P0B25
Hybrid/EV Battery A Voltage Low
P0B25 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery A Voltage Low. Common causes: degradation of high-voltage battery cells, problems with the cell balancing system. Estimated repair cost: $167–889.
Symptoms
- Reduced vehicle power
- Reducing electric range
- Check Engine Light Illuminated
- Switching to emergency mode
- Problems with charging a high-voltage battery
Causes
- Degradation of high-voltage battery cells
- Problems with the cell balancing system
- Malfunction of voltage sensors
- Damage to battery wiring harness
- Problems with the Battery Management Module (BMS)
How to Fix
- Diagnosis of battery cell condition
- Checking the cell balancing system
- Voltage Sensor Testing
- Checking the integrity of the wiring harness
- Updating or replacing the Battery Management Module (BMS)
- Replacing faulty battery cells
Related codes
Error P0B25 by Vehicle Brand
FAQ
What does the P0B25 code mean?
P0B25 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery A Voltage Low
What causes a P0B25 error code?
The most common causes of P0B25 include: Degradation of high-voltage battery cells; Problems with the cell balancing system; Malfunction of voltage sensors; Damage to battery wiring harness.
How do I fix a P0B25 diagnostic trouble code?
To fix P0B25: Diagnosis of battery cell condition. Checking the cell balancing system. Voltage Sensor Testing. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B25?
Limited driving only, diagnose soon
How much does it cost to fix P0B25?
The estimated repair cost for P0B25 is $167–889. Actual cost depends on your vehicle, location, and labor rates.
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