P0BB1
Hybrid/EV Battery Voltage Sense X Circuit High
P0BB1 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense X Circuit High. Common causes: battery voltage sensor fault, damaged or corroded wiring. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Activation of emergency operation
- Incorrect battery level display
- Deteriorating fuel economy
Causes
- Battery voltage sensor fault
- Damaged or corroded wiring
- Problems with connectors in the sensor circuit
- Malfunction of the hybrid control module (HCU)
- Problems with high voltage battery
How to Fix
- Check the integrity of the wiring and connectors in the sensor circuit
- Test battery voltage sensor
- Check the parameters of the high-voltage battery
- Scan the HCU for additional errors
- If necessary, replace the voltage sensor or repair the wiring
Related codes
Error P0BB1 by Vehicle Brand
FAQ
What does the P0BB1 code mean?
P0BB1 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense X Circuit High
What causes a P0BB1 error code?
The most common causes of P0BB1 include: Battery voltage sensor fault; Damaged or corroded wiring; Problems with connectors in the sensor circuit; Malfunction of the hybrid control module (HCU).
How do I fix a P0BB1 diagnostic trouble code?
To fix P0BB1: Check the integrity of the wiring and connectors in the sensor circuit. Test battery voltage sensor. Check the parameters of the high-voltage battery. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0BB1?
Limited driving only, diagnose soon
How much does it cost to fix P0BB1?
The estimated repair cost for P0BB1 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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