P0E8A code meaning
Battery Charger B Input Current Sensor Circuit
What P0E8A means
P0E8A concerns the measurement, not the current itself: the sensor that tells charger B how much current enters at its input delivers no usable signal. It is the general circuit code; range, low and high faults of the same sensor sit at P2D85, P2D83 and P2D84, and the sensor of charger A uses P0D38. No manufacturer documents P0E8A publicly. That the B input current is evaluated is clear from P0E89, which Toyota sets on the RAV4 Prime as a circuit current above threshold and Ford tests against a 100 A limit. CARB requires inputs such as this to be checked for open circuits and out-of-range signals. In most chargers the sensor sits inside the unit, so a confirmed fault usually means repairing or replacing the charger. Without the reading, charging is refused or stopped.
P0E8A at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0E8A
- AC charging does not start or is aborted
- Charging fault indication; driving remains possible
Common causes of P0E8A
- Most likelyCurrent sensor or its evaluation inside charger B defective
- PossibleOpen or shorted sensor wiring where the sensor is external
- Less likelyCharger software misjudges the sensor signal
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Battery charger b input current sensorWiring harnessOn board charger
What each part of P0E8A means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 8A | The exact fault in that area. |
What to do next
- Note P0E8A 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 P0E8A
What does P0E8A mean?
P0E8A means "Battery Charger B Input Current Sensor Circuit". P0E8A concerns the measurement, not the current itself: the sensor that tells charger B how much current enters at its input delivers no usable signal. It is a generic code, so it means the same on every make.
Is it safe to drive with P0E8A?
P0E8A does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P0E8A fail an emissions test?
P0E8A 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 P0E8A to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P0E8A clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.