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VEHICLE SECURITY (THEFT WARNING) SYSTEM BL-157 C D E F G H J K L M A B BL When the doors are locked with electronic key and none of the described conditions exist, the vehicle security VEHICLE SECURITY SYSTEM ACTIVATION (WITH KEY OR ELECTRONIC KEY USED TO LOCK If the emergency key is used to lock doors, driver side door control unit (LCU01) terminal 10 receives a ground ● to terminal 3 and 2 of the front door key cylinder switch (driver side). ● through body grounds M24 and M114 If this signal (lock signal) from electronic key is received by BCM, the vehicle security system will activate VEHICLE SECURITY SYSTEM ALARM OPERATION The vehicle security system is triggered by ● opening a door ● opening the trunk lid ● opening the hood ● unlocking door without using the electronic key or emergency key. The vehicle security system will be triggered once the system is in armed phase, ● when BCM receives a ground signal at terminal 33, 37, 142, 143 (door switches), 146 (trunk lid lock ● when driver door control unit (LCU01) receives a ground signal at terminal 6 (driver side door unlock sen- ● when passenger, rear LH, RH door control unit receives a ground signal at terminal 13 (each door unlock Power is supplied at all times ● to headlamp relay-1 terminal 2 and ● through 15A fuse [No. 73, located in the fuse, fusible link and relay block (J/B)] ● to headlamp relay-2 terminal 2 and ● through 10A fuse [No. 56, located in the fuse, fusible link and relay block (J/B)] ● to security horn relay terminal 2. When the vehicle security system is triggered, ground is supplied intermittently ● from BCM terminal 5 (lamp relay) and 127 (security horn relay) ● to headlamp relay-1 terminal 1 and ● to headlamp relay-2 terminal 1 and ● to security horn relay terminal 1. The headlamps flash and the horn sounds intermittently. VEHICLE SECURITY SYSTEM DEACTIVATION To deactivate the vehicle security system, a door or the trunk lid must be unlocked with the key or electronic ● from terminal 1 and 2 of the driver side door key cylinder switch. When the emergency key is used to unlock the trunk lid, BCM terminal 145 receives a ground signal ● from terminal 1 and 2 of the trunk lid key cylinder switch. When the BCM receives either one of these signals or unlock signal from electronic key, the vehicle security |