P0B90
Hybrid/EV Battery Voltage Sense R Circuit
P0B90 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense R Circuit. Common causes: open or short circuit in the sensor circuit, faulty battery voltage sensor. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Reduced vehicle power
- The car goes into emergency mode
- Unstable operation of the hybrid system
- Problems with charging a high-voltage battery
Causes
- Open or short circuit in the sensor circuit
- Faulty battery voltage sensor
- Poor contact in circuit connectors
- Problems with the Battery Management Module (BMS)
- Contact corrosion in a high voltage system
How to Fix
- Check the integrity of the sensor circuit wiring
- Check the connections and contacts of the sensor
- Test battery voltage sensor
- Check the functionality of the battery management module
- If necessary, replace faulty components
Related codes
Error P0B90 by Vehicle Brand
FAQ
What does the P0B90 code mean?
P0B90 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense R Circuit
What causes a P0B90 error code?
The most common causes of P0B90 include: Open or short circuit in the sensor circuit; Faulty battery voltage sensor; Poor contact in circuit connectors; Problems with the Battery Management Module (BMS).
How do I fix a P0B90 diagnostic trouble code?
To fix P0B90: Check the integrity of the sensor circuit wiring. Check the connections and contacts of the sensor. Test battery voltage sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B90?
Yes, but get it checked soon
How much does it cost to fix P0B90?
The estimated repair cost for P0B90 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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