directfax document 1084
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=100336
Printed Date: July 07, 2025 at 10:26 PM
Topic: directfax document 1084
Posted By: borrone821
Subject: directfax document 1084
Date Posted: December 23, 2007 at 10:11 AM
can anyone email me a copy of this? I'm installing a remote starter for a friend for christmas in his 07 Dodge Nitro and need this to finish up. I can't get anywhere on the https://www.directechs.com/Default.aspx?ReturnUrl=%2fLinks website, because everytime i click on the link from previous posts to get to the pdf, it sends me there. If anyone can send this to me, please email it to jamesdburak@hotmail.com. Thank you so much in advance. Jim
Replies:
Posted By: Twelvoltz
Date Posted: December 23, 2007 at 3:22 PM
No need to email it, it is (and has been since 9/28/06) in the downloads section: hereIf the Nitro has an immobilizer I would recommend the PKUCH2X, it will do that MUX wire as well as Sentry bypass. ------------- Installer, IT support, and FFL. I need less hobbies.
Posted By: borrone821
Date Posted: December 23, 2007 at 9:14 PM
Has anyone had issues with the induction loop antennas from the immobilization bypass systems?
I can get the remote starter working with a key in the on position, but not with the key just in the ignition or the acc position.
Any ideas? I'm pretty sure that the bypass isn't working, and the keysense line too. Does anyone know how to hook up the keysense line?
Thanks Jim
Posted By: borrone821
Date Posted: December 23, 2007 at 9:16 PM
we're using the 556uw from directed. Any advice would be great. thanks a ton Jim
Posted By: Twelvoltz
Date Posted: December 23, 2007 at 9:29 PM
borrone821 wrote:
I can get the remote starter working with a key in the on position, but not with the key just in the ignition or the acc position.
Your RS should not work with the key in the on position, this leads me to believe there is something wrong with your R values or your relays in your implementation of the 1084 document. Pull out your meter and make sure your R values are correct at the correct times.
The PURPLE / brown also works as keysense in the US version of the Nitro. It's ground through a 8.5Kohm resistor.
------------- Installer, IT support, and FFL. I need less hobbies.
Posted By: borrone821
Date Posted: December 24, 2007 at 11:21 AM
For the keysense, do i literally just put in the 8.5k resistor to ground? or do i need a relay? and what would the trigger be? The only question i have with that would be that the car would always see a "key in ignition" disabling the keyfob to lock and unlock the doors.
why would the rs not work with the key in the start position? that guarantees the keysense is good and the rf keyfob signal is there. Because of that, i'm guessing the only possible problems are the PURPLE / brown - trigger starter wire, the keysense, and the immobilizer bypass.
Pulling the circuitry out of the key and trying to start the car with just the key minus the RF signal, I can get the car to start for ~3 or 4 seconds, but then the immobilizer circuitry kills it, which has got to mean that the immobilizer bypass isn't working. I really don't trust that loop antenna.
So I know the keysense isn't working. I also know the immobilizer isn't working because of using the key minus the circuitry. And i need to implement the 1084 circuitry, but need to know how to include the keysense. thanks
Posted By: borrone821
Date Posted: December 24, 2007 at 11:23 AM
And per the 1084 document, do I really need to cut the PURPLE / brown wire? If so, how does this signal get through with just starting the car with the key?
Posted By: Chris Luongo
Date Posted: December 24, 2007 at 12:54 PM
What's all this about cutting the PURPLE / brown wire? I haven't even looked at the document yet, but the Nitro is easy......no cutting, just a few easy connections.
1. What kind of remote start are you installing?
2. What kind of bypass are you using?
3. Does your Nitro have a factory alarm?
Posted By: borrone821
Date Posted: December 24, 2007 at 8:52 PM
Basic Remote Car Starter
24921 with the 556uw immobilizer bypass
no alarm. any and all help would be greatly appreciated. I've got all the safety stuff done (brake pedal, hood pin, etc.)
the yellow wire going to the yellow grey to the solenoid,
the blue wire going to the pink/white
i have no idea about the green and white wires coming out of the remote starter; that's what the 1084 is supposed to be for
the bypass is getting powered correctly; we've got the key in the module but can't get the output of the loop antenna to trigger the rf around the key cylinder
let me know what you think. thanks Jim
Posted By: borrone821
Date Posted: December 26, 2007 at 10:50 AM
does anyone know on the 1084 document what they're talking about regarding the orange and purple - triggers? I don't have either of these wires and the signals coming from the remote starter are + 12 triggers.
Also, has anyone figured out the loop antenna issue? And do I just ground the keysense line to ground via an 8.5k resistor? If that's the case, then it would always see a "key in ignition," right? Which i do not want. thanks jim
Posted By: Chris Luongo
Date Posted: December 26, 2007 at 1:10 PM
Hopefully I don't miss any of your questions, I'll try to answer them all.
1. The purpose of letting the car see keysense is to disarm the factory alarm. Your remote starter should have a "pulse before start" output, sometimes called "factory alarm disarm."
The Dodge's wire is low-current, and no relay should be needed. You'd connect the remote starter's disarm output to the resistor, and the other side of the resistor to the car's PURPLE / brown wire. If your resistor value is a little off the mark, it'll probably work fine anyway.
Also, if you don't do keysense, it won't prevent the remote start from working.....it's just that the factory alarm will sound upon remote start.
2. It would be easiest to leave the bypass part for last. For now, leave your bypass unplugged, and concentrate on getting the car to sucessfully remote start with one of the keys 3/4 of the way into the ignition, in the Off position.
(Don't put the key all the way in, because that would trigger the factory keysense circuit....you want to make sure that your own connections are good.)
3. You mentioned the model number of your remote starter, but not the brand name, so probably no one here can help you with the remote starter's wire colors.
But, the car pretty much works like this....there aren't too many connections to be made.
--The pink white needs to see power, to turn on the ignition, fuel pump, heater, radio, and so forth.........just a basic connection from the ignition output of your remote starter.
--The PURPLE / brown needs two things:
A. A momentary negative pulse at the beginning of the remote starter, through your 8500-ohm resistor, to turn off the factory alarm.
B. A momentary negative pulse through a very small resistor (something like 180 ohms), to engage the car's starter motor and start the engine.
If your remote starter doesn't offer a negative starter output, but only a positive output, you'd wire up a relay like this:
85: starter output from RS
86: ground
87: connect your resistor here, connect other side of resistor to ground
87a: no connection
30: PURPLE / brown wire at key cylinder.
NOTE: There is usually a PURPLE / brown wire available in the main harness coming down the steering column, but it is NOT the correct wire. You MUST make your connection directly where the wires come out of the car's ignition switch.
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