P0D49Battery Charger 14 Volt Output Current Sensor Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- P0D49 reports that the current sensor in the charger's 14 V output reads too low. GM's battery charger control module in the 2011-2014 Volt and the ELR sets it when the raw current value is 0.293 A or less for 400 of 500 ms while the low-voltage section is awake, as a Type A fault with MIL; the 2016 ELR charger table also lists it as a precondition for its output power checks. GM treats a value at this level as a sensor fault, which points to an open or grounded sense path or failed measuring electronics. The high counterpart is P0D4A. This output is a low-voltage stage inside the charger, not the Volt's separate accessory power module. Charging behaviour can be affected; driving normally is not.
- What you may notice
- MIL on (GM)
- Charging may fail
- Likely causes
- LikelyOpen or grounded current sense path inside the charger
- PossibleFailed low-voltage stage of the on-board charger
- Rare12 V supply or fuse of the charger interrupted
- 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.