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491T remote frequency

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=17551
Printed Date: July 17, 2025 at 3:00 PM


Topic: 491T remote frequency

Posted By: 80085
Subject: 491T remote frequency
Date Posted: August 13, 2003 at 3:32 PM

anyone know what frequency the 491T hornet remotes work on?  i'm thinking of replacing it with a 484T (a 4-button transmitter), but i think those work at 434mhz.



Replies:

Posted By: CutDog504
Date Posted: August 14, 2003 at 12:21 AM
I dont know the exact frequency, but I do know this much.... If yer 491t has a red led on the transmitter, you can replace it with pretty much any dei 4 button with a red led also. But you CANNOT use a transmitter with a green led, they are not compatible. I think the 491 can be replaced with a 485t. Check viper's website, they have a transmitter cross reference guide. Then you can be sure.



Posted By: 80085
Date Posted: August 14, 2003 at 10:41 AM

i checked directed.com's transmitter cross reference guide, and it only shows the 491T as a compatible remote.  the thing is, when you download the install and owner's manual for the latest version of the 553T, the pages show a 4-button remote.

if i can't find a 4-button replacement remote, how would i access channels 2 and 4 on the 2-button 491T?




Posted By: CutDog504
Date Posted: August 14, 2003 at 9:38 PM
if you have a 491t two button, the remote lights up red when you press the button. The 4 button replacement for this would be a 485t. And as for accessing the channels, you can only acess 3 channels with a two button remote. Channel two is by pressing button two for at least 3 seconds. Channel three is triggered by hold both buttons at the same time.


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