P0BA7

Hybrid/EV Battery Voltage Sense V Circuit High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced performance of the hybrid system
Incorrect battery level readings
The car goes into emergency mode
Increased fuel consumption (for hybrids)

Causes

Battery voltage sensor fault
Damaged wiring or poor contact in the circuit
Problems with the Battery Management Module (BMS)
Short circuit in the sensor circuit
Software error in the control system

How to Fix

Check the integrity of the wiring and contacts in the sensor circuit
Test battery voltage sensor
Check Battery Management Module (BMS) operation
Update control system software
Replace faulty circuit components

Related codes

P0BA6 P0BA8 P0BA9