P0BAF

Hybrid/EV Battery Voltage Sense X Circuit Range/Performance

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Hybrid system power reduction
Extended charging time (for PHEV/EV)
Reduced overall electric mileage
Malfunction indicator light comes on
Limitation of operation in pure electric mode

Causes

Malfunction of voltage sensors in the battery module
Measurement Circuit Wiring Harness Problems
Software error in Battery Management Module (BMS)
Corrosion or poor contact in connectors
Dry or swollen battery cells

How to Fix

Diagnosis of high-voltage battery condition
Checking the continuity of the voltage measurement circuit
Testing module voltage sensors
Updating BMS software if necessary
Replacing damaged battery cells or sensors

Related codes

P0BB0 P0BAE P0BB1