power antenna

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circus boy

Copper - Posts: 49

Joined: December 09, 2002

Location: United States

Posted: December 11, 2002 at 9:44 AM / IP Logged

i did a lexus gs300 for radio now the power antena wil not go up,i didn't cut any wiresjust taped in to them,i tested all the wires atthe factory amp, with no luck none of them would make the antena go up, tried al the wires at the antena its self still wouldn't go up, couldn't find it behind the radio either,does any one have a clue to which wire it is? is there anything special i have to do to the antena to work?

any hep would be apreacited

thanks in advance

webguy

Copper - Posts: 89

Joined: December 11, 2002

Location: United States

Posted: December 11, 2002 at 5:10 PM / IP Logged

Not being familiar with the GS300 wiring, try checking the factory wiring harness at the unit with a standard test light. Sometimes the power antenna trigger uses a negative (ground), but I have been out of the installation bay for a couple of years now, so I'm not up to date a much as I would like to be. I am designing websites these days...........

Clean tools = Clean work!

NyxBass

Silver - Posts: 226

Joined: March 14, 2002

Location: United States

Posted: December 11, 2002 at 7:13 PM / IP Logged

Use a DMM, not a test light. Hit the wrong wire on that Lexus with a test light and you'll let the smoke out of the one of the many computers really quick.

/NyxBass

circus boy

Copper - Posts: 49

Joined: December 09, 2002

Location: United States

Posted: December 11, 2002 at 8:41 PM / IP Logged

one thing i forgot to say that it was a 1993 gs300

NyxBass

Silver - Posts: 226

Joined: March 14, 2002

Location: United States

Posted: December 11, 2002 at 8:49 PM / IP Logged

Here's what The12volt has for diagrams :

https://www.the12volt.com/installbay/detail.asp?info=alarm&year=1993&make=Lexus&model=GS300&ID=18197&type=Stereo

The antenna is marked as left rear, I think you shoudl check the tap into the wire coming from the antenna motor and make sure it is getting power when the HU is on radio, and that the HU is putting power out when the radio is on.

/NyxBass

circus boy

Copper - Posts: 49

Joined: December 09, 2002

Location: United States

Posted: December 11, 2002 at 8:54 PM / IP Logged

nyxbass should i tap the wire behind the hu or at the factory amp?

NyxBass

Silver - Posts: 226

Joined: March 14, 2002

Location: United States

Posted: December 11, 2002 at 9:17 PM / IP Logged

I'm not really sure. I havn't personally worked on this car, so I'm not sure of the details I would test to see if the wire uses a standard positive trigger from the amp, or if it's something else - ground, ground through resistor...something like that. If it is the standard 12v + signal, it may be being interupted by the amp if the amp isn't being used and is off. Or perhpas try ground pulses with resistors? I'm really not sure what kind of systems are used in that car.

/NyxBass

circus boy

Copper - Posts: 49

Joined: December 09, 2002

Location: United States

Posted: December 11, 2002 at 9:20 PM / IP Logged

thanks nyxbass!

NyxBass

Silver - Posts: 226

Joined: March 14, 2002

Location: United States

Posted: December 11, 2002 at 9:30 PM / IP Logged

That's what we're here for! Come on back if you need any more info.

/NyxBass

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power antenna

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