Hi everyone. I am new to the site and was wondering if the battery drain problem is common on the 850's? I have had the battery and alternator checked out, and both work fine. I spent a few bucks on a tester and pulled a few fuses, and it looks like the problem lies with the central locking system.
Has anyone had problems with the CLS? Any recommendations on repairing for do-it yourselfer's? This problem is driving me nuts!
Battery Drain And Cls
Started by heffay, Oct 24 2005 04:09 PM
9 replies to this topic
#2
the underlørd
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Pretty Boy Racing
Posted 24 October 2005 - 04:13 PM
so you're sure it can't be a random light on somewhere, say the glove box.. or a improperly installed accessory?
2007.5 Chevy Duramax. Built Tranny. EfiLive. Twin Turbo. 600whp / 1000 ft lbs.
#3
the underlørd
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Pretty Boy Racing
Posted 24 October 2005 - 04:16 PM
QUOTE(yangotang @ Oct 24 2005, 09:14 AM) 
It is draining his battery.
i was asking for the reason why he thinks it's the cls...
2007.5 Chevy Duramax. Built Tranny. EfiLive. Twin Turbo. 600whp / 1000 ft lbs.
#4
maiku
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Posted 24 October 2005 - 04:17 PM
How old is the battery?
Are you sure that isn't the problem?
I left my visor (sunshade) night on all night long
When i got into the car i thought the battery was dead
cranked just fine
optimas are the best batteries
Are you sure that isn't the problem?
I left my visor (sunshade) night on all night long
When i got into the car i thought the battery was dead
cranked just fine
optimas are the best batteries
#5
rp850
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Posted 24 October 2005 - 04:37 PM
I don't know the first thing about CLS and why it might be draining your system. I can tell you I have a similar problem on another one of my cars that usually sees only weekend duty. I would not even attempt begin to try to trace where the drain on the system is on that car.
My solution was to hook the car up to a battery maintainer like this one:
http://www.batterychargers.com/details.cfm...D1562A&catid=18
It comes with a pigtail lead with a plug on the end of it that you permanently connect to the battery. If you know the car is going to sit for a while, just throw the charger on it and plug it in. Takes two seconds to hook up.
Of course, if you don't have the car in a garage with electricity this is not going to work for you. That being said, I think there's a similar device that is solar powered that might be better if that's the case.
My solution was to hook the car up to a battery maintainer like this one:
http://www.batterychargers.com/details.cfm...D1562A&catid=18
It comes with a pigtail lead with a plug on the end of it that you permanently connect to the battery. If you know the car is going to sit for a while, just throw the charger on it and plug it in. Takes two seconds to hook up.
Of course, if you don't have the car in a garage with electricity this is not going to work for you. That being said, I think there's a similar device that is solar powered that might be better if that's the case.
QUOTE(heffay @ Oct 24 2005, 11:09 AM)
Hi everyone. I am new to the site and was wondering if the battery drain problem is common on the 850's? I have had the battery and alternator checked out, and both work fine. I spent a few bucks on a tester and pulled a few fuses, and it looks like the problem lies with the central locking system.
Has anyone had problems with the CLS? Any recommendations on repairing for do-it yourselfer's? This problem is driving me nuts!
Has anyone had problems with the CLS? Any recommendations on repairing for do-it yourselfer's? This problem is driving me nuts!
1995 855T
172,000 miles
172,000 miles
#6 Guest_AlvinL_*
Guest_AlvinL_*
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Posted 24 October 2005 - 05:11 PM
CLS? When the car is locked or unlocked, the actuator motors runs for 2-3 seconds. In my 850, I can actaually hear the motors runs, strains because it's reached the end of it's travel, then shuts off. Go and listen at every door, gas cover and trunk that this is hapening. I've replaced a couple of actuators in a 93-850 where the motors have burned out due to some reason didn't stop. If this happened to you, you should have some burned out motors by now.
#7 Guest_heffay_*
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Posted 25 October 2005 - 03:55 AM
Hi everyone. Thanks for the replies. I will try to answer every one, or at least the one's I can remember at the moment.
The car has a new battery; which wasn't cheap. I even took the car to have the new battery checked out, and have the alternator checked. They both were o.k. So I took someone's recomendation and purchased a tester (looks like an icepick with a wire attached)and proceeded to check each circuit breaker while the ignition was off to see where a current drain was coming from. Number 6, the Central Locking, lit the tester brightly. In addition, number 15, Courtesy lamps, Diagnostics, Door warning lamps (remote keyless entry), and glove compartment lamp, also lit up, but was rather weak when compared to the Central Locking circuit.
The car is a stock 1997 850 non-turbo model. It is a great car with 87,000 miles. Any suggestions anyone? I would like to fix the problem without having to disconnect the CLS or possibly permantly disabling the alarm system.
The car has a new battery; which wasn't cheap. I even took the car to have the new battery checked out, and have the alternator checked. They both were o.k. So I took someone's recomendation and purchased a tester (looks like an icepick with a wire attached)and proceeded to check each circuit breaker while the ignition was off to see where a current drain was coming from. Number 6, the Central Locking, lit the tester brightly. In addition, number 15, Courtesy lamps, Diagnostics, Door warning lamps (remote keyless entry), and glove compartment lamp, also lit up, but was rather weak when compared to the Central Locking circuit.
The car is a stock 1997 850 non-turbo model. It is a great car with 87,000 miles. Any suggestions anyone? I would like to fix the problem without having to disconnect the CLS or possibly permantly disabling the alarm system.
#8 Guest_Guest_scott_*_*
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Posted 18 March 2006 - 07:27 PM
I have the exact same problem you do, did you ever get yours fixed?
Scott
Scott
#9
andrew_the_fox
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Posted 18 March 2006 - 09:11 PM
again with the restarting of old threads, dude join VS start your own thread, maybe make a cute lil sig with your cars info, so people can help you. reviving ancient threads is just annoying especially from a non member
#10
jjmaxx
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Posted 22 March 2006 - 08:11 PM
Not sure if this will help anyone but I had a battery drain issue--went thorugh 5 batteries in two years--just kept traing them in at walmart with no extra cash out of pocket. I eventually got tired of the problem an paid my mechaninc about $100 to figure it out--it took him a few hours but it was a short in the power sunroof that was draining the battery if the car sat for more than 3 days without running. It was big bucks to replace the motor so he just disconnected the wires and now no more drainage issues.
'96 850 GLT
80K miles
Naples, FL
80K miles
Naples, FL
