U3513
High Voltage System Interlock Circuit B Low
U3513 is an OBD-II diagnostic trouble code meaning: High Voltage System Interlock Circuit B Low. Common causes: open circuit in high voltage blocking circuit, short circuit to ground. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- The car goes into emergency mode
- Loss of engine power
- Inability to start the vehicle
- Error message on the dashboard
Causes
- Open circuit in high voltage blocking circuit
- Short circuit to ground
- Lock sensor malfunction
- Wiring harness damage
- Connector problems or contact corrosion
How to Fix
- Diagnose the high-voltage system using a scanner
- Check the integrity of the locking circuit
- Inspect connectors and contacts for damage
- Check high voltage blocking sensors
- Repair only from an authorized dealer
Related codes
Error U3513 by Vehicle Brand
FAQ
What does the U3513 code mean?
U3513 is an OBD-II diagnostic trouble code that indicates: High Voltage System Interlock Circuit B Low
What causes a U3513 error code?
The most common causes of U3513 include: Open circuit in high voltage blocking circuit; Short circuit to ground; Lock sensor malfunction; Wiring harness damage.
How do I fix a U3513 diagnostic trouble code?
To fix U3513: Diagnose the high-voltage system using a scanner. Check the integrity of the locking circuit. Inspect connectors and contacts for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U3513?
Do not drive — repair immediately
How much does it cost to fix U3513?
The estimated repair cost for U3513 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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