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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> DTC P244C >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that DTCs P113E, P2470, P2471, or P2472 are not set.
    • Go to next step: If no other DTCs are set 
  3. Verify the integrity of the entire air induction system and exhaust system, including all turbocharger components by inspecting for the conditions listed below:
    • Leaks or restrictions in the hoses and pipes to the B136 Exhaust Differential Pressure Sensor
    • Damage to induction system components, including the turbocharger and charge air cooler
    • Loose or improperly installed components
    • Air flow restrictions
    • Exhaust leaks, including the mating surface between the turbocharger and exhaust manifold
    • If a condition is found 

      Repair as necessary

    • Go to next step: If no condition is found 
  4. Perform the Diesel Particulate Filter Service Regeneration.
  5. Verify the regeneration completed.
    • If the regeneration did not complete 

      Replace the Diesel Particulate Filter

    • Go to next step: If the regeneration completed 
  6. All OK.
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