P0D4ABattery Charger 14 Volt Output Current Sensor Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- P0D4A sets when the current sensor in the charger's 14 V output reports 54 A or more. GM's battery charger control module in the 2011-2014 Volt and the ELR applies that threshold for 400 of 500 ms with the low-voltage section awake and treats the result as a Type A fault with MIL. Either the sensor signal is stuck high or the output is genuinely overloaded or shorted; GM's tables do not separate the two. P0D49 is the low counterpart, and both block GM's 14 V output power check P0D5B. Because the stage sits inside the on-board charger, the car's main DC/DC converter is not the place to look. Owners mainly notice that the car refuses to charge or stops charging soon after plugging in.
- What you may notice
- Vehicle will not charge
- MIL on (GM)
- Likely causes
- LikelyCurrent sense signal stuck high inside the charger
- PossibleOverload or short on the charger's low-voltage output
- PossibleFailed on-board charger
- 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.