Alarm install on Lexus LS400

Constant 12 volts WHITE/ RED AND WHITE/ BLUE - IGNITION SWITCH HARNESS Ignition 12 volts BLACK/ ORANGE IGNITION SWITCH HARNESS Starter RED IGNITION SWITCH HARNESS Dome Light RED / WHITE (-) PIN SWITCH OR RED / YELLOW AT LIGHT * Trunk Pin Switch RED / BLUE (-) TRUNK PIN SWITCH OR LIGHT * Parking Lamp GREEN (+) AT FUSE BOX ("TAIL" FUSE) Power Lock GREEN/ YELLOW DRIVER KICK * #201 Power Unlock GREEN PANEL * #201 See Negative Door Lock Circuit Diagram * These Wires Can ALso Be Found At Theft Deterrent And Door Lock Control Unit (TDDLC) Located Behind Driver Dash, Above Fuse/Relay Block. At This Location GREEN/ YELLOW Will Lock & Arm, GREEN / WHITE Will Unlock & Disarm. TDDLC Unit Can Be Dropped After Removing Two Bolts (One Hidden). Constant 12 volts WHITE/ RED AND WHITE/ BLUE - IGNITION SWITCH HARNESS Ignition 12 volts BLACK/ ORANGE IGNITION SWITCH HARNESS Starter RED IGNITION SWITCH HARNESS Dome Light RED / WHITE (-) PIN SWITCH OR RED / YELLOW AT LIGHT * Trunk Pin Switch RED / BLUE (-) TRUNK PIN SWITCH OR LIGHT * Parking Lamp GREEN (+) AT FUSE BOX ("TAIL" FUSE) Power Lock GREEN/ YELLOW DRIVER KICK * #201 Power Unlock GREEN PANEL * #201 See Negative Door Lock Circuit Diagram * These Wires Can ALso Be Found At Theft Deterrent And Door Lock Control Unit (TDDLC) Located Behind Driver Dash, Above Fuse/Relay Block. At This Location GREEN/ YELLOW Will Lock & Arm, GREEN / WHITE Will Unlock & Disarm. TDDLC Unit Can Be Dropped After Removing Two Bolts (One Hidden). Good Luck

David

Ace Security

813-376-9778

Tampa

Donate to the 12volt

My sister had one of those cars, and I did an alarm/remote start on it, but unfortunately I don't remember too much about it. I can think of one thing, though. Notice that if you insert the key into one of the doors, and turn it to the lock (or unlock) position, this will also arm (or disarm) the factory Lexus alarm too. And two alarms are better than one, right? Also, notice that if you turn the key in the passenger's door to the unlock position, all doors unlock at once. But if you do the same in the driver's door, only the driver's door unlocks first, and then if you twist again, they all unlock. So here's what I'm getting at. Not only should you install your new alarm, but you should make sure to arm (and disarm) the factory one too, for added protection. You should be sure to connect your alarm's lock output to the wire that tests off the key cylinder in the door.....NOT the one that's coming from the rocker switch on the door panel. If you want all the doors to unlock at once, use the key-cylinder wire from the passenger door. If your alarm supports two-step unlocking, and that's a feature you want...simply use the wire from the drivers key cylinder instead. One negative pulse will unlock the driver's door; a second pulse will unlock them all.