FAULT CODE READING
OBD2 codes.
A code identifies a signal or system that needs to be checked, not a part you should replace.
Got an OBD2 Bluetooth adapter? Read the codes straight from your car.0 code entries · 1 related fault
P31E7
- System
- Engine and transmission (P)
- Code type
- Manufacturer-specific code: its exact meaning depends on the make.
Related faults in the database
The car will not start with codes P31E7 and P0AA6 because of a battery module with a bent retention plate (Leaf e+ 62 kWh)High-voltage battery
- Engine / equipment
- 62 kWh lithium-ion battery modules: Nissan Leaf (ZE1) e+
- Period mentioned
- 2019–2025
- Symptoms
- The car does not start and has codes P31E7 (restart inhibition) and P0AA6 (high-voltage system isolation) stored.
- Possible cause described
- According to Nissan bulletin NTB23-024A (USA, May 2024) for the 2019–2025 Leaf ZE1 with the 62 kWh battery, if a battery module triggered the codes, it is inspected for a bent retention plate and, if so, the module is replaced.
- Check for the garage
- Do not keep trying to start it: it is a high-voltage fault. Call for assistance and have a Nissan dealer follow the bulletin’s diagnosis to see whether a battery module is the cause.
- Cost cited in the source
- No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.