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Home >> Land Rover >> 2017 >> Discovery Sport SE >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft - Passive -- Discovery Sport/L550 >> Anti-Theft - Passive >> Description And Operation >> Description >> Keyless Start Backup

Keyless Start Backup

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If the vehicle has been unlocked using the emergency key blade or the smart key is not detected by the vehicle, it will be necessary to use the keyless start backup to disarm the alarm and start the engine. The following process must be followed in this event:

This process bypasses the data exchange between the KVM and the Central Junction Box (CJB); this is an inductive process and will operate even if the battery in the smart key is discharged. A transponder within the smart key is detected by the IAU. The IAU communicates this code with the CJB via a Local Interconnect Network (LIN) bus connection. The CJB then initiates the vehicle start process in the normal manner.