:27 PM   #10
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Ah, OK! That clears it up for me.
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