U354E

Hydrogen Tank C Temperature Sensor 1 Circuit

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Errors in the fuel system
Inability to refuel with hydrogen
Incorrect hydrogen temperature readings

Causes

Hydrogen tank temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Wiring harness damage
Malfunction of the fuel system control unit

How to Fix

Check the continuity of the temperature sensor circuit
Inspect the connectors and contacts of the sensor
Check the resistance of the temperature sensor
If necessary, replace the temperature sensor
Check the operation of the fuel system control unit
Repair only from an authorized dealer

Related codes

U354F U3550 U3551