U3555

Hydrogen Tank B Valve Performance

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

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

U3550 U3556 U3560