Body (B)
B10A2: Battery voltage low
The body module has detected that the system voltage is lower than expected. This can affect the operation of various electrical components in the vehicle.
Checked by a licensed car technician · last reviewed 29 September 2026
Symptoms
- Dim or flickering lights
- Slow or non-responsive electrical accessories
- Warning lights on the dashboard
Common causes
- Weak battery
- Faulty charging system
- High resistance in ground connections
How to check it yourself
- Check battery voltage and condition
- Inspect alternator and charging system
- Examine main power and ground connections for corrosion or looseness
Can I keep driving?
The car can be driven, but electrical systems may not function properly. Address the issue soon to avoid being stranded.
General guidance, not a professional inspection. Confirm faults with measurements before buying parts, and use a qualified mechanic for brakes, steering, fuel leaks, airbags, and other safety-critical work. Terms and disclaimer