P0B50

Hybrid/EV Battery Voltage Sense E 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 readings
The vehicle goes into emergency mode

Causes

Faulty battery voltage sensors
Damage to the measuring circuit wiring harness
Poor contact in connectors
Problems with the battery management module
Battery cell degradation

How to Fix

Check the condition of the voltage sensors
Inspect the wiring harness for damage
Check connections and contacts in the circuit
Test the battery management module
Diagnose the battery condition

Related codes

P0B51 P0B49 P0A80