Powertrain, generic · Hybrid propulsion

P0D48 Battery Charger 14 Volt Output Current Sensor Circuit Range/Performance

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0D48 marks a current reading at the charger's 14 V output that lies within its electrical range but makes no sense in context. No manufacturer documents P0D48. GM covers a related check differently: its Volt and ELR charger module multiplies the 14 V output voltage by the current and sets P0D5B when this low-voltage power exceeds a limit derived from the measured AC input power plus 125 W. Out-of-range current faults are P0D49 and P0D4A, the circuit code is P0D47. CARB defines a rationality diagnostic as comparing a sensor with all other available information, which is exactly what this code represents. Suspects are drift in the charger's sense circuit or its software; repair normally means reprogramming or replacing the charger.

Likely causes

Current sense circuit inside the charger has drifted
Charger module software or calibration
Failed low-voltage stage of the charger

Symptoms

  • Charging fault indication
  • 12 V support during charging reduced or switched off

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€50–2,500
Time0.5–4 h

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

Parts involved

battery charger 14v output current sensoron board charger

Related codes

P0D47P0D49P0D4AP0D4BP0D5BP0D43

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