P0BB6
Hybrid/EV Battery Voltage Sense Y Circuit High
P0BB6 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense Y Circuit High. Common causes: voltage sensor fault y, open or short circuit in the measurement circuit. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Reducing electric range
- Incorrect display of battery charge level
- The car goes into emergency mode
Causes
- Voltage sensor fault Y
- Open or short circuit in the measurement circuit
- Wiring Harness Problems
- Battery management module (BMS) malfunction
- Contact corrosion in a high voltage system
How to Fix
- Check the integrity of the voltage measurement circuit Y
- Test battery voltage sensors
- Inspect and, if necessary, replace the wiring harness
- Check the operation of the battery management module
- Perform high voltage system diagnostics
Related codes
Error P0BB6 by Vehicle Brand
FAQ
What does the P0BB6 code mean?
P0BB6 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense Y Circuit High
What causes a P0BB6 error code?
The most common causes of P0BB6 include: Voltage sensor fault Y; Open or short circuit in the measurement circuit; Wiring Harness Problems; Battery management module (BMS) malfunction.
How do I fix a P0BB6 diagnostic trouble code?
To fix P0BB6: Check the integrity of the voltage measurement circuit Y. Test battery voltage sensors. Inspect and, if necessary, replace the wiring harness. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0BB6?
Do not drive — repair immediately
How much does it cost to fix P0BB6?
The estimated repair cost for P0BB6 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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