P2E3DBattery Charger B Output Shorted
- Generic OBD-II code · Powertrain
- How the car detects it
- P2E3D points to a short on the high-voltage output side of charger B. No manufacturer documents P2E3D publicly. GM's test for the A-side code P0D23 shows how such a short is found: while the charger contactor is only precharging and the multi-purpose contactor is open, hardly any current should flow, so more than 0.35 A on the charger bus in 4 of 5 samples at 100 ms sets the code as One Trip Type A, both in the 2011 Volt and in the 2016 Cadillac ELR tables. The test is suspended while output current sensor faults are active. Supplier chargers such as Holley's 30-8405 build in output short-circuit protection that shuts the stage down. Causes are an internal short in charger B, a damaged HV cable or a contactor path that leaks. Charging is blocked; current deviations alone are P2E3C.
- What you may notice
- Charging blocked as soon as the cable is plugged in
- High-voltage or charging system warning
- Likely causes
- LikelyInternal short in the charger B output stage
- PossibleDamaged high-voltage cable between charger B and battery
- RareLeaking or stuck contactor path in the charging circuit
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.