P0B52

Hybrid/EV Battery Voltage Sense E 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
Reducing electric range
The vehicle goes into emergency mode
Unstable operation of the power plant

Causes

Faulty battery voltage sensors
Damage to the measuring circuit wiring harness
Corrosion or poor contact in connectors
Battery management module (BMS) malfunction
Problems with high voltage battery

How to Fix

Check the condition of the voltage sensors
Inspect the wiring harness for damage
Check the contacts and connectors of the measuring circuit
Test the battery management module
Diagnose the condition of a high-voltage battery

Related codes

P0B53 P0B54 P0B55