P1B56
Hybrid/Electric Vehicle Battery 38 Circuit High Voltage
P1B56 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 38 Circuit High Voltage. Common causes: high voltage battery fault, problems with the battery management system (bms). Estimated repair cost: $167–889.
Symptoms
- Check Engine light comes on
- Reduced vehicle power
- The car goes into emergency mode
- Unusual sounds from the engine compartment
- High voltage warning on instrument panel
Causes
- High voltage battery fault
- Problems with the Battery Management System (BMS)
- Damage to high voltage cables
- Voltage converter fault
- Short circuit in high voltage circuit
How to Fix
- High voltage system diagnostics
- Checking the condition of the high-voltage battery
- Inspection of high voltage cables and connections
- Testing the Battery Management System
- Repair or replace damaged components
- Work must be carried out by a qualified hybrid technician
Related codes
FAQ
What does the P1B56 code mean?
P1B56 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 38 Circuit High Voltage
What causes a P1B56 error code?
The most common causes of P1B56 include: High voltage battery fault; Problems with the Battery Management System (BMS); Damage to high voltage cables; Voltage converter fault.
How do I fix a P1B56 diagnostic trouble code?
To fix P1B56: High voltage system diagnostics. Checking the condition of the high-voltage battery. Inspection of high voltage cables and connections. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1B56?
Do not drive — repair immediately
How much does it cost to fix P1B56?
The estimated repair cost for P1B56 is $167–889. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat