How to Diagnose and Fix P2402 Engine Code - OBD II Trouble Code Explain

OBD-II Code P2402 means there is a problem with the Evaporative Emission System Leak Detection Pump Control Circuit. This pump is responsible for creating a vacuum in the EVAP system when the vehicle is off, and if the PCM does not see it activate as requested, the code P2402 will be set.
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