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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 P0090-P0092, P00C8, P00C9, or P00CA: Fuel Pressure Regulator >> 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 P0685, or P1682 are not set.
    • If none of the DTCs are set 
  3. Verify the parameters listed below display OK or Not Run when commanding the Fuel Pressure Regulator On and Off with a scan tool.
    • Fuel Pressure Regulator Control Circuit High Voltage Test Status
    • Fuel Pressure Regulator Control Circuit Open Test Status
    • Fuel Pressure Regulator Control Circuit Low Voltage Test Status
    • Fuel Pressure Regulator High Control Circuit High Voltage Test Status
    • Fuel Pressure Regulator High Control Circuit Open Test Status
    • Fuel Pressure Regulator High Control Circuit Low Voltage Test Status
    • If OK or Not Run is not displayed 

      Refer to Circuit/System Testing.

    • If OK or Not Run is displayed 
  4. 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.
  5. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  6. All OK.
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