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fault codes/duramax

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does anyone know where i could find  trouble codes online for the duramax diesel motor.  reg gm sites don't list diesel codes.






Have you tried Google'ng OBDII code ? it should pop up with a description of the code, try Googling with the Pxxxx code +Duramax syntax.


I keep getting the B0229 code, when I look it up it says HVAC actuator malfunction but Air Conditioning seems to work just fine. I keep clearing the code and it keeps coming back. One of these days I need to take it in but I have to reload my HypertechIII when I do that.

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