P0B4F

Hybrid/EV Battery Voltage Sense E Circuit

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–167 (est.)

Symptoms

Check Engine Light or Battery Warning Is On
Reduced electric vehicle range
Incorrect battery level display
Engine power limitation
Battery charging problems

Causes

Open or short circuit in the sensor circuit
Faulty battery voltage sensor
Poor contact in wiring connectors
Wiring harness damage
Battery management module (BMS) malfunction

How to Fix

Check the continuity of the voltage sensor circuit
Inspect connectors and contacts for corrosion or damage
Test battery voltage sensor
Check the status of the battery management module
Replace damaged components

Related codes

P0B4E P0B50 P0A80