Network, generic

U057D Invalid Data Received From Off-Board Charger Control Module

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Despite its name, the off-board charger control module sits inside the vehicle: it conducts the dialogue with an external DC fast charger, which under CCS runs as power line communication on the control pilot contact (ISO 15118, DIN 70121) and under CHAdeMO over a CAN link in the connector. Ford calls this unit the off-board charger controller (OBCC) on the Mustang Mach-E and E-Transit; SSM 50923 had new OBCC software fix interrupted DC fast charging at some EVgo stations. U057D is stored when another module in the car receives frames from this controller but rejects them, for instance because of a wrong counter, a failed checksum or implausible values. No manufacturer documents U057D itself. DC fast charging is likely to stop or refuse to start, while AC charging normally still works.

Likely causes

Fault or outdated software in the charging station
Dirty or damaged communication contacts in plug or inlet
Vehicle charging controller software not compatible with the station

Symptoms

  • DC fast charging aborts or does not start
  • Charging works at other stations

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–800
Time0.2–2 h

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

Parts involved

off board charger module

Related codes

U027CU049CP0CF4

References: static.nhtsa.gov, en.wikipedia.org, en.wikipedia.org.