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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P1474-P1479, P147B, or P1488 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition - On / Vehicle - In Service Mode
  2. Verify DTC P142B, P142C, P142D, P142E, P142F, P1435, P1436 is not set.
    • Go to next step : If none of the DTCs are set 
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

    Verify DTC P1474, P1475, P1475, P1476, P1477, P1478, P1479, P147B, P1488 is not set.

    • If any of the DTCs are set 

      Replace the component : B136 Exhaust Particulate Matter Sensor

    • Go to next step : If none of the DTCs are set 
  4. All OK.
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