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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 135 (Engine Controls And Fuel - 3.6L (LF4 LGX) - DTC P0010 To DTC P0121 LGX) >> Diagnostic Information and Procedures >> DTC P00FF, P069E, P06EC, P0700, P0800, P0AC4, P1E00, P2561, P25A2, P25AF, P25C9, P26C8, or P26C9: Control Module Requested MIL Illumination (LGX) >> 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 these informational DTCs.
    • Correct any engine control and communication DTCs before diagnosing these DTCs.
  1. Vehicle in Service Mode.
  2. Verify there are no engine control or communication DTCs set.
    • If a DTC is not set 
  3. Verify there are no DTCs set in any other control module.
    • If a DTC is not set 
  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 does not set 
  6. All OK.
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