P0D44 code meaning
Battery Charger 14 Volt Output Voltage Sensor Circuit Low
Powertrain system Generic code P0Dxx codes Check engine light
What P0D44 means
P0D44 is logged once the voltage sensor of the charger's 14 V output delivers an implausibly low raw value. In GM's charger module for the 2011-2014 Volt and the ELR the limit is a sensor signal of 1.87 V or less, held for 400 of 500 ms while the low-voltage section is awake; it is a Type A fault and lights the MIL. The 2016 ELR charger table also lists the code as a precondition for its output power checks, and GM's 14 V output power test P0D5B only runs without it. The output is a low-voltage DC stage built into the charger, not the vehicle's primary DC/DC converter. A grounded signal path or failed electronics inside the charger are typical; internal faults are cured only by reprogramming or replacing the charger.
P0D44 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 repairWhen cleared with a scanner
Symptoms of P0D44
- MIL on (GM)
- Charging may stop or not complete
Common causes of P0D44
- Most likelyVoltage sense signal shorted to ground inside the charger
- PossibleFailed low-voltage stage of the on-board charger
- Less likely14 V output collapsed by an external short or overload
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Battery charger 14v output voltage sensorOn board charger
What each part of P0D44 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 44 | The exact fault in that area. |
What to do next
- Note P0D44 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 P0D44
What does P0D44 mean?
P0D44 means "Battery Charger 14 Volt Output Voltage Sensor Circuit Low". P0D44 is logged once the voltage sensor of the charger's 14 V output delivers an implausibly low raw value. It is a generic code, so it means the same on every make.
Is it safe to drive with P0D44?
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 P0D44 fail an emissions test?
P0D44 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 P0D44 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P0D44 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.