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DTC P2428 > < DTC P2032 or P2033 - LCD, LBX, LBS

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DTC P2458

Diagnostic Instructions

    •  Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    •  Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC P2458 51:  Diesel Particulate Filter (DPF) Regeneration Time

DTC P2458 56:  Diesel Particulate Filter (DPF) Regeneration Time

DTC P2458 57:  Diesel Particulate Filter (DPF) Regeneration Time

Circuit/System Description

The soot particles accumulate in the channels of the DPF and are burned off at regular intervals, through a process called regeneration or cleaning. The DPF cleaning process prevents the DPF from clogging. Excess soot in filter can cause a drop in engine performance and crack the filter during regeneration.

Conditions for Running the DTC

    •  The engine is running.
    •  The engine coolant temperature (ECT) is between 73-96°C (163-205°F).

Conditions for Setting the DTC

    •  The ECM detect to long regeneration times
    •  The above condition is met.

Action Taken When the DTC Sets

DTC P2458 is a Type C DTC.

Conditions for Clearing the DTC

DTC P2458 is a Type C DTC.

Reference Information

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Wiring Repairs


DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References

Circuit/System Verification

  1. The following conditions must be met for the ECM to perform the turbocharger learn procedure:
    2. •  The A/C is OFF.
    •  The vehicle is in Park or Neutral.
    •  Start and idle the engine.
    •  The engine coolant temperature (ECT) is greater than 40°C (104°F).
  2. Perform the DPF Service Regeneration.
  3. Verify the DTC does not reset.

    4. If the DTC resets, replace the DPF filter.

DTC P2428 > < DTC P2032 or P2033 - LCD, LBX, LBS