Makes no sense...electrical
Thread Starter
Safety Car
Joined: Jan 2000
Posts: 3,903
Likes: 249
From: Orlando FL
Makes no sense...electrical
My 2000 Coupe has always been a car that will have a dead battery after 4-5 days with no use. Being electrically challenged, I have never really dug for a root cause. But, a couple days ago I noticed the glove box light on while driving to work. Yesterday I was washing the car and cleaning the interior. I figured I would adjust the glove box door to assure the light was going out. I had the doors open for maybe 30-40 minutes. After finishing, I went to move the car. Dead. I have driven the car all week and had zero issues starting the car that morning. Thinking back this is not the first time I have had to jump the car after having the doors open for a period of time. I put the car on the charger and it told me it had 12.2 Amps, 57% capacity. Battery is a Red Top, maybe a year old. Thoughts? Ideas? Pull the fuse on the interior light circuit and see if the car still goes dead?
TIA
Ron
TIA
Ron
Le Mans Master
Joined: Sep 2014
Posts: 5,278
Likes: 539
From: Kelowna BC
I'd start with getting a load test done on the battery. No way your car should have a problem starting after that short a time.
If the battery turns out OK then find BC's load test procedure (well, do this regardless).
If the battery turns out OK then find BC's load test procedure (well, do this regardless).
Last edited by grantv; Nov 5, 2016 at 08:18 AM.
Thread Starter
Safety Car
Joined: Jan 2000
Posts: 3,903
Likes: 249
From: Orlando FL
So, I had charged the car to 100%. Drove it Tuesday and Wednesday. Had to jump to Wednesday PM. I put the charger on it again last night. Went to start it this morning to take it for a battery check. Click click click. Jumped it and took it to Autozone. Test girl said that it was good, but needed a charge. Told them BS, it was charged to 100% last night. Told her to check the and see if there is a drain on the battery. Normal. So, charged 3 times in the last week and a half, only to be dead within 18 hours. She said let me see if we have one in stock. So, have a new battery again. We will see what happens next.
Melting Slicks
Joined: Jun 2002
Posts: 2,246
Likes: 66
From: Middletown CT
You could have a problem that is preventing the BCM from going into sleep mode.
Go to page 30, post #590, for info on diagnosing this problem.
https://www.corvetteforum.com/forums...post1567522286
Go to page 30, post #590, for info on diagnosing this problem.
https://www.corvetteforum.com/forums...post1567522286
Last edited by Greg_E; Dec 11, 2016 at 05:29 PM. Reason: Fixed it. Post #590
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
In sleep mode the drain should be around 20mA and that wouldn't kill your battery in such a drastic way as you are experiencing.You never said what happened to the glove compartment light. Is it stuck on, or were you able to fix it?
By the way, the link posted above takes you directly to the right post (590, not 599, obviously just a typo
).
Last edited by GCG; Nov 12, 2016 at 04:11 PM.
Thread Starter
Safety Car
Joined: Jan 2000
Posts: 3,903
Likes: 249
From: Orlando FL
In sleep mode the drain should be around 20mA and that wouldn't kill your battery in such a drastic way as you are experiencing.You never said what happened to the glove compartment light. Is it stuck on, or were you able to fix it?
By the way, the link posted above takes you directly to the right post (590, not 599, obviously just a typo
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Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
So, I had charged the car to 100%. Drove it Tuesday and Wednesday. Had to jump to Wednesday PM. I put the charger on it again last night. Went to start it this morning to take it for a battery check. Click click click. Jumped it and took it to Autozone. Test girl said that it was good, but needed a charge. Told them BS, it was charged to 100% last night. Told her to check the and see if there is a drain on the battery. Normal. So, charged 3 times in the last week and a half, only to be dead within 18 hours. She said let me see if we have one in stock. So, have a new battery again. We will see what happens next.
Your parasitic drain must be found if its not the battery.
Racer
Joined: Mar 2013
Posts: 477
Likes: 48
FYI--My glove box light was also staying on and draining my battery(but not to the extent of not starting the car--I also replaced it with a new gel type eventually)-- but an easy fix for the light is to take a stick on felt pad -like one that goes on the bottom of a chair to keep from marring the floor, and stick it under the push switch in the glovebox and voila, light goes off.
Burning Brakes
Joined: Oct 2014
Posts: 1,211
Likes: 60
From: Artesia NM
Just because a battery is not very old does not mean that it is very good. Batteries have unexpected issues also. As for going to Autozone for any kind of diagnostics, well.....I wouldn't let them check the air pressure in my tires!! Especially if it involves anything electrical, find someone more reliable for diagnosis and never, ever, buy a part from them that a wire hooks to. A battery from them should be ok though.
Thread Starter
Safety Car
Joined: Jan 2000
Posts: 3,903
Likes: 249
From: Orlando FL
Just because a battery is not very old does not mean that it is very good. Batteries have unexpected issues also. As for going to Autozone for any kind of diagnostics, well.....I wouldn't let them check the air pressure in my tires!! Especially if it involves anything electrical, find someone more reliable for diagnosis and never, ever, buy a part from them that a wire hooks to. A battery from them should be ok though.
Last edited by Ron C!; Dec 11, 2016 at 08:37 PM.