NEED HELP. Battery is being drained at 4.8 amps with the car off.
HELLO everyone This is my first post and go figure its a cry for help.
I just bought a 2005 LS 430 and it all seemed great until it sat for a few days. I found the battery had been drained to 5 volts. I charged the battery back to 12.5 to 13 volts over night, and placed my multi meter in the series with the battery and found the battery being drained at a 4.8 amps. I went through all the fuse boxes mentioned in the owners manual and pulled each fuse individually and it did not change the amp draw. I am hoping that some of you have seen this and can give me some direction. I have only had the car for 2 weeks now. I do not want to pay the dealership for service unless i just got to. |
dunno if this helps or not.....my uncle had the same issue with a 2007 Acura RL. He took it to the dealer, and of course, they stated nothing was wrong, could not duplicate. An indie subsequently found that the bluetooth module in the car was drawing power, i.e. went bad, and even though my uncle doesn't use it, he would be unable to start the car if it sat more than two days. The indie apparently disabled the module. Apparently they traced it through the fuse boxes....
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good info. thanks ill look at the blue tooth and see.
I have been reading the forums here and disabled the key bob search function. I drove the car today for about 10 miles to make sure the alternator is charging properly and it is. I still have a draw of 4+ amps but the battery is holding the charge better. I also cleaned the battery post, this may have been the culprit all along. As the post where dirty and my not have allowed the battery to charge. Ill check back and let you all know what i find. |
Originally Posted by clp71220
(Post 9848465)
...placed my multi meter in the series with the battery and found the battery being drained at a 4.8 amps...
https://www.amazon.com/CM100-Amps-Current-Clamp-Meter/dp/B001TCWL1E/ref=sr_1_1?s=automotive&ie=UTF8&qid=1493225776&sr=1-1&keywords=GTC+CM100
that you can simply clamp over the conductor.Here is the power source flow chart for the 2001-2003 and 2004-2006 LS430. Starting from the branches out of the battery (Location 3 - Fusible Link Block) and work your way down stream until you find the individual fuse that is drawing the current. Please note that you may have more than one offenders. https://cimg9.ibsrv.net/gimg/www.clu...2f1295cbe4.jpg https://cimg0.ibsrv.net/gimg/www.clu...24ca5074f4.jpg |
Here are the locations of the various fuse and relay boxes...
https://cimg0.ibsrv.net/gimg/www.clu...a47efd94e2.jpg |
great post there thanks.
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You're welcome! Also be sure to give the car a few minutes to go-to-sleep before start checking for drain. The LS430 is configured to keep some lights and features on for several minutes after the car is turned off.
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I just go my 05 recently also and on 2 different occasions I let it sit for 5 days and the car would not start. After I jumped it everything was fine. I tested the battery after it sat do a couple I hours and it has 11.5 volts. The previous owner bought this interstate battery back in 2013 so I'm figuring it's about time to change it.
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Originally Posted by sha4000
(Post 9848666)
I just go my 05 recently also and on 2 different occasions I let it sit for 5 days and the car would not start. After I jumped it everything was fine. I tested the battery after it sat do a couple I hours and it has 11.5 volts. The previous owner bought this interstate battery back in 2013 so I'm figuring it's about time to change it.
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My battery shows a date of 3/2016. its a optima red top Manufacturer's Part Number:9022-091. It is a high dollar battery for sure. I checked the battery a while ago and its holding 12.5 volts. It Must have been the dirty battery terminals not allowing the battery to charge. i will check it again in the morning. It does still show the amp draw. i wonder if that amount of amps is normal for the car in sleep mode.
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It is not normal for the LS430 to drain the battery unused in a few days. Or weeks for that matter. Something is wrong.
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Roger that.
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For your reference, I just put a meter on my LS430 and got a 0.37A reading, with the SMART features on.
4.8A is excessive. On this 12V system, it is equivalent to burning a 57.6W light bulb. |
Originally Posted by clp71220
(Post 9849102)
My battery shows a date of 3/2016. its a optima red top Manufacturer's Part Number:9022-091. It is a high dollar battery for sure. I checked the battery a while ago and its holding 12.5 volts. It Must have been the dirty battery terminals not allowing the battery to charge. i will check it again in the morning. It does still show the amp draw. i wonder if that amount of amps is normal for the car in sleep mode.
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Roger that. I have ordered the ESI 307M Buddy Mini Current Loops to use with my dc clamp on amp meter. I will find this critter. the Battery was at 12.3 volts this morning Down from 12.5 volts.
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