P0B72

Hybrid/EV Battery Voltage Sense L Circuit

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–167 (est.)

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

P0B71 P0B73 P0A80