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02 Sequoia Remote Start Alarm install

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=53506
Printed Date: June 13, 2024 at 5:39 PM


Topic: 02 Sequoia Remote Start Alarm install

Posted By: bretbowman
Subject: 02 Sequoia Remote Start Alarm install
Date Posted: April 07, 2005 at 8:38 PM

I installed a Clifford Avantguard 5 remote start alarm into my 2002 Sequoia and though the installation is almost complete I'm dealing with the following issues:

[Note: I have successfully installed a DEI 555x Immobilizer bypass (tested & working), I have successfully identified the YELLOW /GREEN keysense (factory alarm disarm wire), and I have wired the locks according to document 1070 with ONE exception: I configured two stage locks by wiring a relay to power driver door unlock on stage 1 and bridged this (ground out to unlock) connection to simultaneously ground keysense wire).
Problems:
1. When I unlock stage 1 (driver door only) this uses a relay to power the unlock motor (apparently the factory alarm senses the door being unlocked and sets off factory alarm).

NOTE: As soon as I hit unlock again [2nd time] (unlock wire to passenger door to unlock ALL other doors), this turns OFF the factory alarm. (perhaps something to do with the lock detection wire).  I'm trying to get this wired so that the factory alarm does NOT get triggered when I unlock stage 1 (drvier's door unlock).

2. When I remote start the vehicle, even though the 555x (immobilizer bypass) has a status output wired to give ground to the keysense wire (supposed to turn off factory alarm before remote starting vehicle), the factory alarm still goes off.  I should be able to remote start WITHOUT setting off the factory alarm.  It appears that the YELLOW /GREEN Keysense (factory alarm disarm) wire is NOT ALL that needs to be grounded in order to disable the factory alarm.

This has really got me puzzled because I have tested the YELLOW /GREEN "keysense" wire with a DMM and verified that it in fact shows ground when a key is inserted and nothing when the key is taken out of ignition.  DEI's Directech wiring diagrams states this as well as my Toyota Wiring diagrams.

I have always understood that you use this "factory disarm/no unlock" (often called keysense) wire to disable the factory alarm when your after market alarm unlocks your doors, OR when an after market remote start unit attempts to start your car.

I'd really appreciate some help on this one... especially from those of you who have INSTALLED an aftermarket alarm/remote starter of some sort and perhaps might have dealth with this before on a Toyota Sequoia.

Thanks in advance,

Bret



Replies:

Posted By: mo12v
Date Posted: April 07, 2005 at 9:27 PM

U might check your 1st & 2nd Unlock to see if they are Not reversed....
The Disarm should work with 1st Unlock.......

OEM Alarm DisarmRED / YELLOW (-)DRIVER DOOR



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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.




Posted By: bretbowman
Date Posted: April 07, 2005 at 9:51 PM

I am 100% sure that the unlock output and stage 2 unlock output are routed correctly to each door.  But, I'm looking back over DEI's document 1070 (https://directechs.com/techtips/pdfs/resources/security/directed_techtips/1070.pdf) and I think that you maybe right on the lock detection in driver door.  The second stage unlock wire (in passenger door) DOES turn OFF the honking factory alarm when I hit the arm/disarm button a second time to unlock stage 2 (the rest of the doors).  This is likely the reason why stage 1 is causing the factory alarm to trigger, because I did NOT diode and interface the stage 1 UNLOCK wire to this "lock detection" wire.

How about the remote start though?  The car is sitting out back right now, and if I hit the remote start button, the lights flast twice to confirm that the system received the remote start command from the remote control and as soon as the ignition powers on (a few seconds before cranking the starter), the factory alarm starts honking.

I did wire the 555x keysense output wire to the Toyota YELLOW /GREEN keysense wire (@ ignition) and it has the remote start INPUT wire so that it knows when to ground this wire AND send the transponder signal to the factory immobilizer, but though the car WILL remote start (confirming that it has successfully learned the transponder code), it doesn't seem to disarm the factory alarm first.

Thanks for the tip on the driver door.  I was aware of such a wire, but didn't put two and two together to realize that the passenger door after market connections not only unlocked all the doors, but also turned off the factory alarm... MOST LIKELY with THIS lock detect wire.





Posted By: auex
Date Posted: April 07, 2005 at 10:51 PM
Have you tried using the status output off of the alarm instead of using the keysense off of the bypass?

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Certified Security Specialist
Always check info with a digital multimeter.
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Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.




Posted By: bretbowman
Date Posted: April 09, 2005 at 2:55 AM

Thanks a ton for the suggestions guys.  I was able to get everything addressed today.  I guess the gods smiled upon me or something.  Got more done today than the past three days combined.

The driver door needed to be wired to ground unlock wire and "lock detection" wire simultaneously.  This was kind of obvious and I should have gotten that a LONG time before now.  A little embarrassing.

The remote start problem was that I had to use a third ignition (status out) instead of the remote start output because the remote start would send signal briefly before cranking the starter, but would NOT power the 555x DURING the entire cranking process.  I think what was causing the factory alarm to sound was the fact that since the 555x was not getting ground on remote start wire the WHOLE time, it was not grounding the keysense wire the whole time. 

I believe that cranking the ignition and starter while keysense wire is NOT grounded = set off factory alarm.

Regardless, it's all good now and I greatly appreciate all your helpful suggestions.  I guess I'm saying thanks for helping JUMP start my brain... it was pretty fried from working on this project for a couple hours a day over a couple weeks.  Rain has not been my friend during this install!  ;)



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2002 Toyota Sequoia Limited 2WD (Clifford G5 Avantguard 5 w/ 2 SmartWindows modules) - IT Engineer - NRA Life Member - LDS Return Missionary - Married for time AND ETERNITY - Eternally sealed family





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