U3555
Hydrogen Tank B Valve Performance
U3555 is an OBD-II diagnostic trouble code meaning: Hydrogen Tank B Valve Performance. Common causes: solenoid valve malfunction, open or short circuit in control circuit. Estimated repair cost: $167–556.
Symptoms
- Reduced engine power
- Check Engine light comes on
- Problems starting the engine
- Unusual sounds from the fuel system
- Reduced range
Causes
- Solenoid valve malfunction
- Open or short circuit in control circuit
- Problems with the fuel system control unit
- Mechanical valve jamming
- Contact corrosion
How to Fix
- Check the integrity of the valve electrical circuit
- Test valve coil resistance
- Check valve operation using a diagnostic scanner
- Replace faulty valve if necessary
- Repair only from an authorized dealer
Related codes
Error U3555 by Vehicle Brand
FAQ
What does the U3555 code mean?
U3555 is an OBD-II diagnostic trouble code that indicates: Hydrogen Tank B Valve Performance
What causes a U3555 error code?
The most common causes of U3555 include: Solenoid valve malfunction; Open or short circuit in control circuit; Problems with the fuel system control unit; Mechanical valve jamming.
How do I fix a U3555 diagnostic trouble code?
To fix U3555: Check the integrity of the valve electrical circuit. Test valve coil resistance. Check valve operation using a diagnostic scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U3555?
Do not drive — repair immediately
How much does it cost to fix U3555?
The estimated repair cost for U3555 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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