P1EF5
Battery Charger Input Voltage Conditioner Temperature Too High
P1EF5 is an OBD-II diagnostic trouble code meaning: Battery Charger Input Voltage Conditioner Temperature Too High. Common causes: charger cooling system malfunction, clogged radiator or ventilation ducts. Estimated repair cost: $56–222.
Symptoms
- Reduced battery charging efficiency
- Dashboard warning
- Engine power limitation
- Overheating in the charger area
- The car may go into emergency mode
Causes
- Charger cooling system malfunction
- Clogged radiator or ventilation ducts
- Problems with coolant circulation
- Temperature sensor malfunction
- Excessive charger load
How to Fix
- Check the level and condition of the coolant
- Clean the radiator and ventilation ducts
- Check the operation of the cooling fans
- Diagnostics of temperature sensors
- Check wiring harness and connections
- Repair only from an authorized dealer
Related codes
FAQ
What does the P1EF5 code mean?
P1EF5 is an OBD-II diagnostic trouble code that indicates: Battery Charger Input Voltage Conditioner Temperature Too High
What causes a P1EF5 error code?
The most common causes of P1EF5 include: Charger cooling system malfunction; Clogged radiator or ventilation ducts; Problems with coolant circulation; Temperature sensor malfunction.
How do I fix a P1EF5 diagnostic trouble code?
To fix P1EF5: Check the level and condition of the coolant. Clean the radiator and ventilation ducts. Check the operation of the cooling fans. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1EF5?
Do not drive — repair immediately
How much does it cost to fix P1EF5?
The estimated repair cost for P1EF5 is $56–222. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat