Alert 750R in 2000 Dodge Durango
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=69611
Printed Date: May 12, 2024 at 3:59 AM
Topic: Alert 750R in 2000 Dodge Durango
Posted By: rdlybeck
Subject: Alert 750R in 2000 Dodge Durango
Date Posted: December 30, 2005 at 9:33 PM
Hi, I seem to have a ground feedback that is causing the siren to sound(very faintly) when the vehicle is running by remote start and the dome light comes on such as when I unlock the door. I have my dome light relay, lock relay, and unlock relay ground wires all tied to the same ground as the system. Is this causing a feedback? Do I need to have each relay ground to a separate sheet metal screw or what else could be causing the siren to sound? It is really quiet when it does and only when the dome comes on while vehicle running. Thanks!
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Replies:
Posted By: robdog1969
Date Posted: December 31, 2005 at 9:51 AM
check the ground on the siren ,it sound as if it might draw ground through the alarm
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over 20 years of experience in the 12 volt industry
Posted By: rdlybeck
Date Posted: December 31, 2005 at 6:32 PM
The Siren is ground to a mounting screw I placed under the hood. It is ground by itself so should not be the problem.
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: Forseti
Date Posted: January 01, 2006 at 12:03 AM
What brand alarm? What type of siren ?
Posted By: rdlybeck
Date Posted: January 01, 2006 at 7:47 PM
Its in my topic, 2000 dodge durango, with Alert 750R installed. I believe it is a bad ground causing feedback, I will have to do some poking around on Monday.
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: rdlybeck
Date Posted: January 02, 2006 at 5:19 PM
Hi, I have been asking about this for a little while now and it still has me stumped. When I remote start my vehicle I can here the siren under the hood. It is very quiet but I can still here it. So I tested the red wire of the siren and it shows .46 volts when I push the transmitter button to remote start. Then after the vehicle has started the sren gets 2.46 volts and thats when I hear the siren. It does not matter if the doors are locked or unlocked, if the dome light is on or off. It does this all the time. What I want an answer on is do I have a ground loop??? I have the main ground wire from system, and the ground wires from dome light relay and door lock/unlock relays tied together and screwed into frame under dash. Is this good or do I need a separate screw for each of the four wires I have grounded? This is a 2000 Dodge Durango, and Alert 750R alarm and remote starter system. ------------- Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: xtremca2003
Date Posted: January 03, 2006 at 12:34 AM
Most of the time when the siren is very faint but you can hear it, it seems to be a ground issue. As long as you have a good ground, then you should not need to worry about separating them. Has it done it the whole time you have has it installed or has it sarted recently? You could take your multimeter and do a check on your ground on the main unit plug to the metal that your ground is hooked to to see if you have a loss. (or more resistance)
Chris
Posted By: rdlybeck
Date Posted: January 03, 2006 at 7:39 PM
I did not hear this the first week I had it in but then it seems to have started. I will be able to take it apart again on Friday so I will check my ground on the system and check for another location. This siren ground right now is not connected to anything else.
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: mtorres
Date Posted: January 03, 2006 at 10:15 PM
Could you let me know if you find the problem?I have the same one.
Posted By: rdlybeck
Date Posted: January 03, 2006 at 10:35 PM
Are you having the same problem in the same model? I have Alert tech's working on possable causes. Tehy are all saying to check my ground locations and see what the resistance is. I don't think this is the problem.
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: xtremca2003
Date Posted: January 03, 2006 at 10:45 PM
If you have a bad ground or the ground inside the unit is failing, it will find ground through the siren causing what you are hearing. The faint tone.
Posted By: mtorres
Date Posted: January 04, 2006 at 6:45 AM
It's a 2003 dodge ram 1500. I will check the ground in the evening and see.
Posted By: rdlybeck
Date Posted: January 05, 2006 at 3:29 PM
I am still having this problem. I still am unsure of the final verdict between having multiple grounds connected to same bolt or if I need to separate them to different screws. People have said this could cause a feedback loop. What is the best way to tie multiple grounds? I have these connected to a good chasis bolt: 1) system ground 2)Lock relay ground 3)Unlock relay ground 4)Neutral safety wire 5)Dome light relay ground Do I need to separate one of these wires from the group? Could one of these be sending the voltage to my siren on remote start? ------------- Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: mtorres
Date Posted: January 05, 2006 at 8:17 PM
I still have the same problem also and I have the grounds all separated.I changed the ground from the first place and still nothing.
