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Home >> Chevrolet >> 2018 >> Silverado 1500 SSV, 4WD, Part Time T/Case Control, Gas >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information And Procedures >> DTC P1649: Immobilizer Security Code Not Programmed >> Repair Instructions

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

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

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