P2B28 Code Definition
P2B28 Hybrid/EV Battery Pack Coolant Pump Performance
What Does the Engine Code P2B28 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. "B" in the third character position in a DTC indicates that the is experiencing a malfunction. The last two characters "28" is DTC number. OBD2 Diagnostic Trouble Code P2B28 means that Hybrid/EV Battery Pack Coolant Pump Performance has been detected.
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How Serious Is the Code P2B28?
This issue is not critical yet. Make sure that it is current and fix it early before this leads to more severe issues.