P1EFD
Battery Charger Power Efficiency
P1EFD is an OBD-II diagnostic trouble code meaning: Battery Charger Power Efficiency. Common causes: charger fault, problems with high voltage battery. Estimated repair cost: $56–278.
Symptoms
- Extended battery charging time
- Reduced electric vehicle range
- Warning indication on the instrument panel
- Increased heating of the charging unit
- System failure to start charging process
Causes
- Charger fault
- Problems with high voltage battery
- Charging system overheating
- Damage to the charging cable
- Control unit software errors
How to Fix
- Check the charger and cables for damage
- Carry out diagnostics of the high-voltage battery
- Clean the cooling channels of the charging system
- Update the charging control unit software
- Check connections and connectors of the high-voltage system
Related codes
FAQ
What does the P1EFD code mean?
P1EFD is an OBD-II diagnostic trouble code that indicates: Battery Charger Power Efficiency
What causes a P1EFD error code?
The most common causes of P1EFD include: Charger fault; Problems with high voltage battery; Charging system overheating; Damage to the charging cable.
How do I fix a P1EFD diagnostic trouble code?
To fix P1EFD: Check the charger and cables for damage. Carry out diagnostics of the high-voltage battery. Clean the cooling channels of the charging system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1EFD?
Do not drive — repair immediately
How much does it cost to fix P1EFD?
The estimated repair cost for P1EFD is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat