P0B25

Hybrid/EV Battery A Voltage Low

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$167–889 (est.)

Symptoms

Reduced vehicle power
Reducing electric range
Check Engine Light Illuminated
Switching to emergency mode
Problems with charging a high-voltage battery

Causes

Degradation of high-voltage battery cells
Problems with the cell balancing system
Malfunction of voltage sensors
Damage to battery wiring harness
Problems with the Battery Management Module (BMS)

How to Fix

Diagnosis of battery cell condition
Checking the cell balancing system
Voltage Sensor Testing
Checking the integrity of the wiring harness
Updating or replacing the Battery Management Module (BMS)
Replacing faulty battery cells

Related codes

P0B24 P0B26 P0B27