Powertrain, generic · Hybrid propulsion

P0D50 Battery Charger Hybrid/EV Battery Output Voltage Sensor Circuit Intermittent/Erratic

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0D50 stands for an unsteady output voltage signal from the on-board charger: the value jumps or drops out briefly instead of following the slowly changing battery voltage. No manufacturer documents P0D50 publicly. GM and Mitsubishi only publish fixed limits for this sensor (P0D4E, P0D4F) and, at GM, a comparison with the battery voltage (P0D4D), so a dedicated check for signal spikes would be an additional layer. CARB lets such checks count as part of the circuit and rationality monitoring it requires for the plug-in charger. Loose internal contacts, failing solder joints or interference within the charger are the likely triggers. Charging may stop and restart repeatedly; driving is unaffected.

Likely causes

Loose contact or cracked solder joint in the charger's measuring path
Electrical interference from the charger's power stage
Ageing voltage sensing electronics in the charger

Symptoms

  • Charging repeatedly interrupted
  • Charge time noticeably longer than usual
  • Sporadic 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 voltage sensoron board charger

Related codes

P0D4CP0D4DP0D4EP0D4FP0D55

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