P0B4E
Hybrid/EV Battery Voltage Sense D Circuit Intermittent/Erratic
P0B4E is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense D Circuit Intermittent/Erratic. Common causes: damage to the voltage measurement circuit wiring harness, oxidation or poor contact in connectors. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Incorrect display of battery charge level
- The vehicle goes into emergency mode
- Problems with charging a high-voltage battery
Causes
- Damage to the voltage measurement circuit wiring harness
- Oxidation or poor contact in connectors
- Battery voltage sensor fault
- Problems with the hybrid system control unit
- Short circuit or open circuit
How to Fix
- Check the integrity of the measuring circuit wiring harness
- Clean and check all contacts in connectors
- Test battery voltage sensor
- Check the operation of the hybrid system control unit
- Repair only from an authorized dealer
Related codes
Error P0B4E by Vehicle Brand
FAQ
What does the P0B4E code mean?
P0B4E is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense D Circuit Intermittent/Erratic
What causes a P0B4E error code?
The most common causes of P0B4E include: Damage to the voltage measurement circuit wiring harness; Oxidation or poor contact in connectors; Battery voltage sensor fault; Problems with the hybrid system control unit.
How do I fix a P0B4E diagnostic trouble code?
To fix P0B4E: Check the integrity of the measuring circuit wiring harness. Clean and check all contacts in connectors. Test battery voltage sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B4E?
Limited driving only, diagnose soon
How much does it cost to fix P0B4E?
The estimated repair cost for P0B4E is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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