U353E
High Voltage System Interlock Circuit N Performance
U353E is an OBD-II diagnostic trouble code meaning: High Voltage System Interlock Circuit N Performance. Common causes: open or short circuit in the interlock circuit, poor contact in high voltage system connectors. Estimated repair cost: $56–222.
Symptoms
- Check Engine light comes on
- Reduced vehicle power
- The car goes into emergency mode
- Inability to charge high voltage battery
- Error message on display
Causes
- Open or short circuit in the interlock circuit
- Poor contact in high voltage system connectors
- High Voltage Interlock Module Malfunction
- Contact corrosion
- Mechanical damage to wiring
How to Fix
- Carry out diagnostics of the high-voltage system (only by qualified specialists)
- Check the integrity of the locking circuit
- Inspect and clean connector contacts
- Replace damaged circuit components
- Repair only from an authorized dealer
Related codes
Error U353E by Vehicle Brand
FAQ
What does the U353E code mean?
U353E is an OBD-II diagnostic trouble code that indicates: High Voltage System Interlock Circuit N Performance
What causes a U353E error code?
The most common causes of U353E include: Open or short circuit in the interlock circuit; Poor contact in high voltage system connectors; High Voltage Interlock Module Malfunction; Contact corrosion.
How do I fix a U353E diagnostic trouble code?
To fix U353E: Carry out diagnostics of the high-voltage system (only by qualified specialists). Check the integrity of the locking circuit. Inspect and clean connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U353E?
Do not drive — repair immediately
How much does it cost to fix U353E?
The estimated repair cost for U353E is $56–222. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat