P2D9F

High Voltage System Voltage High

Severity

🚨 Critical

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–1111 (est.)

Symptoms

Malfunction warning on the dashboard
Reduced engine power
The car goes into emergency mode
Inability to charge high voltage battery
Disabling the High Voltage System

Causes

High voltage battery fault
Problems with the charging system
Voltage converter fault
Damage to high voltage cables
Malfunctions of the control unit

How to Fix

Carry out diagnostics of the high-voltage system
Check the condition of the high-voltage battery
Inspect high-voltage connections for damage
Check the operation of the voltage converter
Update control unit software
Repair only from an authorized dealer

Related codes

P2D9E P2DA0 P0AA6