P0BA2

Hybrid/EV Battery Voltage Sense U Circuit High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Reduced power or performance
Limitation of operation in electric mode
Error message on display
The car may go into emergency mode

Causes

U Circuit Voltage Sensor Malfunction
Damaged or corroded wiring
Problems with connectors in the measurement circuit
Battery management module (BMS) malfunction
Problems with the highest voltage battery

How to Fix

Check the integrity of the wiring and connectors in circuit U
Test circuit voltage sensor U
Check Battery Management Module (BMS) operation
Scan the system for other fault codes
If necessary, replace faulty components

Related codes

P0BA0 P0BA1 P0BA3