What are the reasons for the Cadillac anti-theft system activating and the car not starting?

[SadieMarie]

Cadillac anti-theft system activating and the car not starting may be due to the following reasons: Ignition system: The spark plugs in the vehicle may have malfunctioned, or the ignition module may have failed, causing the spark plugs to fail to ignite. As a result, the air-fuel mixture cannot ignite, and the vehicle cannot start. Fuel injection system: The fuel injectors in the fuel injection system may have malfunctioned, the fuel pump may not provide sufficient fuel pressure, or there may be a fault in the fuel injector wiring, preventing fuel injection. Consequently, the vehicle cannot start. Starting system: The battery in the starting system may be damaged and not have enough power to drive the starter motor, or the starter motor itself may be damaged, preventing the vehicle from starting.