P0BA0

Hybrid/EV Battery Voltage Sense U Circuit Range/Performance

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Reducing electric range
Incorrect battery level display
Switching to emergency mode

Causes

Open or short circuit in the voltage sensor circuit
Battery control module malfunction
Poor contact in circuit connectors
Wiring harness damage
Software error in control module

How to Fix

Check the integrity of the voltage sensor circuit
Inspect and clean all contacts in the circuit
Test battery voltage sensors
Check the condition of the wiring harness
Update control module software
If necessary, replace faulty components

Related codes

P0BA1 P0BA2 P0B9F