P2E8E code meaning
Battery Charger B Charge Sequence Signal 2 Circuit High
What P2E8E means
P2E8E concerns the second CHAdeMO sequence line, which works differently from the first: the station closes switch d2 to tie the line to ground, completing the circuit that sequence signal 1 feeds, and only then may the vehicle close its high-voltage contactors. Before that the connector has been latched and the vehicle has given charge permission. If the vehicle measures this line and finds it high at the moment d2 should be closed, the go-ahead for the contactors never arrives and the session ends just before power transfer; a high level outside a session points to a short to a supply. An open wire on pin 10 or a station whose d2 fails can look the same. No manufacturer documents P2E8E publicly. The low counterpart is P2E8F; faults on signal 1 are P2E8C/P2E8D.
P2E8E at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2E8E
- DC session stops after insulation test without current flowing
- Station shows a vehicle-side error
- AC charging still possible
Common causes of P2E8E
- Most likelyOpen wire or damaged pin 10 in the DC inlet
- PossibleFast charger switch d2 not closing
- PossibleSequence signal 2 line shorted to a supply voltage
- Less likelyFaulty input stage in the evaluating control unit
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Battery charger b charge seq signal 2Charge portWiring harness
What each part of P2E8E means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8E | The exact fault in that area. |
What to do next
- Note P2E8E 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 P2E8E
What does P2E8E mean?
P2E8E means "Battery Charger B Charge Sequence Signal 2 Circuit High". P2E8E concerns the second CHAdeMO sequence line, which works differently from the first: the station closes switch d2 to tie the line to ground, completing the circuit that sequence signal 1 feeds, and only then may the vehicle close its high-voltage contactors. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E8E?
P2E8E does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P2E8E fail an emissions test?
P2E8E 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 P2E8E to fix?
Difficulty: medium. A typical repair takes 0.3 to 4 hours of work. This is a job for a workshop.
Will P2E8E clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.