P0D43 code meaning
Battery Charger 14 Volt Output Voltage Sensor Circuit Range/Performance
Powertrain system Generic code P0Dxx codes Check engine light
What P0D43 means
P0D43 says the voltage reported for the charger's 14 V output does not fit other measurements of the low-voltage system. GM's battery charger control module in the 2011-2014 Volt and the ELR compares the reading with the run/crank signal voltage and with the voltage of a further enable line (HVEMB); a difference of 6 V or more for 4 of 5 s stores a Type A fault with MIL. The test is suspended while the out-of-range codes P0D44/P0D45 or a reference voltage fault are present. In GM's design this output is a low-voltage DC stage inside the charger, separate from the Volt's accessory power module. A failing sense circuit in the charger is most likely, a poor ground or 12 V feed less so; charging can be affected.
P0D43 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 P0D43
- MIL on (GM)
- Charging interrupted or not completed
Common causes of P0D43
- Most likelyLow-voltage sense circuit inside the charger reads wrong
- PossiblePoor ground or 12 V feed at the charger skews the comparison
- Less likelyCharger module software
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 P0D43 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 43 | The exact fault in that area. |
What to do next
- Note P0D43 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 P0D43
What does P0D43 mean?
P0D43 means "Battery Charger 14 Volt Output Voltage Sensor Circuit Range/Performance". P0D43 says the voltage reported for the charger's 14 V output does not fit other measurements of the low-voltage system. It is a generic code, so it means the same on every make.
Is it safe to drive with P0D43?
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 P0D43 fail an emissions test?
P0D43 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 P0D43 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P0D43 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.