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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (6.7L Diesel - DTCS P2000 To U1601 - 2500 & 3500) >> Diagnosis and Testing >> P249F-Excessive Time To Enter Closed Loop DPF Regeneration Control >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. OTHER RELATED DTCS 
    1. Turn the ignition on.
    2. With the scan tool, read DTCs.

      Were there any fuel system or air handling sensor DTCs present?

      Yes 

      • If this DTC is present along with any fuel system or air handling system sensor DTCs, repair those DTCs before proceeding.
      • Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .

      No 

      • Go To  2.
  2. CHECK THE EXHAUST TEMPERATURE SENSORS 
    1. Turn the ignition off for five minutes to allow the Exhaust Temperature Sensors to stabilize.
    2. Turn the ignition on, engine not running.
    3. With the scan tool check the temperature values of the Exhaust Temperature Sensors.

      Are the Exhaust Temperature Sensors reading within 6°C (43°F) of each other?

      Yes 

      • Go To  3.

      No 

      • Replace the Exhaust Temperature Sensor that is out of range as compared to the others.
      • Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  3. CHECK THE ENGINE PERFORMANCE 
    1. Perform the CHECKING ENGINE MISFIRE / RUNS ROUGH / PERFORMANCE TEST diagnostic procedure. Refer to Diagnosis and Testing , 6.7L .

      Were any problems found?

      Yes 

      No 

      • Go To  4.
  4. CHECK FOR THE DIESEL PARTICULATE FILTER DAMAGED 
    1. Separate the exhaust and inspect the Diesel Particulate Filter for internal damage or signs of face plugging.

      Was any internal damage found in the Diesel Particulate Filter?

      Yes 

      • Replace the aftertreatment Diesel Particulate Filter in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .

      No 

      • Reinstall the exhaust and perform a mobile desoot of the aftertreatment Diesel Particulate Filter.
      • Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
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