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Hvac Diagnostic Codes


isiginamo
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I think this is just a method of checking HVAC system... but this is what my car did.

It displayed a number 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, then back to 20... over and over and over.

And that is all?

Does it mean anything?

Thanks alot! :pirate: Happy Halloween

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I think this is just a method of checking HVAC system... but this is what my car did.

It displayed a number 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, then back to 20... over and over and over.

And that is all?

Does it mean anything?

Thanks alot! :pirate: Happy Halloween

I have to shine a light, a BRIGHT one, on the solar radiation senor in order to get the system to "test" for codes beyond that one.

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