U3552
Hydrogen Tank A Valve Performance
U3552 is an OBD-II diagnostic trouble code meaning: Hydrogen Tank A Valve Performance. Common causes: valve mechanism jammed, open or short circuit in control circuit. Estimated repair cost: $167–556.
Symptoms
- Reduced engine power
- Check Engine Light Illuminates
- Unusual sounds from the hydrogen tank area
- Noticeable hydrogen odor (in rare cases)
- Limitation of fuel system operation
Causes
- Valve mechanism jammed
- Open or short circuit in control circuit
- Damage to the wiring to the valve
- Control unit malfunction
- Valve contact corrosion
How to Fix
- Check the integrity of the wiring to the valve
- Test valve coil resistance
- Check valve operation with a scanner
- Replace faulty valve if necessary
- Repair only from an authorized dealer
Related codes
Error U3552 by Vehicle Brand
FAQ
What does the U3552 code mean?
U3552 is an OBD-II diagnostic trouble code that indicates: Hydrogen Tank A Valve Performance
What causes a U3552 error code?
The most common causes of U3552 include: Valve mechanism jammed; Open or short circuit in control circuit; Damage to the wiring to the valve; Control unit malfunction.
How do I fix a U3552 diagnostic trouble code?
To fix U3552: Check the integrity of the wiring to the valve. Test valve coil resistance. Check valve operation with a scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U3552?
Do not drive — repair immediately
How much does it cost to fix U3552?
The estimated repair cost for U3552 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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