P2463

DTC P2463 Diesel Particulate Filter - Soot Accumulation

Description

The ECM detects the condition of PM accumulations from the exhaust differential pressure sensor attached to the chassis frame near the diesel particulate filter (DPF) assembly. When it is reached to a certain amount of PM accumulations or a certain length of mileage the automatic regeneration starts. If the automatic regeneration cannot be completed by some reason the emergency regeneration is requested to the driver by illuminating the DPF lamp on the instrument panel cluster. If ECM detects that the DPF regeneration interval is more than a predetermined mileage this DTC will set.

Condition for Running the DTC

^ The battery voltage is between 10 to 16 volts.
^ The ignition switch is ON.

Condition for Setting the DTC

^ The filter regeneration interval is more than 325 miles (520km).

Action Taken When the DTC Sets

^ The ECM illuminates the MIL when the diagnostic runs and fails. Refer to DTC Type Definitions for Action Taken When the DTC Sets - Type A.
^ The ECM limits fuel injection quantity.
^ The ECM inhibits EGR control.
^ The ECM inhibits cruise control.

Condition for Clearing the DTC

^ Refer to DTC Type Definitions for Condition for Clearing the MIL/DTC - Type A.

Diagnostic Aids

^ If emergency regeneration is frequently requested refer to DPF System Emergency Regeneration Frequently chart in symptom diagnostic table.

Notice: This DTC is caused by incomplete automatic regeneration has occurred and emergency regeneration urged by the DPF lamp was disregarded or forgot, which was most likely caused by driver error. Primarily ask the driver about DPF lamp illumination in the past.

Circuit/System Testing DTC P2463