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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 118 (Engine Controls And Fuel - 3.6L (LF4 LGX) - DTC P0685 LGX To DTC P3436 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P26C8: Fuel Pump Flow >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:
    • Do not replace the engine control module for this DTC. DTC P26C8 is an informational DTC.
    • Correct any engine control and communication DTCs before diagnosing chassis control module DTCs.
  1. Verify there are no engine control or communication DTCs set.
    • If a DTC is not set 
  2. Verify there are no chassis control module DTCs set.
    • If a DTC is not set 
  3. 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.
  4. Verify the DTC does not set.
    • If the DTC does not set 
  5. All OK.
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