P31E7 on the 2021 Nissan Leaf
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| NTB23-024A | 2024-07-19. Service bulletin. VEHICLE WILL NOT START AND DTCS P31E7 AND P0AA6 STORED IN EV/HEV CONTROL MODULE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. |
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| NTB23-024 | 2023-04-10. Service bulletin. VEHICLE WILL NOT START AND DTCS P31E7 AND P0AA6 STORED IN EV/HEV CONTROL MODULE IF YOU CONFIRM The vehicle does not start, AND DTCs P31E7 (RESTART INHIBITION) and P0AA6 (HV BATTERY VOLTAGE SYSTEM ISOLATION) are stored in the EV/HEV Control Module. ACTION Follow the SERVICE PROCEDURE in this bulletin to: 1. Perform ESM diagnosis for DTCs P31E7 or P0AA6 to determine if a Li-Ion battery module triggered the DTCs. • If a Li-Ion battery module did not trigger the DTCs, this bulletin does not apply. Refer to ASIST for further diagnosis. 2. Inspect the Li-Ion battery module for a bent retention plate. 3. Replace the Li-Ion battery module, if applicable. |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.