P0D28
Battery Charger Input Voltage Too High
The battery charger reports input input voltage too high condition. EVSE/AC mains supply may be out of specification.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Common causes
Ordered by how often each turns out to be the cause.
- Mains voltage above specCommon
- Regulator drifted highPossible
Parts involved
- Battery Charger
- AC Input Circuit
P0D28 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.