Volvo All Engines (2010 Emissions) Fault Code: SPN 3471 FMI 14 PID: PPID 328 Aftertreatment Fuel Pressure Control Actuator

The aftertreatment fuel pump is controlled by the aftertreatment control module (ACM). The ACM supplies voltage to the aftertreatment fuel pump. The aftertreatment fuel pump supplies fuel from the vehicles fuel system through the fuel shutoff valve to the aftertreatment diesel particulate filter (DPF) atomization module.

Conditions for diagnostic trouble code (DTC):
1) Aftertreatment fuel pressure above normal value

Observable symptoms
1) Regeneration not possible

Probable cause
1) Aftertreatment Fuel Pump
2) Aftertreatment diesel particulate filter (DPF) wiring harness, below raceway
3) Chassis Harness
4) Aftertreatment Control Module (ACM)

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