P24D3 Code Definition
P24D3 Reductant Heater 'B' Sense Circuit
What Does the Engine Code P24D3 Mean?
Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "2" in the second position means that this is a ISO/SAE controlled 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 "D3" is DTC number. OBD2 Diagnostic Trouble Code P24D3 means that Reductant Heater 'B' Sense Circuit has been detected.
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How Serious Is the Code P24D3?
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.