U351E

High Voltage System Interlock Circuit E Performance

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–222 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Inability to start the engine
Limitation of hybrid system operation
Error message on the dashboard

Causes

Open or short circuit in the interlock circuit
High Voltage Lockout Sensor Malfunction
Wiring harness damage
Problems with high voltage connection
Malfunction of the high-voltage system control unit

How to Fix

Check the integrity of the high voltage blocking circuit
Inspect all high voltage connections for damage
Check the condition of the blocking sensors
Scan the control unit for additional fault codes
Repair only from an authorized dealer

Related codes

U351F U3520 U0100