DTC P2458
Precautions: General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
P2458: Diesel Particulate Filter Regeneration Duration Incomplete regeneration is counted exceeding the specified value. (1 D/C detection logic) |
•DPF® differential pressure sensor and/or its circuit
•EGT sensor-1 and/or its circuit •EGT sensor-2 and/or its circuit •EGT sensor-3 and/or its circuit •Fuel injector and/or its circuit •Exhaust system •DPF® •ECM |
Circuit Diagram
| [A]: | ECM connector (View: [a]) | 3. | Fuel injector No.2 | 6. | DPF® differential pressure sensor |
| 1. | ECM | 4. | Fuel injector No.3 | ||
| 2. | Fuel injector No.1 | 5. | Fuel injector No.4 |
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “Engine and Emission Control System Check” performed?
|
Go to Step 2.
|
|
| 2 |
Air intake / turbocharger circuit check
1)Check that air intake / turbocharger circuit is working properly.
Is check result OK?
|
Go to Step 3.
|
Repair or replace defective part(s).
|
| 3 |
Exhaust system check
1)Check exhaust system for obstructions, damage, leakage and breaks.
Is check result OK?
|
Go to Step 4.
|
Repair or replace defective part(s).
|
| 4 |
DPF® differential pressure sensor operation check
1)Check DPF® differential pressure sensor operation.
Is check result OK?
|
Go to Step 5.
|
Repair or replace defective part(s).
|
| 5 |
EGT sensor-1 check
1)Check EGT sensor-1 operation.
Is check result OK?
|
Go to Step 6.
|
Repair or replace defective part(s).
|
| 6 |
EGT sensor-2 check
1)Check EGT sensor-2 operation.
Is check result OK?
|
Go to Step 7.
|
Repair or replace defective part(s).
|
| 7 |
EGT sensor-3 check
1)Check EGT sensor-3 operation.
Is check result OK?
|
Go to Step 8.
|
Repair or replace defective part(s).
|
| 8 |
Fuel Injector circuit check
1)Check all fuel injector drive circuits (high side) and (low side) according to Step 1 of Fuel Injector Circuit Check:D16AA.
Is check result OK?
|
Go to Step 9.
|
Repair or replace defective part(s).
|
| 9 |
DPF® replacement
1)Replace DPF®.
2)Clear DTC.
3)Set ignition “OFF”.
4)Check DTC.
Is DTC P2458 still detected?
|
Replace ECM and recheck DTC.
|
End.
|