P0B5F

Hybrid/EV Battery Voltage Sense H Circuit Range/Performance

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Reducing electric range
Incorrect battery level display
The vehicle goes into emergency mode

Causes

Open or short circuit in the voltage sensor circuit
Battery voltage sensor fault
Connector problems or contact corrosion
Battery management module (BMS) malfunction
Problems with high voltage battery

How to Fix

Check the integrity of the wiring and connectors in the sensor circuit
Check the resistance and signal of the voltage sensor
Scan the battery management module for additional errors
If necessary, replace the voltage sensor
Check and reflash the battery management module if necessary

Related codes

P0B5E P0B60 P0A80