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Sep 17, 2008 | 12:09 PM

Triton170

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Joined: Sep 2008

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From: Macon GA

Drain

My 2000 C5 has a positive battery drain that kills the battery in about 2 days. When I disconnedct the negative battery post I get a significant spark and hear a clicking sound in both headlight assemblies. I removed the fuses for the headlamp door motors and the sound went away as did the sparks when i reconnected the battery. I have not used a volt meter yet to determine the battery drain but will do that later today or tomorrow. Both headlights, and all other electronics, work correctly.

?????

Sep 17, 2008 | 12:19 PM

dougbfresh

Le Mans Master

Joined: Nov 2005

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Anything AFTERMARKET on the car? Any Accidents where the wiring was involved???

Sep 17, 2008 | 12:24 PM

Triton170

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From: Macon GA

None.

Car is purely original and just ofer 20,000 miles. Box stock and never been in an accident.

Sep 17, 2008 | 12:25 PM

vsocks1

Melting Slicks

Joined: Oct 2007

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From: Cedarburg, WI

Not sure but you could check your headlight control module to see if it is warm and causing draw.
Also read this thread:
http://forums.corvetteforum.com/show...ght=mode+sleep

Sep 17, 2008 | 02:34 PM

BLOWNBLUEZ06

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Joined: Apr 2007

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From: Forney Texas

Mine sparks and has always clicked at the headlights when connecting the batter and I have never had a battery drained down. Even after not driving the car for over a month.

Sep 17, 2008 | 05:33 PM

Triton170

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From: Macon GA

I finally had a few minutes to hook up the multimeter. I get a constant reading of .131 on the 10A scale. I left it connected for about 30 minutes with no change. I pilled all the mini fuses under the hood and under the dash with no change in the readings. I did not pull the maxi fuses.

Sep 17, 2008 | 06:54 PM

Triton170

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From: Macon GA

I went back and pulled all the maxi fuses (one at a time) and pulled circuit breaker 35 (Dvr Pwr Seat) , 36 (Pass Pwr Seat), and 54 (headlights). No change in the reading - still .13 after the car has been sitting for over an hour.

Sep 18, 2008 | 07:00 AM

vsocks1

Melting Slicks

Joined: Oct 2007

Posts: 2,464

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From: Cedarburg, WI

Quote:

Originally Posted by 8VETTE7

Here's a thread from just a few days ago about a battery drain.

http://forums.corvetteforum.com/show...ighlight=diode

Read through it and pay some attention to post #19 by Bill Curlee the forum resident electric and electronic master. He mentions a way to test and see if the Alternator has a bad diode and may be the cause of the drain.

If that doesn't pan out I suggest that you PM Bill and ask for his help. He's an extremely knowledgeable guy and I've heard that he has instructed folk over the phone to diagnose their problems.

Also fill out more fo your profile to tell us at least what state you are in and some info about your car like year, A4 or M6 and maybe number of miles on the car etc. Makes it a lot easier to help you out when we have some info to work with.....

That is the same link that I posted earlier in this thread! Hoped it would have been read and used for troubleshooting!