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Factory Arm/Disarm vs. Lock & Unlock wires

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=141540
Printed Date: November 30, 2021 at 8:49 PM


Topic: Factory Arm/Disarm vs. Lock & Unlock wires

Posted By: prince504
Subject: Factory Arm/Disarm vs. Lock & Unlock wires
Date Posted: July 24, 2016 at 8:42 PM

I am looking to do a RS install on a 2010 Ford F150 and am considering going W2W. The bypass I wish to use only has a lock & unlock wire but the RS brain has both Factory Arm/Disarm and Lock & Unlock wires.

Can I use the Arm/Disarm wires alone or do I have to tie in the Lock/Unlock wires from the alarm brain as well and diode isolate?

The alarm is the Compustar CS6502-AS and the vehicle doesn't have an OEM alarm but I will be adding one.

Thnx




Replies:

Posted By: lurch228
Date Posted: July 24, 2016 at 11:42 PM
The Factory Arm /Disarm is only for control of a OEM alarm and are not need for the CS6502-AS you only need to use the Compustar W2W to the bypass for lock/unlock to operate the door locks through vehicle data.




Posted By: prince504
Date Posted: July 25, 2016 at 11:25 AM
lurch228 wrote:

The Factory Arm /Disarm is only for control of a OEM alarm and are not need for the CS6502-AS you only need to use the Compustar W2W to the bypass for lock/unlock to operate the door locks through vehicle data.


Thnx for the responce. Also, if I after the install, if I arm the vehicle with the Compustar alarm keyfob, will I be able to unlock the vehicle with the factory keyfob without triggering the aftermarket alarm?




Posted By: lurch228
Date Posted: July 25, 2016 at 2:12 PM
The Compustar might have a disarm input. If the unit is the same as the CM6000 then the Aux 1 input can be configured to disarm with a + or - pulse to disarm, and Aux 2 can be configured to Arm with a + or - pulse on the optional Green connector(CN14). These are set in options 4-06 and 4-07. Hopefully someone with compustar experience will chime in to verify.




Posted By: prince504
Date Posted: July 25, 2016 at 5:57 PM
lurch228 wrote:

The Compustar might have a disarm input. If the unit is the same as the CM6000 then the Aux 1 input can be configured to disarm with a + or - pulse to disarm, and Aux 2 can be configured to Arm with a + or - pulse on the optional Green connector(CN14). These are set in options 4-06 and 4-07. Hopefully someone with compustar experience will chime in to verify.


I can confirm it does have those inputs after looking at the guide. Aux 1 and 2 inputs can be set to (-) Arm and (-) Disarm

So would I need to tie these two wires to the Unlock & Lock wires of the vehicle to allow control of the aftermarket alarm from the OEM remote?




Posted By: lurch228
Date Posted: July 25, 2016 at 8:28 PM
Correct! You will need to make sure the manual power door lock switches are diode isolated from these wires otherwise they can be used to shut off alarm.




Posted By: prince504
Date Posted: July 25, 2016 at 8:45 PM
lurch228 wrote:

Correct! You will need to make sure the manual power door lock switches are diode isolated from these wires otherwise they can be used to shut off alarm.


I am familiar with using diodes (they allow for current to go one way), but please can you elaborate on how I would diode isolate the door switches?

So I imagine tapping the Arm/Disarm inputs into the Lock/Unlock wires. Can you describe how to implement the diodes from this point? How many diodes would I need? And what wires would I put them on?

Thnx




Posted By: lurch228
Date Posted: July 26, 2016 at 10:25 AM
I know it can be done but have never installed a Compustar system. I mainly use DEI products Which don't have this function. You will need to check and see if anyone has done this on you vehicle as I have not.




Posted By: prince504
Date Posted: July 26, 2016 at 11:09 AM
lurch228 wrote:

I know it can be done but have never installed a Compustar system. I mainly use DEI products Which don't have this function. You will need to check and see if anyone has done this on you vehicle as I have not.


Thnx




Posted By: davep.
Date Posted: July 28, 2016 at 2:38 PM
Your vehicle does not currently have an OEM alarm "but I will be adding one". Why? A properly installed and calibrated aftermarket alarm is more "effective" than the OEM alarm.

