U3554

Hydrogen Tank B Valve Enable Circuit

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$39–167 (est.)

Symptoms

Loss of engine power
Unstable engine operation
Check Engine Light Illuminates
Problems starting the engine

Causes

Open or short circuit in valve circuit
Hydrogen tank solenoid valve malfunction
Wiring Harness Problems
Control module malfunction

How to Fix

Checking the valve control circuit for an open or short circuit
Solenoid valve resistance testing
Inspect the wiring harness for damage
Checking the operation of the control module
Repair or replacement of faulty components