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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 180 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC P166F: Generator Information Not Programmed Engine Control Module (ECM) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
    1. Configure the K20 Engine Control Module.
    2. Verify the DTC does not set.
      • If the DTC sets, replace the K20 Engine Control Module.
      • If the DTC does not set
    3. All OK.
    • If DTC P166F is not set 
  2. All OK.
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