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No Ground While Running Output

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=69262
Printed Date: April 19, 2024 at 2:00 PM


Topic: No Ground While Running Output

Posted By: jayyzr
Subject: No Ground While Running Output
Date Posted: December 26, 2005 at 10:40 PM

I ran into a remote starter made by Impulse... the model is imp 4040.... I was installing it on a 2001 chevy malibu. On the By pass module it asks for a Ground while running input to activate the module.. The Remote starter dosn't have an 3rd ignition wire, or any wire that could be used as a ground while running. It has an alarm disarm but that only last a second not during the whole remote start. I was wondering is there a way I could somehow use a relay to make a ground while running wire?? If So HOW???

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Taking It 1 Wire @ A Time...



Replies:

Posted By: jayyzr
Date Posted: December 26, 2005 at 11:17 PM

posted_image

I think this is the hook up I was looking for... to use the ignition wire from the starter ouput(86) to trigger the relay, (85) (30) to a ground and having (87) become ground while running



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Taking It 1 Wire @ A Time...




Posted By: ripley01
Date Posted: December 27, 2005 at 7:43 AM
Not sure what you're trying to accomplish, but spotted a possible flaw in your solution. The trigger input to your relay is not only connected to the remote starter, but also to the ignition key. So the relay will also engage when you run the car manually. Normally, you can separate two signals like these by using a diode, but as the currents of the ignition leads are huge, that is not practical in this case.




Posted By: dualsport
Date Posted: December 27, 2005 at 9:26 AM
Could try this-
posted_image
You just have to make sure the ignition power comes up before the momentary pulse is issued, otherwise it won't work. You could substitute a transistor for the first relay, but this would do






Posted By: jayyzr
Date Posted: December 27, 2005 at 2:11 PM
Thankyou for all the input on my question, I did have a extra 3rd ignition/2nd acc wire that I used to wire the relay up for the ground while running and it worked perfectposted_image Thanks alot

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Taking It 1 Wire @ A Time...





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