P1EFE
Battery Charger Reverse Polarity Protection Circuit Performance
P1EFE is an OBD-II diagnostic trouble code meaning: Battery Charger Reverse Polarity Protection Circuit Performance. Common causes: damage to the reverse polarity protection circuit, faulty relays or fuses in the protective circuit. Estimated repair cost: $17–278.
Symptoms
- Inability to charge high voltage battery
- The hybrid system malfunction indicator comes on
- Reduced vehicle performance
- Occurrence of other related errors in the high voltage system
Causes
- Damage to the reverse polarity protection circuit
- Faulty relays or fuses in the protective circuit
- Problems with the charging control module
- Short circuit in wiring harness
- Mechanical damage to the charging port
How to Fix
- Check the condition of the charging port for damage
- Test the protection circuit with a multimeter
- Check the serviceability of the relays and fuses of the system
- Scan for other related error codes
- If necessary, replace damaged protective circuit components
Related codes
FAQ
What does the P1EFE code mean?
P1EFE is an OBD-II diagnostic trouble code that indicates: Battery Charger Reverse Polarity Protection Circuit Performance
What causes a P1EFE error code?
The most common causes of P1EFE include: Damage to the reverse polarity protection circuit; Faulty relays or fuses in the protective circuit; Problems with the charging control module; Short circuit in wiring harness.
How do I fix a P1EFE diagnostic trouble code?
To fix P1EFE: Check the condition of the charging port for damage. Test the protection circuit with a multimeter. Check the serviceability of the relays and fuses of the system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1EFE?
Limited driving only, diagnose soon
How much does it cost to fix P1EFE?
The estimated repair cost for P1EFE is $17–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat