Elec. Short
Thread Starter
2nd Gear
Joined: Sep 2005
Posts: 2
Likes: 0
Elec. Short
1993 40 anniv.Corvette I have a electrical short that is killing the battery.
I believe it could be the motors for the headlights. When the 60 amp fuse is installed the left headlight motor spins for a short while. A strong spark can be seen and the battery will be dead in 2 days. Does anybody know how this can be traced or where a wiring schemetic can be found to help. what controls the timing of the motors and turns them on and off?
Joe
jchanney@comcast.net
I believe it could be the motors for the headlights. When the 60 amp fuse is installed the left headlight motor spins for a short while. A strong spark can be seen and the battery will be dead in 2 days. Does anybody know how this can be traced or where a wiring schemetic can be found to help. what controls the timing of the motors and turns them on and off?
Joe
jchanney@comcast.net
Last edited by jchanney; Dec 10, 2005 at 01:13 PM. Reason: No model year
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
what year?
If you have a short, and have isolated it to a specific circuit, your only hope is to trace the wires associated.
To do this effectively, you need the helm factory service manual - www.helminc.com
sometimes, you can find used copies for sale here or on ebay.
If you have a short, and have isolated it to a specific circuit, your only hope is to trace the wires associated.
To do this effectively, you need the helm factory service manual - www.helminc.com
sometimes, you can find used copies for sale here or on ebay.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by jchanney
Does anybody know how this can be traced or where a wiring schemetic can be found to help. what controls the timing of the motors and turns them on and off?
Joe
Joe
RACE ON!!!
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
Have a look to see whether these help at all. The first one seems to
describe similar motor run-on symptoms.
Headlight bushing repair (2004-01-18)
Headlight motor repair / Bushing replacement (06/08/01)
There're other topics of interest in the area, too. Tech Tips
.
describe similar motor run-on symptoms.
Headlight bushing repair (2004-01-18)
Headlight motor repair / Bushing replacement (06/08/01)
There're other topics of interest in the area, too. Tech Tips
.
Melting Slicks
Joined: Mar 1999
Posts: 2,535
Likes: 2
From: Rochester NY
Are you happened to have a Optima battery? if it is than the battery is the problem. The top post is hitting the ecm bracket causing to drained the battery. I have optima on my 93 everything seems to work fine just awhile. All the certain my optima are weaker and weaker. I thought I have a bad optima. I brought the battery back to the store and have them checked. They told me I got a good battery. I then reinstall the battery the battery and found the top post + post is hitting the bracket that I some time hearing sparking noise but did not know where the heck the arcking noise come from. I put in a new battery without the top posts. Solved all my battery drain problems.
Safety Car
Joined: Apr 2003
Posts: 3,793
Likes: 9
From: VA
Originally Posted by jchanney
When the 60 amp fuse is installed the left headlight motor spins for a short while. A strong spark can be seen and the battery will be dead in 2 days.
