PRE-RELEASE
DTC P2458
| 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
|
|
| • |
Testing for Intermittent Conditions and Poor Connections
|
|
| • |
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:
|
|
| • |
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.
|
|
