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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 517 (Engine Controls And Fuel - 3.6L (LLT) - DTC P0010 To DTC P0336) >> Diagnostic Information and Procedures >> DTC P0089, P00C6, P228C, or P228D: Fuel Pressure >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON
  2. Verify DTC P0016, P0017, P0018, P0019, P0090, P0091, P0092, P00C8, P00C9, P00CA, P0111, P0112, P0113, P0116, P0117, P0118, P0128, P0192, P0193, P0335, P0336, P0340, P0341, P0345, P0346, P0365, P0366, P0390, P0391, or P0628 is not set.
    • If none of the DTCs are set 
  3. Engine idling.
  4. Verify the Fuel Rail Pressure Sensor parameter is between 1.9-5.0 MPa (276-725 PSI).
    • If not within the specified range 

      Refer to Circuit/System Testing.

    • If within the specified range 
  5. Verify the Fuel Rail Pressure Sensor increases and decreases when commanding the Fuel Rail Pressure Control with a scan tool.
    • If the Fuel Rail Pressure Sensor does not increase and decrease with each command 

      Refer to Circuit/System Testing.

    • If the Fuel Rail Pressure Sensor increases and decreases with each command 
    6. WARNING:

    Road test a vehicle under safe conditions and while obeying all traffic laws. Do not attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these precautions could lead to serious personal injury and vehicle damage.

  6. Road test the vehicle and perform a wide open acceleration from a stop until the transmission shifts into second gear. On manual transmission applications, shift to second gear or stop the test near 7, 000 RPM. Repeat the test at least three times.
  7. Verify DTCs P0089, P00C6, P228C, or P228D does not set.
    • If any of the DTCs set 

      Refer to Circuit/System Testing.

    • If none of the DTCs 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 DTCs P0089, P00C6, P228C, or P228D does not set.
    • If any of the DTCs set 

      Refer to Circuit/System Testing.

    • If none of the DTCs set 
  10. All OK.
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