P0B65
Hybrid/EV Battery Voltage Sense I Circuit Low
P0B65 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense I Circuit Low. Common causes: open or short circuit in the voltage sensor circuit, battery voltage sensor fault. Estimated repair cost: $56–278.
Symptoms
- The Check Engine Light or Hybrid System Warning comes on
- Reduced performance of the hybrid system
- The car goes into emergency mode
- Unusual battery level readings
- Charging problems (for plug-in hybrids/electric vehicles)
Causes
- Open or short circuit in the voltage sensor circuit
- Battery voltage sensor fault
- Poor connection or corrosion in sensor circuit connectors
- Problems with high voltage battery
- Malfunction of the hybrid control module (HCU)
How to Fix
- Check the continuity of the voltage sensor circuit
- Check connections and connectors for corrosion or damage
- Check the functionality of the voltage sensor
- Check the condition of the high-voltage battery
- If necessary, replace faulty components
Related codes
Error P0B65 by Vehicle Brand
FAQ
What does the P0B65 code mean?
P0B65 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense I Circuit Low
What causes a P0B65 error code?
The most common causes of P0B65 include: Open or short circuit in the voltage sensor circuit; Battery voltage sensor fault; Poor connection or corrosion in sensor circuit connectors; Problems with high voltage battery.
How do I fix a P0B65 diagnostic trouble code?
To fix P0B65: Check the continuity of the voltage sensor circuit. Check connections and connectors for corrosion or damage. Check the functionality of the voltage sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B65?
Limited driving only, diagnose soon
How much does it cost to fix P0B65?
The estimated repair cost for P0B65 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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