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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (1 Of 3)) >> Diagnostic Information and Procedures >> DTC P003A >> 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 P0045, P0234, P0299, P0651, P16B0-P16B2, P169E, P169F, P16FA, P2564, P2565, P2598, P2599 is not set.
    • Go to next step : If none of the DTCs are set 
  3. Engine - Idling
  4. Perform the scan tool control function : Turbocharger Vane Position Actuator - Increase & Decrease

    Verify the control rod of the actuator moves smoothly over the full range.

    • If the control rod does not move smoothly over the full range 
    1. Ignition/Vehicle - Off
    2. Verify the condition does not exist :
      • M103 Turbocharger Vane Position Actuator - Mechanically stuck control rod. / Visible Damage / Incorrect connection
      • Turbocharger - Debris / Restricted / Mechanically stuck/Mechanically damaged
    • Go to next step : If the control rod moves smoothly over the full range 
  5. Ignition/Vehicle - Off - Greater than 1 min
  6. Ignition - On / Vehicle - In Service Mode
  7. Verify DTC P003A is not set.
    • Go to next step : If the DTC does not set 
  8. 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.
  9. Verify DTC P003A is not set.
    • Go to next step : If the DTC does not set 
  10. All OK.