second accessory not on alarm module
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=112608
Printed Date: May 11, 2025 at 8:53 PM
Topic: second accessory not on alarm module
Posted By: pcguy760
Subject: second accessory not on alarm module
Date Posted: March 23, 2009 at 9:14 PM
I am wiring an Audiovox Prestige APS787A remote start alarm system in a 2002 Escalade and the vehicle has a "2nd Accessory" wire but the alarm does not - just one accessory wire on the alarm! What do I do in this situation? Wow it has been some years since my last alarm install - things have changed a bit haha. Thanks!
Replies:
Posted By: pcguy760
Date Posted: March 23, 2009 at 9:23 PM
Ok I did more research on Google and I am not sure but, do I have to wire a seperate relay to power up the 2nd accessory from some sort of "trigger" / "constant on when running" wire (to trigger the relay)??
Posted By: chadwa2003
Date Posted: March 23, 2009 at 9:37 PM
you could use a relay and wire it like so
85 to first acc
86 to ground out while running
87 to fused 12 volts
30 to second acc
Posted By: Chris Luongo
Date Posted: March 23, 2009 at 10:26 PM
Not everyone on this forum agrees, but most of us don't power up the brown, Accessory 2 wire.
This way, the wipers will also remain off during remote start, which I think is better, because they won't ever be dragging across a dry windshield, or stuck in ice.
Posted By: pcguy760
Date Posted: March 23, 2009 at 10:33 PM
Hi, I was wondering about that too - if I did not power it up - but I am not sure what else it controls - do you happen to know? I do not mind if it wipers, etc. then I do not think I would go ahead and use it...hmmm.
Posted By: dtk1
Date Posted: March 24, 2009 at 12:44 AM
Chris Luongo wrote:
Not everyone on this forum agrees, but most of us don't power up the brown, Accessory 2 wire.
This way, the wipers will also remain off during remote start, which I think is better, because they won't ever be dragging across a dry windshield, or stuck in ice.
include me on this list i also dont power it up I just dont think its nesseasy its kind of like the new GM and there MUX all you need is ACC and ing never have I had a problem till this day
Posted By: chev104275
Date Posted: March 24, 2009 at 7:07 AM
the only one ive had a problem with i was a 05 trailblazer its caused the traction light just powered it up after and the light went away
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If i Can't Install it I Don't need it Joe
Posted By: Mike M2
Date Posted: March 24, 2009 at 10:09 AM
I have to agree, on an 02 Escalade you really don't need it....
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Mike M2
Tech Manager
CS Dealer Services
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