Another Dead Battery, different reason
Thread Starter
Racer
Joined: May 2006
Posts: 255
Likes: 1
From: San Diego County CA
Another Dead Battery, different reason
Last week I went to the Spring Mounain driving school. (Great experience for.. for another post) At the end of the day, I went to the car ('10 ZR1) and it wouldn start. No lights - nothing.
One of the instructors jumped the car, it started fine. At idle, the batt volts were about 12.8 and 13.3 when you rev it up. I took it to Pahrump Valley Auto Plaza (chevvy dealer) at 4:30 pm. They took it right in and put it on their analyzer. I turned out the battery was discharged but said the charging system was ok. They charged the batt and I drove home with no problems.
At home, I put it in accessory mode, walked away for 30 min, It turned off accessory mode.
I turned the ignition on, walked away for 30 min. When I came back the message on the DIC said something like " conserver battery mode" but the lights and all were still on.
Back to Spring Mountain. I came out at noon to get something out of the car. It was very hot inside so I lowered the windows. a couple of inches. I assume that I must have left the ignition on.
Two points:
1. Evidently the iginition does not turn off by itself. (news to me, I thought it turned itself off)
2. The normal voltage for a charged battery is about 13.8 volts.
Anyone else have information or comments?
Thanks, Lloyd
One of the instructors jumped the car, it started fine. At idle, the batt volts were about 12.8 and 13.3 when you rev it up. I took it to Pahrump Valley Auto Plaza (chevvy dealer) at 4:30 pm. They took it right in and put it on their analyzer. I turned out the battery was discharged but said the charging system was ok. They charged the batt and I drove home with no problems.
At home, I put it in accessory mode, walked away for 30 min, It turned off accessory mode.
I turned the ignition on, walked away for 30 min. When I came back the message on the DIC said something like " conserver battery mode" but the lights and all were still on.
Back to Spring Mountain. I came out at noon to get something out of the car. It was very hot inside so I lowered the windows. a couple of inches. I assume that I must have left the ignition on.
Two points:
1. Evidently the iginition does not turn off by itself. (news to me, I thought it turned itself off)
2. The normal voltage for a charged battery is about 13.8 volts.
Anyone else have information or comments?
Thanks, Lloyd
Pro
Joined: Jul 2010
Posts: 736
Likes: 7
From: Chesapeake,VA
I believe accessory mode times out or shuts down upon opening and closing the door.
Ignition on, I'm not sure why anyone would leave that on but I'm not surprised to see it doesn't shut that mode down.
Ignition on, I'm not sure why anyone would leave that on but I'm not surprised to see it doesn't shut that mode down.
Pro
Joined: Apr 2008
Posts: 623
Likes: 0
From: Elk Grove CA
Mines an '06, so I'm not sure if the newer ones are programmed differently. My "ignition" (red light) shuts off if the door is opened or after 10 minutes if the door isn't opened. The accessory mode (yellow light) seems to shut off after 20 minutes, but can be reactivated if the door is reopened. It seems to follow the program the lights take to time out if you leave the door, hatch or hood open. I've never purposely clicked the ignition on after opening the door and leaving the car so I'd have to try that to see what it does.
Last edited by Vinnie T; Jun 13, 2011 at 06:02 PM.
Team Owner
Joined: Sep 2000
Posts: 25,009
Likes: 2,707
From: Far NW 'burbs of Chicago
St. Jude Donor '13
On our 2006 amd 2009, you can lower the windows and do similar stuff in Accessory, no need to use Ignition On and be running the fuel pumps, etc.
Our Accessory position does not turn off when we open the door, that only happens if the car is in Retained Accessory Power after shutting down the engine.
Accessory is supposed to time out after a while but i never tested that feature.
Good luck with yours!
Wanna trade?
Our Accessory position does not turn off when we open the door, that only happens if the car is in Retained Accessory Power after shutting down the engine.
Accessory is supposed to time out after a while but i never tested that feature.
Good luck with yours!
Wanna trade?
Burning Brakes
Joined: Sep 2004
Posts: 1,133
Likes: 20
From: Twisp WA
Lloyd:
For future reference when you attend Spring Mtn. you can give them your FOB while out on the track and they will move your car from the hot parking lot to their shop where their cars spend the night. Plus give your car a full exterior detail. This prevents your car sitting out in the baking heat all day while you are out on the track. Nice when class is over and they bring your car around the back of the Corvette bldg and it's not blistering hot inside.
Hope you enjoyed your track experience with Rick and the SM crew.
George
For future reference when you attend Spring Mtn. you can give them your FOB while out on the track and they will move your car from the hot parking lot to their shop where their cars spend the night. Plus give your car a full exterior detail. This prevents your car sitting out in the baking heat all day while you are out on the track. Nice when class is over and they bring your car around the back of the Corvette bldg and it's not blistering hot inside.
Hope you enjoyed your track experience with Rick and the SM crew.
George
Drifting
Joined: Oct 2007
Posts: 1,565
Likes: 2
From: The Great Pacific Northwest...........I carry a gun cause a cops too heavy.
The voltage you are seeing on the DIC is the charging system, not true battery voltage.
Thread Starter
Racer
Joined: May 2006
Posts: 255
Likes: 1
From: San Diego County CA
Thanks for the input guys.
I only recall turning on acc mode, but based on the evidence, I must have turned on the ignition. I was just suprised to learn that it does not turn off by itself. I had an 06 and I don't ever recall having this problem.
The batt voltages were as read on the DIC. I didn not have a meter with me to check. I was also suprised that 13.8 is an ok running voltage. Older cars used to be a little over 14.
George; Thanks for the info. I didn't hear about parking it out of the sun or detailing.
I only recall turning on acc mode, but based on the evidence, I must have turned on the ignition. I was just suprised to learn that it does not turn off by itself. I had an 06 and I don't ever recall having this problem.
The batt voltages were as read on the DIC. I didn not have a meter with me to check. I was also suprised that 13.8 is an ok running voltage. Older cars used to be a little over 14.
George; Thanks for the info. I didn't hear about parking it out of the sun or detailing.
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