U3553
Hydrogen Tank B Valve Control Circuit
U3553 is an OBD-II diagnostic trouble code meaning: Hydrogen Tank B Valve Control Circuit. Common causes: open or short circuit in valve control circuit, hydrogen tank solenoid valve b malfunction. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Problems starting the engine
- Unstable engine idling
- Increased fuel consumption
Causes
- Open or short circuit in valve control circuit
- Hydrogen tank solenoid valve B malfunction
- Problems with the control unit
- Corrosion or poor contact in connectors
- Wiring harness damage
How to Fix
- Check valve control circuit integrity
- Check resistance and operation of valve B
- Inspect connectors and contacts for corrosion
- Check the control unit for errors
- Repair only from an authorized dealer
Related codes
Error U3553 by Vehicle Brand
FAQ
What does the U3553 code mean?
U3553 is an OBD-II diagnostic trouble code that indicates: Hydrogen Tank B Valve Control Circuit
What causes a U3553 error code?
The most common causes of U3553 include: Open or short circuit in valve control circuit; Hydrogen tank solenoid valve B malfunction; Problems with the control unit; Corrosion or poor contact in connectors.
How do I fix a U3553 diagnostic trouble code?
To fix U3553: Check valve control circuit integrity. Check resistance and operation of valve B. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U3553?
Do not drive — repair immediately
How much does it cost to fix U3553?
The estimated repair cost for U3553 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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