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Home >> Cadillac >> 2017 >> CTS Base, AWD >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC P1649: Immobilizer Security Code Not Programmed >> Repair Instructions
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Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for engine control module replacement, programming, and setup.

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