C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Power Antenna Issue Pt 2

Thread Tools
 
Search this Thread
 
Old Apr 26, 2025 | 08:59 AM
  #1  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default Power Antenna Issue Pt 2

Hi,
well I’ve included the schematic of the installation for this power antenna, the black wire is the one that I thought was ground and connected to the ground, and I put the red wire to Power, I did this on a 12v test battery. Nothing happened? Then I hooked it up to the toggle switch the way it was before I unhooked it and still nothing? By looking at this installation instruction, what have I done wrong? Nothing was hooked up to the car that I can tell and all the fuses are good.

UPDATE….I smoked the motor….Uggg. Lesson, never assume the black wire is a ground, never assume wiring period….

Thanks in advance,
Powe.



Last edited by ETRADIO; Apr 26, 2025 at 12:24 PM. Reason: UPDATE!
Reply
Old Apr 27, 2025 | 08:21 PM
  #2  
av81's Avatar
av81
Racer
All Eyes On Me
Liked
Loved
Community Favorite
 
Joined: Mar 2018
Posts: 395
Likes: 52
From: wilmington Ma
Default

If the power antenna has a built in relay , it looks like it does , one black wire to ground , one wire to 12v battery, the other wire to radio wire that provides power when radio turned on , pretty sure it's blue , not sure why you using toggle, if the car came with power antenna it will not work with factory wiring because there is a relay in the battery box , so wire the new one right to the battery for constant 12v , I don't see how you can burn out the motor wiring it wrong , usually it just won't work till 2 wires have 12v and one ground.
Reply
Old Apr 27, 2025 | 08:36 PM
  #3  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default

It’s definitely not from the factory, It had a toggle switch in it when I bought it, I was hoping I didn’t ruin it, I tried several ways to hook it up but nothing works. There is no blue wire? Here’s what I have. But I did connect two of the power wires together. Only for a brief moment. Any ideas?


Reply
Old Apr 27, 2025 | 09:59 PM
  #4  
bmotojoe's Avatar
bmotojoe
Safety Car
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,381
Likes: 1,751
From: Seattle Area Washington
Default

Originally Posted by ETRADIO
Hi,
well I’ve included the schematic of the installation for this power antenna, the black wire is the one that I thought was ground and connected to the ground, and I put the red wire to Power, I did this on a 12v test battery. Nothing happened? Then I hooked it up to the toggle switch the way it was before I unhooked it and still nothing? By looking at this installation instruction, what have I done wrong? Nothing was hooked up to the car that I can tell and all the fuses are good.

UPDATE….I smoked the motor….Uggg. Lesson, never assume the black wire is a ground, never assume wiring period….

Thanks in advance,
Powe.

The ground at the switch is only for the light on the switch, it will not ground the antenna motor...
The short ground wire with eyelet (near motor in photo) is to land at the "L" bracket assuming the "L" bracket is mounted to chassis ground i.e. frame. .
Reply
Old Apr 28, 2025 | 05:20 AM
  #5  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default

Ok, that’s good, now if I touch either the red or black to the positive on the battery it should go up or down depending on which wire red or black, which the black is really a white wire as the black wire was added down stream toward the rear of the car. Is this correct ?
Reply
Old Apr 28, 2025 | 06:00 AM
  #6  
bmotojoe's Avatar
bmotojoe
Safety Car
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,381
Likes: 1,751
From: Seattle Area Washington
Default

First off, is that switch a momentary switch or a maintained switch?
A momentary switch will spring back to center when you release it, a maintained switch is either in the ON or OFF position...
Assuming the red is the fused +12vdc it lands at the switch terminal labeled Power.
The antenna motors switched wire will land at the terminal labeled ACC on that switch...
To make the light on the switch work you need to run a short ground wire to a chassis ground anywhere near where the switch is mounted.

Last edited by bmotojoe; Apr 28, 2025 at 06:07 AM.
Reply
Old Apr 28, 2025 | 06:02 AM
  #7  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default

It’s a maintained switch. It stays in the up or down position. I hooked up the toggle switch the way it was before I removed it, and it does not work, the light on the switch doesn’t even come on. Ii just tested the fuse, it’s good.

