PACCAR MX (2004 Emissions) Fault Code: U1900 CAN – Message (DPFC2) Time-Out from Aftertreatment System
PACCAR MX (2004 Emissions) Fault Code: U1900 CAN – Message (DPFC2) Time-Out from Aftertreatment System
SET CONDITIONS:
This DTC is set when the repetition rate of the received CAN message is lower than expected or when the message is not received at all.
DIAGNOSTIC CONDITION:
The diagnostic runs continuously when the ignition is keyed on or when the engine is running.
RESET CONDITION:
The DTC changes to inactive after the diagnostic runs and passes.
POSSIBLE CAUSES:
1. Wiring issues (interruption or contact resistance)
2. Defective components
3. Incorrect software configuration
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