U3519

Symptoms

• Check Engine light comes on
• Vehicle power limitation
• Inability to start the high voltage system
• Error message on the dashboard
• The car goes into emergency mode

Causes

• Open circuit in HVIL circuit
• Damaged high voltage system connectors
• Corrosion of contacts in the interlock circuit
• Malfunction of the high-voltage system control module
• Mechanical damage to wiring

How to Fix

1. Visual inspection of high voltage connectors and wiring
2. Checking HVIL circuit continuity with a multimeter
3. Finding and eliminating breaks in wiring
4. Cleaning contacts from corrosion
5. Diagnostics of the high-voltage system control module
6. Repair only from an authorized dealer

Related codes

Error U3519 by Vehicle Brand