P2E3ABattery Charger B Output Voltage Performance
- Generic OBD-II code · Powertrain
- How the car detects it
- P2E3A says the high-voltage output of charger B does not follow its target, typically in the constant-voltage phase near the end of a charge, without being clearly too low. No manufacturer documents P2E3A publicly. The A-side code P0D20 shows two readings of the same check. GM's 2011 Volt sets it in constant-voltage mode once the output deviates by 15 % or more, 30 times in 50 samples at 100 ms, One Trip Type A. Ford's 2019 plug-in hybrid summary files P0D20 when the charger, connected and fed with AC, delivers less output power than expected. Holley's 30-8405 unit specifies an output voltage accuracy of 1 %. CARB covers faults that keep the battery from filling completely. Clearly low output is P2E3B, current deviation P2E3C. Charging may end early or below full.
- What you may notice
- Battery does not reach full charge
- Charging stops early or takes longer
- Charging system warning message
- Likely causes
- LikelyDegraded power stage or regulation inside charger B
- PossibleDrifting output voltage measurement
- PossibleCharger or battery module software needing an update
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €0 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.