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Home >> Chevrolet >> 2022 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (1 Of 5)) >> Diagnostic Information and Procedures >> DTC P0087, P0089, P228C, P228D, P2293, P2C1F, or P2C20 >> 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 P163A, P163B is not set.
    • Go to next step: If DTC P163A, P163B is not set 
  3. Verify there are no DTCs set related to the following component/system:
    • B47B Fuel Rail Pressure Sensor
    • G12 Fuel Pump
    • K111 Fuel Pump Power Control Module
    • Q18A Fuel Pressure Regulator 1 - Control Circuit
    • Q18B Fuel Pressure Regulator 2 - Control Circuit
    • Q18C Fuel Pressure Regulator 3 - Control Circuit
    • Go to next step: If a related DTC is not set 
  4. Engine - Idling
  5. Verify the scan tool parameter: Fuel Pressure Sensor = 370 to 450 kPa (54 to 65 PSI)
    • Go to next step: If between 370 and 450 kPa (54 and 65 PSI) 
  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.