P2D39

Forced Hybrid/EV Battery Disconnect

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

CHECK ENGINE indicator lights up
Loss of power or transition to emergency mode
The car may not switch to electric mode
High voltage system error message on dashboard
High voltage battery not charging

Causes

Breakage or damage to high-voltage cables
Faulty high voltage relays or contactors
Problems with the Battery Management System (BMS)
Overheating or overloading of the high-voltage battery
Short circuit in high voltage circuit

How to Fix

Visual inspection of high voltage cables and connectors
Checking the condition of contactors and relays of the high voltage system
Diagnostics of the battery management system using a scanner
Checking the voltage and resistance of the high-voltage battery
Repair only from an authorized dealer

Related codes

P2D40 P2D38 P0AA6