P0B72
Hybrid/EV Battery Voltage Sense L Circuit
P0B72 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense L Circuit. Common causes: open or short circuit in the sensor circuit, voltage sensor fault. Estimated repair cost: $33–167.
Symptoms
- Check Engine Light Is On
- Hybrid system power reduction
- The car goes into emergency mode
- Unstable operation of the hybrid system
- Reducing electric range
Causes
- Open or short circuit in the sensor circuit
- Voltage sensor fault
- Poor contact in the sensor connector
- Problems with the hybrid battery module
- Malfunction of the hybrid system control unit
How to Fix
- Checking the integrity of the sensor circuit wiring
- Diagnostics of sensor connectors and contacts
- Checking the functionality of the voltage sensor
- Diagnostics of the state of the hybrid battery module
- Resetting the error and testing the system after repair
Related codes
Error P0B72 by Vehicle Brand
FAQ
What does the P0B72 code mean?
P0B72 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense L Circuit
What causes a P0B72 error code?
The most common causes of P0B72 include: Open or short circuit in the sensor circuit; Voltage sensor fault; Poor contact in the sensor connector; Problems with the hybrid battery module.
How do I fix a P0B72 diagnostic trouble code?
To fix P0B72: Checking the integrity of the sensor circuit wiring. Diagnostics of sensor connectors and contacts. Checking the functionality of the voltage sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B72?
Do not drive — repair immediately
How much does it cost to fix P0B72?
The estimated repair cost for P0B72 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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