P0B4C
Hybrid/EV Battery Voltage Sense D Circuit Low
P0B4C is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense D Circuit Low. Common causes: open or short circuit in the sensor circuit, battery voltage sensor fault. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- The car goes into emergency mode
- Incorrect battery level readings
- Problems with charging a high-voltage battery
Causes
- Open or short circuit in the sensor circuit
- Battery voltage sensor fault
- Problems with wiring harness or contacts
- Battery management module malfunction
- Corrosion or poor connections in the circuit
How to Fix
- Check the continuity of the voltage sensor circuit
- Check connections and contacts in the circuit
- Test battery voltage sensor
- Check the operation of the battery management module
- Repair only from an authorized dealer
Related codes
Error P0B4C by Vehicle Brand
FAQ
What does the P0B4C code mean?
P0B4C is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense D Circuit Low
What causes a P0B4C error code?
The most common causes of P0B4C include: Open or short circuit in the sensor circuit; Battery voltage sensor fault; Problems with wiring harness or contacts; Battery management module malfunction.
How do I fix a P0B4C diagnostic trouble code?
To fix P0B4C: Check the continuity of the voltage sensor circuit. Check connections and contacts in the circuit. Test battery voltage sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B4C?
Limited driving only, diagnose soon
How much does it cost to fix P0B4C?
The estimated repair cost for P0B4C is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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