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Home >> Lexus >> 2007 >> LS 460 >> Repair and Diagnosis >> External Pages >> Different car >> Section 253 (Body, Lock & Security System) >> Vehicle Security (Theft Warning) System >> System Description >> Initial Condition To Activate The System
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Initial Condition To Activate The System

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

The operation of the vehicle security system is controlled by the doors.

To activate the vehicle security system, BCM must receive signals indicating the doors are closed and locked.

When a door is open, BCM terminal 12, 13, 58, 62 or 63 receives a ground signal from each door switch.

When front door LH is unlocked, BCM terminal 22 receives a signal from terminal 12 (without power back door) or terminal 14 (with power back door) of main power window and door lock/unlock switch.

When front door RH is unlocked, BCM terminal 22 receives a signal from terminal 16 of power window and door lock/unlock switch RH.

When the back door is open, BCM terminal 58 receives a ground signal