P0E87
Battery Charger B Input Voltage Too High
P0E87 is an OBD-II diagnostic trouble code meaning: Battery Charger B Input Voltage Too High. Common causes: faulty voltage regulator, problems with the generator. Estimated repair cost: $17–222.
Symptoms
- Battery charging warning light on dashboard
- Reduced hybrid system performance (if applicable)
- Overheating of charging system components
- Unstable operation of the vehicle's electronic systems
- Possible battery damage
Causes
- Faulty voltage regulator
- Problems with the generator
- Short circuit in the electrical circuit
- Malfunction of the charging system control unit
- Damage to the high-voltage battery (in hybrid/electric cars)
How to Fix
- Check the voltage at the generator output
- Test the voltage regulator
- Inspect electrical connections and wiring harness
- Check the condition of the battery and high-voltage battery (if applicable)
- Replacing faulty charging system components
Related codes
Error P0E87 by Vehicle Brand
FAQ
What does the P0E87 code mean?
P0E87 is an OBD-II diagnostic trouble code that indicates: Battery Charger B Input Voltage Too High
What causes a P0E87 error code?
The most common causes of P0E87 include: Faulty voltage regulator; Problems with the generator; Short circuit in the electrical circuit; Malfunction of the charging system control unit.
How do I fix a P0E87 diagnostic trouble code?
To fix P0E87: Check the voltage at the generator output. Test the voltage regulator. Inspect electrical connections and wiring harness. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0E87?
Do not drive — repair immediately
How much does it cost to fix P0E87?
The estimated repair cost for P0E87 is $17–222. Actual cost depends on your vehicle, location, and labor rates.
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