P2402 - OBD II Trouble Code
Our automotive experts have put together the following information about the P2402 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2402 code.
What Does P2402 Code Mean?
OBD-II Code P2402 is defined as a Evaporative Emission System Leak Detection Pump Control Circuit
The Leak Detection Pump is part of the Evaporative Emissions System. After the vehicle has been sitting for a few hours, this pump will turn on and create a vacuum in the EVAP system. The engine computer (PCM) runs this test when the vehicle is off. If the PCM does not see the Leak Detection Pump activate as requested, or does not see a vacuum created in the EVAP System, the PCM will set code P2402.
Common Problems That Trigger the P2402 Code
- Evap leak detection pump failure
- Powertrain Control Module (PCM) failure
- Wiring issue
About the Author
Brad Kava is an automotive expert at RepairPal, the leading online source of auto repair resources and estimates. With many ASE Master certified mechanics on staff who have decades of experience, RepairPal knows all the fine points of car repair.
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