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P31EA00 — High-voltage charger – charging module 2 defective
High-voltage charger – charging module 2 defective. The Taycan, Panamera (971), Panamera (972) and Cayenne report this code; below is which control unit sets it on each model and how to read and clear it.
Which models and control units set P31EA00
How to read and clear P31EA00
- Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
- Open STEUER14, pick your car and run a fault scan: every control unit is read, and P31EA00 shows with its status, its full description and the freeze frame when the unit stores one.
- Fix the cause first, then clear the fault memory and scan again to check it stays away. Reading and clearing fault codes is free on every control unit.
More about fault memory in the manual →
Download STEUER14 — free fault readingOther codes of the On-Board Charger 2
| P31E100 | CHAdeMO charging socket – electrical fault |
| P31E200 | Charging socket A, AC electrical system supply – short circuit |
| P31E400 | Immediate upload button, Open circuit |
| P31E500 | Button for loading profile, Open circuit |
| P31E700 | AC electrical system supply line – open circuit |
| P31E900 | High-voltage charger – charging module 1 defective |
| P31EB00 | High-voltage charger, line conductor L2 – undervoltage |
| P31EC00 | High-voltage charger, line conductor L2 – overvoltage |
| P31EF00 | Line conductor energy throughput – difference too high |
| P31F000 | Switch-off due to coolant overtemperature |
| P33DC00 | Hybrid/high-voltage battery – charging voltage too low |
| P33DD00 | High-voltage battery – setpoint voltage exceeded |
All 110 codes of this control unit →
Fault names come from the manufacturer's diagnostic data. STEUER14 is independent and not affiliated with Porsche AG. A code tells you what a control unit detected, not always which part failed — check wiring, supply voltage and related codes before replacing parts. STEUER14 shows each fault's full description, status and freeze frame on the car.