"Will the OEM fobs dis-arm the aftermarket alarm?". This is a common question. There are specific aftermarket alarms intended to be used with OEM key fobs. These have additional "defeat inputs" that do not allow the door switches to dis-arm the alarm system.

Install the aftermarket alarm and R/S, and abandon the factory fobs.

"Transplanting" a factory alarm system from a donor vehicle into an existing truck is not always straight-forward. Lots of research and studying factory wiring diagrams is required. Then one has to actually find and harvest the required components, wiring, and connectors from a wrecking yard. Your truck is now 20 years old. These parts are found on other models, but those models will also be 20 years old. May be difficult to find. Why bother? Do a good aftermarket install, and be done.




Posted By: lurch228
Date Posted: July 28, 2016 at 3:13 PM
davep. wrote:

Your vehicle does not currently have an OEM alarm "but I will be adding one". Why? A properly installed and calibrated aftermarket alarm is more "effective" than the OEM alarm.

"Will the OEM fobs dis-arm the aftermarket alarm?". This is a common question. There are specific aftermarket alarms intended to be used with OEM key fobs. These have additional "defeat inputs" that do not allow the door switches to dis-arm the alarm system.

Install the aftermarket alarm and R/S, and abandon the factory fobs.

"Transplanting" a factory alarm system from a donor vehicle into an existing truck is not always straight-forward. Lots of research and studying factory wiring diagrams is required. Then one has to actually find and harvest the required components, wiring, and connectors from a wrecking yard. Your truck is now 20 years old. These parts are found on other models, but those models will also be 20 years old. May be difficult to find. Why bother? Do a good aftermarket install, and be done.


Apparently you either didn't read everything or misunderstand what is being said. He not installing a OEM alarm, he just want to use keyless to disarm the Compustar alarm.




Posted By: davep.
Date Posted: July 28, 2016 at 3:55 PM
lurch228 wrote:


Apparently you either didn't read everything or misunderstand what is being said. He not installing a OEM alarm, he just want to use keyless to disarm the Compustar alarm.


You owe me an apology. He did indeed say he was going to add an OEM alarm. This from his opening post. Go read it. In the meantime bugger-off.

prince504 wrote:


The alarm is the Compustar CS6502-AS and the vehicle doesn't have an OEM alarm but I will be adding one.










Posted By: lurch228
Date Posted: July 28, 2016 at 4:48 PM
You can take poor broken English and get what you want from it or try to interpret What he is really trying to say. Either way the purpose of this form is to help people by answering questions and asking them to clarify what they are asking! Not get ignorant and tell people to bugger off. So have a nice day and Bless you heart!




Posted By: prince504
Date Posted: July 29, 2016 at 10:42 AM
davep. wrote:

lurch228 wrote:


Apparently you either didn't read everything or misunderstand what is being said. He not installing a OEM alarm, he just want to use keyless to disarm the Compustar alarm.


You owe me an apology. He did indeed say he was going to add an OEM alarm. This from his opening post. Go read it. In the meantime bugger-off.




lurch228 wrote:

You can take poor broken English and get what you want from it or try to interpret What he is really trying to say. Either way the purpose of this form is to help people by answering questions and asking them to clarify what they are asking! Not get ignorant and tell people to bugger off. So have a nice day and Bless you heart!


@lurch228 doesn't owe you an apology as you clearly misinterpreted my initial statement. Although I can see how you might think I meant an OEM alarm, considering I did state that I was installing a Compustar CS6502-AS -- which is a remote start and an alarm combo -- it should have been assumed in the context that I was referring to an aftermarket alarm.

Furthermore, if you read the following conversation btw @lurch228 and I, it would have cleared any assumption that I was interested in an OEM alarm.

I have never installed an OEM alarm nor do I ever plan too.




Posted By: lurch228
Date Posted: July 29, 2016 at 9:32 PM
@prince504 Thanks for the support and clarification on what you wanted to know. And the fact that he just plain missed the points of our conservation.

Hope you get it all working, If you have any further question just ask!





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