electrical problems
Thread Starter
7th Gear
Joined: Aug 2012
Posts: 7
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electrical problems
My 78 corvette has a short of somesort the courtesy lights will work for 3-4 hours then blow out the 20a fuse put a new one in and it blows out as fast as i push it in any ideas i think the antenna works off the same fuse could it be the antenna shorting (HELP)
Thread Starter
7th Gear
Joined: Aug 2012
Posts: 7
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Le Mans Master
Joined: Aug 2010
Posts: 9,272
Likes: 17
there's two simple ways to start, remove the light bulb and see if it still blows the fuse, if it doesnt the issue is in that cir-cut, if it still blows put the bulb back in and disconnect the antenna wire, kinda a process of elimination. after that a multimeter is a good thing to have.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Unplug the antenna motor harness in back, it's not cutting power in the end stop going up/down, and so it sets there drawing current and finally popping the fuse....bet the motor is hot too.....
Thread Starter
7th Gear
Joined: Aug 2012
Posts: 7
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I think I've narrowed it down to the antenna just have to figure out how to get at the wire for the antenna not sure what keeps the wire hooked up and once my arm is up there I have no vision at all and only the one hand in there
Heel & Toe
Joined: Jul 2012
Posts: 20
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To remove the power antenna there is a relay behind the rear centre console reinforcement. The 3 cables from the antenna (green, white and grey) run up into the body through a gromet behind the drivers side rear wheel. They then goto the relay at which point you should be able to disconnect them. Post relay has 2 cables (orange (hot) and yellow ( hot with ignition). If you have any more questions u can pm me. Hope this helps
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Thread Starter
7th Gear
Joined: Aug 2012
Posts: 7
Likes: 0
To remove the power antenna there is a relay behind the rear centre console reinforcement. The 3 cables from the antenna (green, white and grey) run up into the body through a gromet behind the drivers side rear wheel. They then goto the relay at which point you should be able to disconnect them. Post relay has 2 cables (orange (hot) and yellow ( hot with ignition). If you have any more questions u can pm me. Hope this helps
Heel & Toe
Joined: Jul 2012
Posts: 20
Likes: 0
Check this thread out there is an image of the power antenna relay which is under the armrest.
Http://forums.corvetteforum.com/c3-g...nna-wires.html
Http://forums.corvetteforum.com/c3-g...nna-wires.html