U3530
High Voltage System Interlock Circuit J High
U3530 is an OBD-II diagnostic trouble code meaning: High Voltage System Interlock Circuit J High. Common causes: open circuit in hv interlock circuit, short circuit in wiring. Estimated repair cost: $6–89.
Symptoms
- Check Engine Light Is On
- Disabling the High Voltage System
- Slow performance or inability to start
- Warning messages on the dashboard
- The car goes into emergency mode
Causes
- Open circuit in HV interlock circuit
- Short circuit in wiring
- Damaged high voltage system connectors
- Contact corrosion
- One of the HVIL components is faulty
How to Fix
- Visual inspection of high-voltage connectors and wiring
- Checking the integrity of the interlock circuit
- Cleaning contacts from corrosion
- Replacing damaged components
- Software error reset after repair
Related codes
Error U3530 by Vehicle Brand
FAQ
What does the U3530 code mean?
U3530 is an OBD-II diagnostic trouble code that indicates: High Voltage System Interlock Circuit J High
What causes a U3530 error code?
The most common causes of U3530 include: Open circuit in HV interlock circuit; Short circuit in wiring; Damaged high voltage system connectors; Contact corrosion.
How do I fix a U3530 diagnostic trouble code?
To fix U3530: Visual inspection of high-voltage connectors and wiring. Checking the integrity of the interlock circuit. Cleaning contacts from corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U3530?
Limited driving only, diagnose soon
How much does it cost to fix U3530?
The estimated repair cost for U3530 is $6–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat