P2E4E code meaning
Battery Charger Coupler Temperature C Too High
What P2E4E means
P2E4E is no sensor fault: measuring point C works, but the contact it watches has become too hot, so charging is cut back or ended. For orientation, a DOE laboratory report from August 2025 compares the IEC 62196-1 ceiling, 90 °C when the air is at 40 °C, with the fixed 100 °C of SAE J3400. No manufacturer documents P2E4E publicly. Others show the same logic under their own codes: Porsche stops Taycan charging when the NTC of the left or right charging inlet stays at 90 °C or above for more than 14 s (P31D200), and Hyundai addresses P1BAD on the 2022-2023 Ioniq 5 with a charge-management software update. Honda's Fit EV bulletin names a poor contact to the station plug as the heat source and lets the car finish at lower current. Heat from worn pins, dirt or a weak cable is typical. Sensor C circuit faults are P2E4A to P2E4D.
P2E4E at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2E4E
- Charging slows down or stops partway through
- Charge indicator at the inlet flashes a fault or reduced-power state
- Discoloured or heat-marked pins at the plug or inlet
Common causes of P2E4E
- Most likelyWorn, widened or dirty pins in the station plug or the vehicle inlet
- PossibleCharging cable with thin conductors heating up at high current (Porsche)
- PossibleLong high-current session in strong heat or direct sun
- Less likelyTemperature logic in the charging software, update available
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Charge port temperature sensorCharge portOn board charger
What each part of P2E4E means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 4E | The exact fault in that area. |
What to do next
- Note P2E4E and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2E4E
What does P2E4E mean?
P2E4E means "Battery Charger Coupler Temperature C Too High". P2E4E is no sensor fault: measuring point C works, but the contact it watches has become too hot, so charging is cut back or ended. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E4E?
P2E4E does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P2E4E fail an emissions test?
P2E4E is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P2E4E to fix?
Difficulty: medium. A typical repair takes 0.3 to 3 hours of work. This is a job for a workshop.
Will P2E4E clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.