P0412 Code Definition
P0412 AIR System Switching Valve 'A' Circuit
What Does the Engine Code P0412 Mean?
Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "0" in the second position means that this is a generic OBD-II (OBD2) DTC. "4" in the third character position in a DTC indicates that the auxiliary emission controls system is experiencing a malfunction. The last two characters "12" is DTC number. OBD2 Diagnostic Trouble Code P0412 means that AIR System Switching Valve 'A' Circuit has been detected.
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How Serious Is the Code P0412?
For now, this issue is not serious. Carly recommends you to check this issue on a regular basis and check if it gets worse later on.
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