P0AE3

Hybrid/EV Battery Precharge Contactor Circuit Stuck Open

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Reduced power or transition to emergency mode
Problems with charging a high-voltage battery
Disabling the hybrid system
Malfunction warning on the dashboard

Causes

Precharge contactor fault
Broken or damaged wiring
Poor contact in connectors
Problems with the control relay
Malfunction of the hybrid system control module

How to Fix

Check the continuity of the precharge contactor circuit
Inspect connectors and connections for corrosion or damage
Check the functionality of the precharge contactor
Test control relay
If necessary, replace the precharge contactor
Repair only from an authorized dealer

Related codes

P0AE4 P0AE5 P0AE6