P2402: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P2402 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

18 complaints filed with NHTSA mention P2402, 15 of them since 2015, across 14 different models. The component owners most often filed it under: fuel/propulsion system.

Most-reported models

VehicleComplaintsModel years reported
VOLKSWAGEN TIGUAN32022

Manufacturer service bulletins that name P2402

23 technical service bulletins and manufacturer communications filed with NHTSA mention P2402, from 4 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • VOLKSWAGEN PASSAT (2022, 2023, 2019), bulletin 10233609: Customer states MIL-on, fault P0456 and/or P0442 stored in ECM memory Customer states MIL-on, fault P2402 stored in ECM memory Customer states rattle from beneath the vehicle Customer states MIL-on, fault P0456 and/or P0…
  • VOLKSWAGEN ARTEON (2022, 2023, 2019), bulletin 10233282: Customer states MIL-on, fault P0456 and/or P0442 stored in ECM memory Customer states MIL-on, fault P2402 stored in ECM memory Customer states rattle from beneath the vehicle Customer states MIL-on with P0087, P1020, P05…
  • VOLKSWAGEN ATLAS (2022, 2023, 2019), bulletin 10235140: Customer states MIL-on, P0442 stored in ECM memory Customer states MIL-on, fault P2402 stored in ECM memory Customer states rattle from beneath the vehicle Customer states MIL-on, fault P0456 and/or P0442 stored in ECM m…
  • ACURA TLX TYPE S (2022), bulletin 10208210: Service Bulletin - Due to PGM-FI software errors, vehicles that experience an evaporative leak check module (ELCM) circuit failure may not be able to turn off the MIL and clear DTC P2402, even if repaired. Some 2021 TLX …
  • LAND ROVER DISCOVERY SPORT (2019, 2020), bulletin 10168839: The Check Engine MIL is on. DTC P2402-00 is stored in the PCM.
  • JAGUAR E-PACE (2019, 2020), bulletin 10168839: The Check Engine MIL is on. DTC P2402-00 is stored in the PCM.

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.