PACCAR MX (2004 Emissions) Fault Code: U17B4 Water in Fuel Drain Control – Short Circuit to Ground on ECU (D420) Pin (A37)
PACCAR MX (2004 Emissions) Fault Code: U17B4 Water in Fuel Drain Control – Short Circuit to Ground on ECU (D420) Pin (A37)
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
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