B2A0F
Backup Battery Degradation
B2A0F is an OBD-II diagnostic trouble code meaning: Backup Battery Degradation. Common causes: natural aging of the backup battery, battery charging problems. Estimated repair cost: $56–167.
Symptoms
- The passive safety system fault indicator is on
- Error message on display
- Reduced efficiency of the passive safety system
Causes
- Natural aging of the backup battery
- Battery charging problems
- Short circuit in the backup battery circuit
- Faulty wiring harness or contacts
How to Fix
- Check the status of the backup battery
- Check battery charging circuit
- Replace backup battery if necessary
- Check wiring harness and contacts
- Reset the error and check the system
Related codes
FAQ
What does the B2A0F code mean?
B2A0F is an OBD-II diagnostic trouble code that indicates: Backup Battery Degradation
What causes a B2A0F error code?
The most common causes of B2A0F include: Natural aging of the backup battery; Battery charging problems; Short circuit in the backup battery circuit; Faulty wiring harness or contacts.
How do I fix a B2A0F diagnostic trouble code?
To fix B2A0F: Check the status of the backup battery. Check battery charging circuit. Replace backup battery if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2A0F?
Do not drive — repair immediately
How much does it cost to fix B2A0F?
The estimated repair cost for B2A0F is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat