Powertrain, generic

P0E5F Battery Charger Coupler Temperature A Too High

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0E5F is not a sensor fault: the coupler temperature sensor A works, but the charging inlet really got too hot. Three makers document it. Ford links it on the 2021–2023 Mustang Mach-E (stored in the SOBDM) to a red flashing charge indicator and no charging from a 48 A level 2 station, while 32 A or less may still work; SSM 51866 calls for a new charge port. GM's PIT5904 for the 2022 Hummer EV and BrightDrop EV600 says the pin temperatures are watched all the time and that, once the code has tripped, charging resumes only after the plug is pulled and reinserted, even when the pins have cooled; worn station plugs are a suspect. Mercedes stores P0E5F97 in the AC charger of several 2024 plug-in hybrids in strong sun and calls it no fault, with power cut back until the temperature drops.

Likely causes

Excessive contact resistance in the vehicle charge port (Ford replaces the port)
Worn or damaged plug of the charging cable or station
High ambient temperature or direct sun while charging (Mercedes)
Charging control software (GM update announced)

Symptoms

  • Charging stops or runs at reduced power
  • Charge indicator red or flashing red, warning in app or cluster
  • Charging restarts only after unplugging and replugging

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€0–1,500
Time0.2–4 h

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

Parts involved

battery charger coupler acharge porton board charger

Related codes

P0D99P0D9AP0EEEP2E4EP2E53

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.