gx470 remote starter?
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=124463
Printed Date: May 14, 2025 at 1:58 AM
Topic: gx470 remote starter?
Posted By: snake07
Subject: gx470 remote starter?
Date Posted: November 15, 2010 at 10:06 AM
Replies:
Posted By: kreg357
Date Posted: November 15, 2010 at 11:26 AM
The IM05 / XK05 with PKT2 firmware will work.
Connect only Compustar lock / unlock to GX470 door lock / unlock. It will do both locks and alarm. However connect (-) Ground While Running to Keysense to disable alarm on remote start up. If you use (-) Ground While Running for both Keysense and the IM05 bypass module, diode isolate the two connections. ------------- Soldering is fun!
Posted By: snake07
Date Posted: November 15, 2010 at 11:41 AM
kreg357 wrote:
The IM05 / XK05 with PKT2 firmware will work.
Connect only Compustar lock / unlock to GX470 door lock / unlock. It will do both locks and alarm. However connect (-) Ground While Running to Keysense to disable alarm on remote start up. If you use (-) Ground While Running for both Keysense and the IM05 bypass module, diode isolate the two connections.
Kreg357, thanks lot for the info.
It's good to know what's the "Keysense" wire being used so Keysense wire also has a purpose to disarm the factory alarm.
I have another question, the location of the Tachometer wire, it's "at the PCM module under right center of dash". How to access to the PCM module ? can I access to it by removing the glove box ? is it near the NAV screen ?
Also, what year the Lexus GX470 equipped with a CAN port so the remote starter is able to transmit D2D to the ECU via immobilizer bypass to lock/unlock.......instead of hardwiring ?
Posted By: kreg357
Date Posted: November 15, 2010 at 11:51 AM
On Toyota / Lexus it's needed for the Factory alarm. You could do the "unlock before and lock after remot start" routine to keep the alarm from going off, but using Keysense is easier.
Most other cars, it's only used for "key in ignition" chime.
If you can flash the IM05, the 5.PKTI firmware is a much easier install. It's all at the steering column, not behind the glove box, with no wires to cut. ------------- Soldering is fun!
Posted By: kreg357
Date Posted: November 15, 2010 at 12:01 PM
As far as the Tach goes, use a DMM and see if Pin 9 at the OBD2 connector provides a Tach signal like most Toyotas do. It's right at the bottom of the drivers lower dash panel.
If that is no good, here is the Tach location from Bulldog Security :
TACH BLACK/ WHITE IN PIN 5, CONNECTOR E9 @ ECM, See NOTE *4
NOTE *4 THE ECM (ELECTRONIC CONTROL MODULE) IS LOCATED BEHIND THE GLOVEBOX.
------------- Soldering is fun!
Posted By: snake07
Date Posted: November 15, 2010 at 12:09 PM
kreg357 wrote:
If you can flash the IM05, the 5.PKTI firmware is a much easier install. It's all at the steering column, not behind the glove box, with no wires to cut.
How's the 5.PKTI firmware work ? is this considering D2D which required the remote starter equipped with D2D port and the Compustar CM300 does not equipped with a D2D port.
I'd appreciate if you can clarify how's the PKTI firmware would reduce # wires during installation.
Posted By: snake07
Date Posted: November 15, 2010 at 12:11 PM
kreg357 wrote:
As far as the Tach goes, use a DMM and see if Pin 9 at the OBD2 connector provides a Tach signal like most Toyotas do. It's right at the bottom of the drivers lower dash panel.
If that is no good, here is the Tach location from Bulldog Security :
TACH BLACK/ WHITE IN PIN 5, CONNECTOR E9 @ ECM, See NOTE *4
NOTE *4 THE ECM (ELECTRONIC CONTROL MODULE) IS LOCATED BEHIND THE GLOVEBOX.
Thank you for this info, I like the location of Bulldog better or the trick of pin 9 on OBDII is even easier.
Posted By: kreg357
Date Posted: November 15, 2010 at 12:21 PM
I always go W2W and the XK05 / IM05 flashed with 5.PKTI firmware will work in W2W mode just fine. The big problem with the PKT2 firmware is the wires that have to be run / connect to the ECM, usually behind the glove box. And one of the wires has to be cut. The 5.PKTI firmware allows a much cleaner install, all done at the immobilizer harness in the steering column, with no wires to cut. Plus it does the keysense, too. Used it in some recent installs ( Sienna and a Tundra ) with excelent results. Go to Xpresskit nd download / compare the two install guides : https://www.xpresskit.com/VehicleCompatibility.aspx?p=null&year=2006&make=Lexus&model=GX%20470&ps=1&s=0------------- Soldering is fun!
