P0D43Battery Charger 14 Volt Output Voltage Sensor Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- 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.
- What you may notice
- MIL on (GM)
- Charging interrupted or not completed
- Likely causes
- LikelyLow-voltage sense circuit inside the charger reads wrong
- PossiblePoor ground or 12 V feed at the charger skews the comparison
- RareCharger module software
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €50 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.