P0B91
Hybrid/EV Battery Voltage Sense R Circuit Range/Performance
P0B91 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense R Circuit Range/Performance. Common causes: battery voltage sensor fault, damaged or corroded wiring. Estimated repair cost: $17–111.
Symptoms
- Check Engine light comes on
- Reduced power or performance
- System transition to emergency mode
- Unusual behavior of the hybrid system
- Reduced electric range
Causes
- Battery voltage sensor fault
- Damaged or corroded wiring
- Poor contact in connectors
- Problems with the battery management module
- Malfunction of the battery itself
How to Fix
- Check the condition of the wiring and connectors
- Test voltage sensors
- Check battery parameters
- Scan Battery Management Module for Additional Codes
- Replace faulty components
Related codes
Error P0B91 by Vehicle Brand
FAQ
What does the P0B91 code mean?
P0B91 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense R Circuit Range/Performance
What causes a P0B91 error code?
The most common causes of P0B91 include: Battery voltage sensor fault; Damaged or corroded wiring; Poor contact in connectors; Problems with the battery management module.
How do I fix a P0B91 diagnostic trouble code?
To fix P0B91: Check the condition of the wiring and connectors. Test voltage sensors. Check battery parameters. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B91?
Limited driving only, diagnose soon
How much does it cost to fix P0B91?
The estimated repair cost for P0B91 is $17–111. Actual cost depends on your vehicle, location, and labor rates.
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