P2E8F code meaning
Battery Charger B Charge Sequence Signal 2 Circuit Low
What P2E8F means
P2E8F reports the second CHAdeMO sequence line pulled low at a time it should be released. Because the station uses d2 to connect this line to ground as the very last step before the vehicle closes its contactors, and opens d2 first when the session ends, a line already at ground early, or still at ground once d2 is open, contradicts the sequence. A ground short in the inlet or harness, a station switch d2 that sticks closed, or a faulty input stage can be the cause. The vehicle then cannot be sure its contactor release is controlled by the station and normally refuses or aborts DC charging. No manufacturer documents P2E8F publicly; Siemens' CHAdeMO library for charging stations shows the station side, with relays d1 and d2 rated for 2 A. The high counterpart is P2E8E.
P2E8F 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 P2E8F
- DC fast charging refused right after plugging in
- Session ends with an error instead of a normal stop
- AC charging unaffected
Common causes of P2E8F
- Most likelySequence signal 2 line shorted to ground
- PossibleFast charger switch d2 stuck closed
- PossibleWater or dirt in the DC inlet
- 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 P2E8F means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8F | The exact fault in that area. |
What to do next
- Note P2E8F 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 P2E8F
What does P2E8F mean?
P2E8F means "Battery Charger B Charge Sequence Signal 2 Circuit Low". P2E8F reports the second CHAdeMO sequence line pulled low at a time it should be released. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E8F?
P2E8F does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P2E8F fail an emissions test?
P2E8F 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 P2E8F to fix?
Difficulty: medium. A typical repair takes 0.3 to 4 hours of work. This is a job for a workshop.
Will P2E8F clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.