Last edited by ETRADIO; Apr 28, 2025 at 06:06 AM. Reason: Adding.
Reply
Old Apr 28, 2025 | 06:10 AM
  #8  
bmotojoe's Avatar
bmotojoe
Safety Car
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,381
Likes: 1,751
From: Seattle Area Washington
Default

Then take your meter and in the ohms position one lead on the Power terminal of the switch the other lead on the ACC terminal and flip the switch, does your meter show 0L or 0.00?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Apr 28, 2025 | 06:25 AM
  #9  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default

0.00
Reply
Old Apr 28, 2025 | 06:51 AM
  #10  
bmotojoe's Avatar
bmotojoe
Safety Car
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,381
Likes: 1,751
From: Seattle Area Washington
Default

Now you know in the ON position of the switch it will pass current to the motor...
What is your next move?
Reply
Old Apr 28, 2025 | 06:55 AM
  #11  
bmotojoe's Avatar
bmotojoe
Safety Car
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,381
Likes: 1,751
From: Seattle Area Washington
Default

Is the antenna still in the car or on the bench?
Reply
Old Apr 28, 2025 | 07:00 AM
  #12  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default




In the car.

Last edited by ETRADIO; Apr 28, 2025 at 07:03 AM. Reason: add picture
Reply
Old Apr 28, 2025 | 07:06 AM
  #13  
bmotojoe's Avatar
bmotojoe
Safety Car
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,381
Likes: 1,751
From: Seattle Area Washington
Default

If the motor is grounded correctly you should be able to touch the motors fused & switched wires to battery + side and if the motor is still good it should work...
Reply
Old Apr 28, 2025 | 07:14 AM
  #14  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default

Ok, I’ll give it a shot, just to be sure, you are saying touch the two wires I have now to the + on the 12v battery? Keep in mind that yesterday for a brief moment I put the acc wire to the neg side of the battery and the red to +.
Reply
Old Apr 28, 2025 | 07:27 AM
  #15  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default

Hey bmotojoe,

First, thank you very much for your help this morning. I appreciate you, second, nothing happens when I put those wires to the + side.
Reply
Old Apr 28, 2025 | 07:55 AM
  #16  
bmotojoe's Avatar
bmotojoe
Safety Car
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,381
Likes: 1,751
From: Seattle Area Washington
Default

Originally Posted by ETRADIO
Hey bmotojoe,

First, thank you very much for your help this morning. I appreciate you, second, nothing happens when I put those wires to the + side.
No problem!
The way I see your line diagram you need a consistent +12vdc to the motor, that is the fused line.
Then you need a +12vdc switched wire from the switch.
Let's say you are using "A" radio that has a 12vdc switched wire, meaning that anytime you turn the radio on the antenna would go up. And when you turn the radio off the antenna would go down. You are doing the same thing with that maintained switch.
Reply
Old Apr 28, 2025 | 08:05 AM
  #17  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default

I guess, since I’m not getting the motor to do anything, it’s time for surgery.
Reply

Get notified of new replies

To Power Antenna Issue Pt 2

Old Apr 28, 2025 | 08:10 AM
  #18  
bmotojoe's Avatar
bmotojoe
Safety Car
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,381
Likes: 1,751
From: Seattle Area Washington
Default

When the patient received the switched +12vdc to the negative post of the battery it was just too much...
It's not going to be surgery, it's more like a autopsy...lol
Reply
Old Apr 28, 2025 | 08:14 AM
  #19  
ETRADIO's Avatar
ETRADIO
Thread Starter
Instructor
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 195
Likes: 38
From: Jensen Beach Fl
Default

Yes, I will get it done. The new antenna will be here today. I have two options, Fixed antenna, or go back to the power antenna.
Reply
Old Apr 28, 2025 | 08:25 AM
  #20  
bmotojoe's Avatar
bmotojoe
Safety Car
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,381
Likes: 1,751
From: Seattle Area Washington
Default

I've owned my 77 for about 43 years now.
I tried a powered antenna for a short time but went back to the original mast. The powered antennas reception was terrible. And back then you had few choices, AM/FM or 8 track...
Reply



All times are GMT -4. The time now is 07:58 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE