U3514

High Voltage System Interlock Circuit B High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–222 (est.)

Symptoms

Check Engine light comes on
Vehicle power limitation
Error message on the dashboard
Problems with charging a high-voltage battery
Hybrid/electric system malfunction

Causes

Open or short circuit in the interlock circuit
Lock sensor malfunction
Damage to connectors or wiring
Problems with high voltage relay
Software error in control module

How to Fix

Check the integrity of the locking circuit
Inspect connectors and wiring for damage
Check high voltage lockout sensor
Test the high voltage relay
Repair only from an authorized dealer

Related codes

U3513 U3515 U3516