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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Transfer Case - Mp 3713G) >> Diagnostic Information and Procedures >> DTC P0602 or P064F: Control Module Not Programmed/Unauthorized Calibration Detected >> Circuit/System Verification
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Circuit/System Verification

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  1. Ignition» On / Vehicle» In Service Mode
  2. Verify DTC P0602, P064F is not set.
    • If the DTC is set 
    1. Perform all necessary programming and setup procedures for the control module:K69 Transfer Case Control Module
    2. Verify the DTC does not set.
      • If the DTC sets» Replace the component:K69 Transfer Case Control Module
      • If the DTC is not set
    3. All OK.
    • If the DTC is not set 
  3. All OK.