Powertrain, generic

P0E88 Battery Charger B Input Current Too Low

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0E88 is set when charger B takes in less current than it should for the charging power it is asked to deliver, with voltage present. Its counterpart without a letter is P0D29. No manufacturer documents P0E88 in public sources. The neighbour P0E89 for too much current is documented by Ford, Toyota, Isuzu and Mercedes, so the input current of a B charger is clearly monitored. A low value with normal voltage suggests that the charger does not ramp up, that a resistive inlet or cable limits the flow, or that the charging station offers less current than expected. A measurement error is possible too, but those have their own sensor codes (P0E8A). CARB requires charger faults that limit the charging rate to be detected. Usually charging is just slow; driving is not affected.

Likely causes

Charger B power stage does not reach the requested power
High resistance at inlet contacts or in the charging cable
Charging station or cable signals a lower current limit than expected

Symptoms

  • AC charging takes much longer than usual
  • Charging stops or a charging fault is shown

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–2,000
Time0.3–4 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

P0E89P0D29P0E8AP0E86

References: law.cornell.edu, fordservicecontent.com, static.nhtsa.gov.