Powertrain, generic

P0E89 Battery Charger B Input Current Too High

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

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.

Likely causes

Defective power factor correction or power stage in the charger (Toyota RAV4 Prime)
Calibration or software of the vehicle or charging control unit (Isuzu VCU, Mercedes DC charging unit, Ford request logic)
Current ripple or overcurrent from the charging station (Mercedes)

Symptoms

  • 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)

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€0–2,500
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

battery charger bac input circuiton board charger

Related codes

P0E88P0D2AP0E8AP0E87

References: static.nhtsa.gov, static.nhtsa.gov, fordservicecontent.com, static.nhtsa.gov.