Powertrain, generic · Hybrid propulsion

P0D4E Battery Charger Hybrid/EV Battery Output Voltage Sensor Circuit Low

Check engine lightOn
EmissionsNot relevant
Drive cycleRequired
Limp modeNo

P0D4E reports a signal below the valid range for the sensor measuring the charger's DC output toward the traction battery. In GM's charger module for the 2011-2014 Volt and ELR the raw value must stay at or below 2.62 V for 400 of 500 ms; the fault is Type A and lights the MIL at once. The 2016-2019 Volt reads the sensor as a duty cycle and treats 8 % or less, or a signal stuck at 100 %, as low, Type B. Mitsubishi's 2022 Outlander PHEV calls it a short to ground: under 0.943 V, equal to about -7 V, for 0.5 s; charging is stopped and the charger/DC-DC unit is replaced. GM's Bolt EI PIE0828 also lists the code. Its counterpart is P0D4F; plausibility errors fall under P0D4D.

Likely causes

Voltage sensor signal shorted to ground inside the charger
On-board charger (Mitsubishi charger/DC-DC unit) failed
Internal reference supply of the measuring circuit missing

Symptoms

  • Charging stops or does not start
  • MIL on (GM)
  • Charging fault message

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€150–2,500
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

P0D4FP0D4CP0D4DP0D50P0D53P0D5C

References: gsi.ext.gm.com, gsi.ext.gm.com, mitsubishitechinfo.com, static.nhtsa.gov.