Powertrain, generic · Hybrid propulsion

P0D55 Battery Charger Hybrid/EV Battery Output Current Sensor Circuit Intermittent/Erratic

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0D55 describes an output current signal from the charger that flickers, jumps or briefly drops out rather than tracking the regulated charging current. No manufacturer documents P0D55 publicly. GM and Mitsubishi publish only fixed limits (P0D53 and P0D54) and, at Mitsubishi, a zero-point test (P0D52) for this sensor; a sudden step that returns to normal would not necessarily trip those. CARB's charger requirement for plug-in hybrids is the regulatory basis for monitoring the signal at all. Typical triggers are intermittent internal contacts, solder fatigue from heat cycles during charging, or electrical noise from the charger's switching stage. The likely result is charging that stops and restarts or finishes much later than expected.

Likely causes

Intermittent contact in the current measuring path of the charger
Solder joints fatigued by charging heat cycles
Switching noise coupling into the sensor signal

Symptoms

  • Charging pauses and resumes repeatedly
  • Charging takes much longer than usual
  • Occasional charging system warning

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–2,500
Time0.5–4 h

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

Parts involved

battery charger hv output current sensoron board charger

Related codes

P0D51P0D52P0D53P0D54P0D50

References: law.cornell.edu, gsi.ext.gm.com, mitsubishitechinfo.com.