Network
generic or reserved
U3558
Hydrogen Tank C Valve
Generic fault reported on hydrogen tank C valve — combines circuit and mechanical performance issues into one code.
SystemNetwork
Typegeneric or reserved
GroupU3
Range / number5 / 58
Possible causes
- Valve electrical or mechanical failure high
- Gateway module routing CAN messages incorrectly low
- CAN terminating resistor (120 Ω) drifted out of spec low
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–3000 €
- Estimated time: 2–8 h
- Component: h2 tank c valve
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012