C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

A/C Trouble Codes

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Old Apr 29, 2002 | 03:45 PM
  #1  
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From: Irmo, S.C
Default A/C Trouble Codes

Can anyone tell me the button sequence to check for a/c trouble codes on the climate control unit?

TIA,
Jason
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Old Apr 29, 2002 | 03:53 PM
  #2  
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From: Lacey WA RVN 68-69
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Default Re: A/C Trouble Codes (97Supra)

Hold down the up and down fan speed button until 00 appears. then use the up or down arrow to display the codes.
Check this link: http://www.idavette.net/tech/c4diag.htm
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Old Apr 29, 2002 | 03:55 PM
  #3  
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From: Irmo, S.C
Default Re: A/C Trouble Codes (c4cruiser)

Thanks man.

Jason
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Old Apr 29, 2002 | 04:15 PM
  #4  
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From: Irmo, S.C
Default Re: A/C Trouble Codes (c4cruiser)

Thanks for the link. I ran the codes, and it doesn't appear that any are thrown....although I might be reading something wrong. For the 00 parameter it showed a code of 00 (without the dash) so that tells me no codes are thrown, correct? The link you provided didn't have explanations for all the parameters my c. control gave, but there were 2 parameters that I'm not sure on. THe first was para: 10 which is blower pwm. My code was 00 and the value on the link was 0-128 v. Is that anything? Then on parameter 30, the values listed for Stored Full Hot Value were 0-50. My car gave code 51 for this. Does any of this mean anything to you or anyone?

One more thing I just caught. Parameter #35 on the link says this: 35
Compressor On Time
.1 second increments

My code for that was 00. Mean anything?

Thanks again,
Jason


[Modified by 97Supra, 3:00 PM 4/29/2002]
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