Add on R/S on lexus rx300

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=47455
Printed Date: July 18, 2025 at 11:47 PM

Topic: Add on R/S on lexus rx300

Posted By: angelsounds
Subject: Add on R/S on lexus rx300
Date Posted: January 11, 2005 at 12:53 PM

Anyone know where the keyless entry is on a 99 lexus rx300? Need to disable the ignition feed so the keyless can work with the ignition on.

Replies:

Posted By: jaurora
Date Posted: January 11, 2005 at 12:57 PM

Power Lock:	PINK (-)	INSIDE OF DRIVER'S DOOR ***
Power Unlock:	PINK/BLUE (-)	INSIDE OF DRIVER'S DOOR ***
Trunk Release:	N/A
Alarm Input Wire:	RED / WHITE (-)	IGNITION SWITCH HARNESS **
Notes:	*** These Wires Run Between the Switch and the Lock Module Inside of the Driver's Door. The Vehicle Uses a Multiplex System Inside To Communicate Lock/Unlock Signals

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MECP certified (If it really means anything)
Jeremy

Posted By: angelsounds
Date Posted: January 15, 2005 at 1:21 PM

I don't know if your right on that one. I had the vehice in front of me & the RED / white at the ignition harness was the illumination for the key cylinder.

Posted By: Jschult3
Date Posted: January 15, 2005 at 1:35 PM

Angelsounds you are correct. I just did this vehicle a week ago. This vehicle has a funky door lock interface. Take a look at dei tech doc # 1070. I don't know if you'll be able to do this or not. The security module should be above the brake pedal to the left a little. Your prob far better off just installing a rs/alarm combo unit. Range is better, and you already have to bypass the immobolizer. I'd just go all the way on this one. By the way don't forget to bypass the auto headlight function. The easiest way is to connect a relay to the hatch pin. This way the truck thinks you have the left the vehicle and starts the auto headlight timer to turn 'em off. Otherwise believe it or not they stay on until the battery goes dead. I'll send you my notes from this install that I have for a 2000 rx300. I compiled notes from this site and others before I did it.

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Jeff
Always Verify Wire information before Connecting! Just a Darn Good DIY'R