P0D4E code meaning
Battery Charger Hybrid/EV Battery Output Voltage Sensor Circuit Low
Powertrain system Generic code P0Dxx codes Check engine light
What P0D4E means
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.
P0D4E at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.5 to 4 hours
- Clears after repairAfter a drive cycle
Symptoms of P0D4E
- Charging stops or does not start
- MIL on (GM)
- Charging fault message
Common causes of P0D4E
- Most likelyVoltage sensor signal shorted to ground inside the charger
- Most likelyOn-board charger (Mitsubishi charger/DC-DC unit) failed
- Less likelyInternal reference supply of the measuring circuit missing
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Battery charger hv output voltage sensorOn board charger
What each part of P0D4E means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 4E | The exact fault in that area. |
What to do next
- Note P0D4E and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0D4E
What does P0D4E mean?
P0D4E means "Battery Charger Hybrid/EV Battery Output Voltage Sensor Circuit Low". P0D4E reports a signal below the valid range for the sensor measuring the charger's DC output toward the traction battery. It is a generic code, so it means the same on every make.
Is it safe to drive with P0D4E?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0D4E fail an emissions test?
P0D4E is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P0D4E to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P0D4E clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.