Power Antenna does not work
Race Director
Joined: Jul 2000
Posts: 16,495
Likes: 2,380
From: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
2020 C7 of the Year Finalist -- Modified
2020 C6 of the Year Finalist - Modified
What year is your Vette? Could be the relay or the antenna itself.
Race Director
Joined: Jul 2000
Posts: 16,495
Likes: 2,380
From: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
2020 C7 of the Year Finalist -- Modified
2020 C6 of the Year Finalist - Modified
There's a relay behind the passenger seat under the cargo door. Take the cargo tray out and you will see it bolted to the bulkhead. I have some troubleshooting instructions at home I'll PM to you this evening. I'm at work now and don't have access to them. The instructions were very helpful in isolating my antenna problem. I ended up changing the antenna and the relay.
Le Mans Master
Joined: Jul 2009
Posts: 6,647
Likes: 1
From: East Aurora N.Y.
St. Jude Donor '10
Can you hear a noise near the antenna, when you turn the radio on ? That would be the antenna motor humming. If so, it's pretty easy to fix yourself. The problem in that case, is that the filament inside the motor assembly is broken, but you can get a replacement filament line rather inexpensively, and fix it yourself. Use the search function here for "Power Antenna" There's tons of help, including my 2 below, for when I fixed mine.
http://forums.corvetteforum.com/c3-t...fine-then.html
http://forums.corvetteforum.com/c3-t...s.html:cheers:
Here's a picture of the filament...
And the inside, where it goes.
http://forums.corvetteforum.com/c3-t...fine-then.html
http://forums.corvetteforum.com/c3-t...s.html:cheers:
Here's a picture of the filament...
And the inside, where it goes.
Last edited by jeff79'; Apr 19, 2011 at 08:10 PM.
Le Mans Master
Joined: Jul 2009
Posts: 6,647
Likes: 1
From: East Aurora N.Y.
St. Jude Donor '10
http://forums.corvetteforum.com/c3-t...r-antenna.html
Just follow his instructions, using a regular car battery.
Last edited by jeff79'; Apr 19, 2011 at 08:03 PM.
Race Director
Joined: Jul 2000
Posts: 16,495
Likes: 2,380
From: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
2020 C7 of the Year Finalist -- Modified
2020 C6 of the Year Finalist - Modified
Sent you a PM on checking the relay or you can just follow it here.
You will need an ohm meter to start with set to DC volts. The black lead is for ground, red for power. You should be reading around 12 volts if good.
Behind the left rear speaker there will be an antenna harness with three wires - green, grey, and white.
To test the relay in the down mode, the ignition should be ON and the radio OFF. The green wire will be ground and the white wire will be power.
To test the relay in the up mode, the ignition should be ON and the radio should be ON. The grey wire will now be ground and the green wire will be power.
If the relay test is good, your problem is the antenna. If the relay is bad, change it. The relay for a 79 is cheaper in cost and the bracket is easily modified using your 81 as a guide.
You will need an ohm meter to start with set to DC volts. The black lead is for ground, red for power. You should be reading around 12 volts if good.
Behind the left rear speaker there will be an antenna harness with three wires - green, grey, and white.
To test the relay in the down mode, the ignition should be ON and the radio OFF. The green wire will be ground and the white wire will be power.
To test the relay in the up mode, the ignition should be ON and the radio should be ON. The grey wire will now be ground and the green wire will be power.
If the relay test is good, your problem is the antenna. If the relay is bad, change it. The relay for a 79 is cheaper in cost and the bracket is easily modified using your 81 as a guide.
Last edited by Tally Ho; Apr 19, 2011 at 09:15 PM.
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Pro
Joined: Aug 2010
Posts: 632
Likes: 38
From: Roseville CA
I installed a Metra Power antenna.
Here is a link to the installation I did:
http://www.calweb.com/~griffitt/MetraPowerAntenna.html
Tony G
Here is a link to the installation I did:
http://www.calweb.com/~griffitt/MetraPowerAntenna.html
Tony G
Last edited by Yellow1980; Apr 22, 2011 at 08:35 PM.
