P0BAA

Hybrid/EV Battery Voltage Sense W Circuit Range/Performance

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Reduced vehicle power
Limitation of operation in electric mode
Error message on the instrument panel
Problems with charging a high-voltage battery

Causes

Battery voltage sensor fault
Open or short circuit in wiring harness
Corrosion or poor contact in connectors
Problems with high voltage fuse
Battery management module malfunction

How to Fix

Check battery voltage with a multimeter
Inspect the condition of the wiring and connectors of the circuit
Check high voltage system fuses
Check/replace battery voltage sensor
Update battery management module software

Related codes

P0BAB P0BAC P0BAD