P1B49
Hybrid/Electric Vehicle Battery 34 Circuit Low Voltage
P1B49 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 34 Circuit Low Voltage. Common causes: battery cell #34 malfunction, problems with the balancing device. Estimated repair cost: $167–556.
Symptoms
- Hybrid system power reduction
- Increased fuel consumption
- Check Engine Light Illuminates
- Reduced efficiency of regenerative braking
- Error messages on the hybrid system display
Causes
- Battery cell #34 malfunction
- Problems with the balancing device
- Damage to wiring or connectors
- Corrosion of contacts in the battery circuit
- Battery management module malfunction
How to Fix
- Check the voltage on battery cell No. 34
- Inspect wiring and connectors for damage
- Check the operation of the balancing device
- Test the battery management module
- If necessary, replace the faulty battery cell
Related codes
FAQ
What does the P1B49 code mean?
P1B49 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 34 Circuit Low Voltage
What causes a P1B49 error code?
The most common causes of P1B49 include: Battery cell #34 malfunction; Problems with the balancing device; Damage to wiring or connectors; Corrosion of contacts in the battery circuit.
How do I fix a P1B49 diagnostic trouble code?
To fix P1B49: Check the voltage on battery cell No. 34. Inspect wiring and connectors for damage. Check the operation of the balancing device. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1B49?
Limited driving only, diagnose soon
How much does it cost to fix P1B49?
The estimated repair cost for P1B49 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat