Hi all, just joined the forum, excellent site. I've been reading some threads about people asking about central locking info. I am an ex Clifford alarm and stereo installer and I'm just about to put the Clifford in my Lexus this week. Just thought I would share some photos & info on where I get the central locking to, as I pre wired mine when I first got the car.
The best place to get the locking is in the body control module in the drivers kick well. First of all disconnect the battery, then undo the 2 screws on the bcm. Undo the 2 plugs, pop the cover off, inside the unit there are 2 small phillips screws, you can then pull the circuit board out. On the back of the board there are 2 's' shape tracks (see pics below - I'm pointing to them with a screw driver). You need to cut the tracks and solder 4 wires onto the points (see pics below). Then wire your alarm to open circuit reverse polarity - I can put a diagram on here if anybody needs it. Hope this helps. Any questions feel free to email me.