PACCAR MX (2004 Emissions) Fault Code: U17B0 Water in Fuel Drain Control – Short Circuit to Supply on ECU (D420) Pin (A40)

CORRESPONDING OBD READINESS MONITOR:
None

REPAIR VERIFICATION:
1. Clear all DTCs.
2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.
3. Did the DTC come back?
– No, repair successful
– Yes, repair unsuccessful