Posted By: snake07
Date Posted: November 15, 2010 at 2:02 PM
I got you. The purpose of keysense of the 5.PTKI is only for "key in ignition" chime like you said earlier, right ? Now the remaining question is can I get the XK05-PTKI pregrogrammed from any online store or I have to by a standard XK05 then flash with PKTI firmware by myself ?
Sorry for lots of questions !
Posted By: kgerry
Date Posted: November 15, 2010 at 4:01 PM
keysense shuts off the OE alarm.... use TI firmware... much easier... all XK modules can be reflashed..... locks can be grabbed analogue in the PKP or via data (TOYDL) in the DKP....
-------------
Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: kreg357
Date Posted: November 15, 2010 at 4:03 PM
If you don't have the XKLoader2 cable, try to purchase the XK05 from a place that will flash any requested firmware prior to shipment, that way you will get the latest version. I have gotten "old" stock items with the correct firmware but an older out of date version. Sometimes places like BestBuy might do it for you.
I believe the XK05s' Keysense output is meant to dis-arm the facrtory alarm and you won't need to run GWR from the remote start to the cars' Keysense wire. ------------- Soldering is fun!
Posted By: snake07
Date Posted: November 15, 2010 at 8:48 PM
kreg357 wrote:
If you don't have the XKLoader2 cable, try to purchase the XK05 from a place that will flash any requested firmware prior to shipment, that way you will get the latest version. I have gotten "old" stock items with the correct firmware but an older out of date version. Sometimes places like BestBuy might do it for you.
I believe the XK05s' Keysense output is meant to dis-arm the facrtory alarm and you won't need to run GWR from the remote start to the cars' Keysense wire.
Got you ! Thanks,
Let me try the XK05 keysense output to see if it'd disarm the factory alarm and if it's not then I'll use feed GND when running from the remote starter.
I've done some online search and there some places sold XK05-PKTI and it's only listed as XK05 flashed with the latest firmware like this website
https://www.buy.com/prod/xpresskit-xk05-data-transponder-override-interface/q/loc/111/205811420.html
Does it mean that this unit has been flashed with PKTI firmware ?
With your extensive knowledge about remote starter and alarm installation and with my curiousity, my question regarding the push button (smart start) technology:
Is there a big difference between installing an ignition key start and push button start ? as far as I can tell the only difference is the immobilizer bypass and with the push button (smart start) required an immobilizer bypass support smart start like the XK05-PKTI.
Posted By: snake07
Date Posted: November 15, 2010 at 9:02 PM
kgerry wrote:
keysense shuts off the OE alarm.... use TI firmware... much easier... all XK modules can be reflashed..... locks can be grabbed analogue in the PKP or via data (TOYDL) in the DKP....
kgerry,
You mentioned locks can be done via data on 06 Lexus GX470 ? if so what other functions can be done via data ?
Posted By: kreg357
Date Posted: November 16, 2010 at 3:21 AM
Re XK05 link: There is no exact mention of the firmware type actually on the module. While it does say it will work on Toyota, as you know, there are two firmwares that work for Toyota. Most of the XK05s I have seen come with the PKT2 flavor. PM to follow.
Installing a remote start on PTS cars is a little more complicated. More wires to connect. Also "key take over" can be an issue with some models. ------------- Soldering is fun!
Posted By: snake07
Date Posted: November 16, 2010 at 8:24 AM
kreg357 wrote:
Re XK05 link: There is no exact mention of the firmware type actually on the module. While it does say it will work on Toyota, as you know, there are two firmwares that work for Toyota. Most of the XK05s I have seen come with the PKT2 flavor. PM to follow.
Installing a remote start on PTS cars is a little more complicated. More wires to connect. Also "key take over" can be an issue with some models.
Sorry for the off topic. I just want to finish up the topic I started and I'd like to make an example out of the PTS cars, let say I'd to install the remote starter on an 08 Camry with PTS.
I went to Xpresskit compatibility website and found the immobilizer bypass module that's compatible. From the compatible table
https://www.xpresskit.com/VehicleCompatibility.aspx?p=-1&year=2008&make=Toyota&model=Camry%20%28Smart%20Key%29&ps=1&s=0
I picked the PKALL and based on their wiring diagram, If I connect all the wires from the wiring diagram, would I be able to remote start the car w/o a problem ?
Thanks again,
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