P0B41
Hybrid/EV Battery Voltage Sense B Circuit Range/Performance
P0B41 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense B Circuit Range/Performance. Common causes: voltage sensor b fault, damage or corrosion of wiring in the measurement circuit. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- The car goes into emergency mode
- Reducing electric range
- Incorrect battery level readings
Causes
- Voltage sensor B fault
- Damage or corrosion of wiring in the measurement circuit
- Poor contact in the measuring circuit connectors
- Problems with the Battery Management Module (BMS)
- Malfunction of the highest voltage battery
How to Fix
- Check continuity of voltage measurement circuit B
- Inspect and clean sensor contacts and connectors
- Test voltage sensors
- Check Battery Management Module (BMS) operation
- Diagnose the condition of a high-voltage battery
Related codes
Error P0B41 by Vehicle Brand
FAQ
What does the P0B41 code mean?
P0B41 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense B Circuit Range/Performance
What causes a P0B41 error code?
The most common causes of P0B41 include: Voltage sensor B fault; Damage or corrosion of wiring in the measurement circuit; Poor contact in the measuring circuit connectors; Problems with the Battery Management Module (BMS).
How do I fix a P0B41 diagnostic trouble code?
To fix P0B41: Check continuity of voltage measurement circuit B. Inspect and clean sensor contacts and connectors. Test voltage sensors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B41?
Do not drive — repair immediately
How much does it cost to fix P0B41?
The estimated repair cost for P0B41 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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