P1B39
Battery Energy Control Module Hybrid Battery Voltage Balance Processor 6 Performance
P1B39 is an OBD-II diagnostic trouble code meaning: Battery Energy Control Module Hybrid Battery Voltage Balance Processor 6 Performance. Common causes: voltage balancing processor malfunction, problems with wiring to the 6th battery module. Estimated repair cost: $167–556.
Symptoms
- Hybrid system power reduction
- Increased fuel consumption
- Warning messages on the instrument panel
- Unstable operation of the hybrid system
- Reduced efficiency of regenerative braking
Causes
- Voltage balancing processor malfunction
- Problems with wiring to the 6th battery module
- Poor quality connections in the high voltage circuit
- Control module software error
- Physical damage to battery cells
How to Fix
- Diagnose the condition of the hybrid battery
- Check the integrity of the wiring to the 6th module
- Update control module software
- Replace the faulty battery module if necessary
- Repair only from an authorized dealer
Related codes
FAQ
What does the P1B39 code mean?
P1B39 is an OBD-II diagnostic trouble code that indicates: Battery Energy Control Module Hybrid Battery Voltage Balance Processor 6 Performance
What causes a P1B39 error code?
The most common causes of P1B39 include: Voltage balancing processor malfunction; Problems with wiring to the 6th battery module; Poor quality connections in the high voltage circuit; Control module software error.
How do I fix a P1B39 diagnostic trouble code?
To fix P1B39: Diagnose the condition of the hybrid battery. Check the integrity of the wiring to the 6th module. Update control module software. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1B39?
Limited driving only, diagnose soon
How much does it cost to fix P1B39?
The estimated repair cost for P1B39 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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