Posted By: rdlybeck
Date Posted: January 05, 2006 at 8:23 PM
Whar kind of system do you have? Is it the Alert?
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: mtorres
Date Posted: January 05, 2006 at 8:36 PM
It's a prestige(audiovox) APS 785.
Posted By: rdlybeck
Date Posted: January 08, 2006 at 11:32 AM
Have you had any luck with your siren yet? Has anyone had this problem and fixed it? Still looking for advice. I think it has to be the brain now. ------------- Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: rdlybeck
Date Posted: January 08, 2006 at 3:07 PM
Now I just ran a wire from my negative battery cable and grounded the siren to that. It still goes off when I remote start the vehicle. It shows 2.46 volts so the siren isn't very loud but loud enough to hear. Where is this 2.46 volts comming from now that I have grounded the siren to the battery?
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: mtorres
Date Posted: January 09, 2006 at 6:21 AM
I found the problem. I ran the ground cable from the brain to the negative battery post and it quit doing it. I couldn't find a good ground under the dash board. If it qiuts doing it just run the cable into the engine bay and find a bolt that's screwed into the body and that should be it. Good luck and let me know if it works.
Posted By: rdlybeck
Date Posted: January 11, 2006 at 9:34 PM
So I have been having this feedback problem with my siren in another post and now tried switching the ground to a wire from negative battery post. 1. However my two way remote only locks the car, will not unlock, or start the vehicle. 2. I have a one way remote also that will lock and unlock, but will not start the vehicle 3. The vehicle still starts with key as always 4. All fuses look good on the wries of the system 5. This is a 2000 dodge Durango and the system is Alert 750R This system has been working great except the siren was getting 2.46 votls when running on remote start. All I did was change the ground. What could cause this??? ------------- Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: mo12v
Date Posted: January 12, 2006 at 8:27 AM
If you changed the GROUND.....Did you Relearn any Features, TACH or Remotes?? When Disconnecting Power, usually you have to start all over ------------- MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: rdlybeck
Date Posted: January 12, 2006 at 8:30 AM
I tried that, the wierd thing is that my LCD remote only locks and arms the truck. The other spare remote will lock and unlock. Neither will remote start, not even the dash lights come on.
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: rdlybeck
Date Posted: January 12, 2006 at 3:40 PM
I tried relearning the remote and still no change. The remote in question will only lock and arm. I tried a spare remote and that works so I think somehow my remote went bad at the same time I moved the ground. I talked with tech support for Alert and they said that the ground should not be longer than 6 inches and to not use a wire from the battery. I now used a mounting bolt for my steering. Problem is still siren getting voltage. I don't see how it can be a ground since I have tried so many places. Alert told me to try wiring in a relay in the siren to see if that fixes it. But the output wire giving 2.46 volts will trigger the relay in my mind and make the siren even louder wont it?? I want the siren to only sound when an alarm has been triggered. But currently it goes off everytime I remote start,(its very quiet) Help? ------------- Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: rdlybeck
Date Posted: January 17, 2006 at 6:41 PM
Still have not had any luck fixing this feedback. I'm getting tired of taking my dash apart and trying something that doesn't work. Does anyone have an idea that they know will work? I only want to take it apart one more time and be done with this vehicle.
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: rdlybeck
Date Posted: February 06, 2006 at 7:52 AM
Well I still have this problem of voltage to the siren while running off remote start. It does not do this all the time, mostly in cold weather. Is there anyone who has ideas to troubleshoot this? 2.46 volts is a lot on the siren when running. I'd like to get this solved. Thanks!
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Ryan Lybeck
"Wiring diagrams are nice but still double check with DMM"!
Posted By: mo12v
Date Posted: February 06, 2006 at 8:36 AM
If that is the BEST Tech Service can do, I would RETURN the whole System & purchase another Brand...........( If it is still under warranty )
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
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