P1EF4
Battery Charger High Voltage Converter 2 Temperature Too High
P1EF4 is an OBD-II diagnostic trouble code meaning: Battery Charger High Voltage Converter 2 Temperature Too High. Common causes: high voltage converter fault, problems with the converter cooling system. Estimated repair cost: $89–500.
Symptoms
- Reduced battery charging efficiency
- Engine power limitation
- Warning messages on the instrument panel
- Possible charging system shutdown
- Increased heat in the charger area
Causes
- High voltage converter fault
- Problems with the converter cooling system
- Temperature sensor malfunction
- Charging system overload
- Electrical wiring problems
How to Fix
- Check the condition of the converter cooling system
- Diagnose the operation of the high voltage converter
- Check the integrity of wiring and contacts
- Check the serviceability of the temperature sensor
- Update control system software
- Repair only from an authorized dealer
Related codes
FAQ
What does the P1EF4 code mean?
P1EF4 is an OBD-II diagnostic trouble code that indicates: Battery Charger High Voltage Converter 2 Temperature Too High
What causes a P1EF4 error code?
The most common causes of P1EF4 include: High voltage converter fault; Problems with the converter cooling system; Temperature sensor malfunction; Charging system overload.
How do I fix a P1EF4 diagnostic trouble code?
To fix P1EF4: Check the condition of the converter cooling system. Diagnose the operation of the high voltage converter. Check the integrity of wiring and contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1EF4?
Limited driving only, diagnose soon
How much does it cost to fix P1EF4?
The estimated repair cost for P1EF4 is $89–500. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat