P0B55

Hybrid/EV Battery Voltage Sense F Circuit Range/Performance

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Reducing the range of an electric vehicle
Inability to switch to electric mode
Error message on display

Causes

Battery voltage sensor fault
Open or short circuit in the sensor circuit
Poor contact in connectors
Problems with the battery management module
Contact corrosion in a high voltage system

How to Fix

Check the continuity of the voltage sensor circuit
Test battery voltage sensor
Inspect and clean connector contacts
Check the operation of the battery management module
Replace faulty voltage sensor

Related codes

P0B56 P0B57 P0A80