P0B57

Hybrid/EV Battery Voltage Sense F Circuit High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

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

Causes

Battery voltage sensor fault
Open or short circuit in the sensor circuit
Wiring harness damage
Problems with the battery management module
Malfunction of the hybrid battery itself

How to Fix

Check the continuity of the voltage sensor circuit
Test battery voltage sensor
Inspect the wiring harness for damage
Check the operation of the battery management module
Diagnose the condition of the hybrid battery

Related codes

P0B56 P0B58 P0A80