P0AF8

Hybrid/EV Battery System Voltage

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$167–2778 (est.)

Symptoms

Reduced vehicle power
Increased fuel consumption (for hybrids)
Warning messages on the dashboard
Limitation of operation in electric mode
Battery charging problems

Causes

Degradation of high-voltage battery cells
Problems with balancing battery cells
Battery management system (BMS) malfunction
Damage to high voltage wires or connectors
Problems with the battery cooling system

How to Fix

Diagnosis of high-voltage battery condition
Checking the Battery Management System (BMS)
Inspect high voltage connections for damage
Testing the battery cooling system
Replacing faulty battery cells or the entire battery

Related codes

P0AFA P0A80 P0A7F