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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Controls And Fuel - 2.0L (LUZ) Diesel - DTC P2122 To DTC P2689 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P20EE, P249D, P249E or P2BAA: NOx Catalyst Efficiency/Closed Loop Reductant >> Repair Verification

Repair Verification

WARNING: This page is about a different variant/trim than selected.
  1. Install any components or connectors that have been removed or replaced during diagnosis.
  2. Perform any adjustment, programming or setup procedures that are required when a component or module is removed or replaced.
  3. Clear the DTCs.
  4. Ignition Off, all vehicle systems Off, this may take up to 2 minutes.
  5. Ignition On.
    NOTE: The diesel exhaust fluid must be greater than -7°C (+19°F) and not in frozen tank status before proceeding with this procedure.
  6. Verify there are no leaks in the system when commanding the Reductant System Leak Test On with a scan tool.
    • If a leak is found 

      Repair as necessary

    • If no leak is found 
  7. In order to clear the Exhaust Fluid Quality warning message, if illuminated, drive the vehicle 30 minutes.
    WARNING: Road test a vehicle under safe conditions and while obeying all traffic laws. Do not attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these precautions could lead to serious personal injury and vehicle damage.
    • If the message does not clear 

      A condition with the system still exists.

    • If the message clears 
  8. All OK.
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