P2686 Code Definition
P2686 Actuator Supply Voltage 'C' Circuit High
What Does the Engine Code P2686 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. "6" in the third character position in a DTC indicates that the computer and auxiliary outputs is experiencing a malfunction. The last two characters "86" is DTC number. OBD2 Diagnostic Trouble Code P2686 means that Actuator Supply Voltage 'C' Circuit High has been detected.
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How Serious Is the Code P2686?
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.