LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> DTC P204B-P204D >> 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 P208A, P20E8, P20E9 is not set.
    • Go to next step : If DTC P208A, P20E8, P20E9 is not set 
  3. Perform the scan tool control function : Reductant Pump - ON - For 20 s
  4. Wait for greater than 10 s. - After the pump turns off.
  5. Verify the scan tool parameter : Reductant Pressure Sensor = -7 to 7 kPa (-1 to 1 PSI)
    • If not the specified value 

      Refer to : Circuit/System Testing

    • Go to next step : If the specified value 
  6. 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 the DTC does not set.

    • If the DTC sets 

      Refer to : Circuit/System Testing

    • Go to next step : If the DTC is not set 
  7. All OK.
scientia non olet · About LEMON Manuals