P0E89 code meaning
Battery Charger B Input Current Too High
Powertrain system Generic code P0Exx codes Check engine light
What P0E89 means
P0E89 reports more input current into charger B than permitted, and it is the best documented code of this series. Toyota lists P0E8919 on 2021 to 2023 RAV4 Prime XSE models with the 6.6 kW charger, together with P0D2A19 and PFC boost faults; the MIL is on, plug-in charging fails and the charger assembly is replaced (T-SB-0067-22). Ford's plug-in summary sets it when the charger, in ready state, receives a charging current request above 100 A. Isuzu logs it as excessive on-board charger input current in the VCU of the 2025-2026 NRR-EV with an amber EV warning and cures it with a VCU recalibration. Mercedes uses P0E8929 in the DC charging unit of several plug-in hybrids and the eSprinter, where the vehicle may refuse to start once a DC fast charge has ended. Too little current is P0E88.
P0E89 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0E89
- MIL or EV system warning lamp on
- Plug-in charging stops or does not work at all
- Vehicle does not start after DC fast charging (Mercedes)
Common causes of P0E89
- Most likelyDefective power factor correction or power stage in the charger (Toyota RAV4 Prime)
- Most likelyCalibration or software of the vehicle or charging control unit (Isuzu VCU, Mercedes DC charging unit, Ford request logic)
- PossibleCurrent ripple or overcurrent from the charging station (Mercedes)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Battery charger bAc input circuitOn board charger
What each part of P0E89 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 89 | The exact fault in that area. |
What to do next
- Note P0E89 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 P0E89
What does P0E89 mean?
P0E89 means "Battery Charger B Input Current Too High". P0E89 reports more input current into charger B than permitted, and it is the best documented code of this series. It is a generic code, so it means the same on every make.
Is it safe to drive with P0E89?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0E89 fail an emissions test?
P0E89 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 P0E89 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P0E89 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.