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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1427 (Theft Deterrent System & Anti-Theft System) >> Description and Operation >> Vehicle Theft Deterrent (VTD) Description and Operation >> SECURITY Indicator Operation >> SECURITY Indicator Illuminated and Engine Does Not Start

SECURITY Indicator Illuminated and Engine Does Not Start

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

If the theft deterrent control module was unable to measure the ignition key transponder value or the PCM has detected a problem with the theft deterrent system. The VTD system is in Learn Mode. Refer to Programming Theft Deterrent System Components .

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