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Home › GMC › 2018 › Terrain SL › Repair and Diagnosis › Electrical › Charging Systems › 12 V Starting And Charging System › Diagnostic Information And Procedures › DTC P166F: Generator Information Not Programmed Engine Control Module (ECM) › Circuit/System Verification

Circuit/System Verification

  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.
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