03 tahoe rs problem
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=101530
Printed Date: May 04, 2024 at 5:52 AM
Topic: 03 tahoe rs problem
Posted By: nhoff82
Subject: 03 tahoe rs problem
Date Posted: January 24, 2008 at 7:15 PM
I just installed an auto command remote start with the 457gw in a 03 tahoe. The remote start works, but when I use the key to start the tahoe the dome lights flicker and door ajar chime goes off the whole time it is running, it doesn't do this in remote start. If I unplug the 457 everything is fine also. Any help would be appreciated.
Replies:
Posted By: cntrylvr79
Date Posted: January 24, 2008 at 8:18 PM
Sounds like the gwr input of the 457g is shorting the ground. The domelights coming on and the door ajar message are normal with that piece when the remote start shuts down. The 457g sends a signal to the computer telling it that the drivers door was opened. This causes the computer to tell the radio to turn off. That part is normal operation.
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Cause I'm So white and nerdy...
First Class Certi-fried installer
Posted By: nhoff82
Date Posted: January 24, 2008 at 8:33 PM
The dome lights and door ajar never turn off while driving down the road.
Posted By: cntrylvr79
Date Posted: January 24, 2008 at 9:00 PM
Then the gwr input of the 457g is shorted to ground, or the wire its hooked up to from the r/s is latched to ground. That wire (blue/white) should ONLY have ground when the vehicle is remotestarted. It could always be a defective module, but I haven't come across any yet.
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Cause I'm So white and nerdy...
First Class Certi-fried installer
Posted By: nhoff82
Date Posted: January 24, 2008 at 9:13 PM
Sorry but i have to ask a dumb question: what is the gwr input? I have the input (blue/white) ground hooked to the WHITE/ black wire off the r/s which is ignition 3... is this right? thanks for your help!
Posted By: cntrylvr79
Date Posted: January 24, 2008 at 9:19 PM
gwr= ground when running. You have the blue/white hooked up to ignition 3. That sounds right (not familiar with the system you've got). Try disconnecting that wire from the 457g if the problem stops then there's an issue with that wire. Test it, it should only show ground when the r/s is active.
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Cause I'm So white and nerdy...
First Class Certi-fried installer
Posted By: nhoff82
Date Posted: January 24, 2008 at 9:31 PM
I checked the gwr wire and it has 3.95 volts when unit is off, then it goes to ground when the remotestart is running. I hooked the grey/black wire from the 457 to the dome light circuit and unhooked it, but it doesn't make a difference.
Posted By: nhoff82
Date Posted: January 24, 2008 at 9:44 PM
And yes if I disconnect the gwr the problem quits. Does that mean the module is bad?
Posted By: cntrylvr79
Date Posted: January 24, 2008 at 9:52 PM
test the output of the r/s first. If it only shows ground during r/s then the bypass is bad. If it shows ground all the time then the r/s is bad.
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Cause I'm So white and nerdy...
First Class Certi-fried installer
Posted By: nhoff82
Date Posted: January 24, 2008 at 9:57 PM
Thanks for the help. I guess I will try a new mod, it probably doesn't have warranty.
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