03 Climate Control Codes

[Elsie]

Ran the Dual Climate Control diagnosis test on my 03 Tbird.

Got codes 27 - 96
And code 24 - 26


Can't seem to find anyplace to find out what those codes mean. Any help would be appreciated.

Thanks

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[Gus Gutz]

How did you run the test? I will look up in the manual and see what I can find. It's an 02 manual but I will be the codes didn't change

 

[HKS]

How did you run the test? I will look up in the manual and see what I can find. It's an 02 manual but I will be the codes didn't change

Codes usually have a letter before number like C1925

 

[BluByeU]

I looked in my 2005 shop manual & am sorry to say that those two codes, 2796 & 2426 are not listed.
Can you share with us what the Climate Control is or isn't doing? Possibly with that info some of us can help troubleshoot the problem.

To HKS you are correct the codes should have a letter but that is only if using a the DTC port & a reader. If one uses the Climate Control self test the Climate Control panel only displays codes as four digits.

 

[Elsie]

The diagnosis I ran is - turn on key, Hit the "Defrost" and "Off" button at same time, then hit "Auto". Climate control then is suppose to diagnosis problems in Dual Climate Control. It did that then flashed 27-96, then 24-26. I'm not getting any heat, but I've got other problems too - thermostat isn't opening, when I get that fixed I'll run diagnosis again.

 

[BluByeU]

Elsie your problem may also be the dual temperature control valve. This valve is becoming a frequent problem as the 2002-05 Birds are getting older. This valve control is done by the Dual Climate Control system. Its purpose is to open & close as needed to bring heated water into the climate control system. If it does not open no heated water will get into the cabon heater & there will be no heat.

How do you know the thermostat is not opening?
What does the temp gauge show as you drive?

 

[Elsie]

BluByeU, Radiator hose on one side of thermostat is HOT, other side cool. Electric cooling fans are coming on, which tells me engine is getting hot. I replaced the thermostat about a year and a half ago - hard to believe it went out that quick though.

Too close to Christmas to work on it now, and then it will be too cold in January and February. Hope to get motivated enough to get it going by spring though.

 

[BluByeU]

🙁 sorry to hear that about the thermostat. As soon as those beautiful days of early Spring come around you"ll be motivated. I'm certain of that.