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BMW 2005 LT got a parasitic draw of 1.02 ma with everything off pulled all fuses but still showing up anywhere else I may look possibly a relay sticking any ideas ?

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1.02 ma is extremely low and may be the current used by the ecm to maintain the CPU memory and to run the clock setting
a current draw that low will not discharge a fully operational battery
consider this --a good 500 cranking amp battery with a discharge of 1ma will last over a year or years before it shows signs of needing a recharge
however if the battery has an problem cell then internal discharge will flatten a battery in hours
have a load test done on the battery

Posted on Dec 14, 2016

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2005 lt got a parasitic draw of 1.02 ma pulled all fuses still shows up. is there anywhere else i could look mebay relay's ?


a 1.02ma draw is nothing, and is the sort of draw your clock and the flashing light would draw.

In that same conversation, it was suggested that a 200-milliamp draw was "acceptable." That is certainly not the case. In fact, we suggest a 25-milliamp draw is normal and anything that exceeds 100-milliamps indicates an electrical issue that needs to be addressed. Although I have checked the parasitic draw on my Excursion in the past, I'd never photographed that test. I did just that today and it indicated a draw of about 60-milliamps. That's not too bad, considering I have some of the newer electrical accessories, like memory seats, mirrors and radio presets.


Diagnostic ideas in the link.

parasitic draw of 1 02 ma Google Search

Dec 14, 2016 | Cars & Trucks

1 Answer

2007 Chevy Equinox. Performed a parasitic draw test and found it is fuse 57- "battery main 1" causing the draw. What do I do to fix this?


I would start with a test of the alternator diodes if you have not done this yet. Otherwise, sounds like a stuck relay, which sometimes can be found by carefully touching each relay to find the one that is warm or hot while everything is off. Other possibles are a glove box light staying on when shut.

Jan 02, 2015 | 2007 Chevrolet Equinox

1 Answer

2001 Lincoln Navigator Parasitic Draw


300 ma. draw, should not kill battery over night if battery in decent shape.

Nov 23, 2013 | 2001 Lincoln Navigator

2 Answers

Battery dead


Most likely NOT the starter.You have what's called excessive parasitic load.I like to see less than 50 mA load with everything turned off.To see how much load there is,the easiest method is to install a battery cut-off knob on the positive battery terminal,and clamp an ammeter between the battery post side and the cable side.The disconnect switch allows you to power up the vehicle and connect the meter,then open the switch after any current spikes from connecting the battery have subsided.This will prevent blowing the meter or its fuses.You can then look at the amount of parasitic load,and remove fuses until the excessive amount disappears.I would guess a 2 day window for killing the battery would be around 750 milliamps-possibly a single small bulb staying on,like the one on a vanity mirror in the sunvisor,or a glovebox light.

Jan 27, 2013 | 2002 Mitsubishi Galant

3 Answers

Something pulling battery down on 1990 olds 98


You may need to test for a parasitic power drain, for example a horn switch that is stuck closed causing the horn relay switch to stay on continuously even if the wire was unplugged from the horn.

You will need multimeter to test for a parasitic power drain.

1. With the key off, disconnect the negative battery cable.
2. Connect the black multimeter test lead to the negative battery post, connect the red test lead to the negative battery cable.
3. With the meter set to the DC milli-amps scale note the current draw displayed. If it is over 20 mA, there is likely something drawing power that shouldn't be.
4. Leaving the meter connected have an assistant pull fuses one at a time (replacing them before pulling the next) until the meter reading drops. The circuit that this fuse powers is where the problem most likely is.

Mar 21, 2011 | 1990 Oldsmobile Ninety Eight

1 Answer

If van is not driven for few weeks it would not start and the battery be drained completely, jump starting it still did not help but caused mufler to blew.


to check for a parasitic drain, you will need a multimeter. with battery fully charged, remove negative cable from battery. set meter to 300mA and put negative lead on the battery's negative post. put positive lead on vehicle's negative cable and check meter reading. usually, there's an initial draw for a short time (1 or 2 seconds) for the vehicle'ssecurity system, relays, etc. after that, it should only pull 30-40 mA or so, for the digital clock, radio settings, etc. if you're seeing higher numbers, try removing the main fuses (under hood fuse box) one-by-one to see where the problem is. it's also possible that a diode has gone bad in your alternator, which will draw current when the vehicle isn't running. you can check this by disconnecting the alternator's electrical connector to see if you notice a difference on the meter.

Feb 05, 2010 | 1996 GMC Savana

1 Answer

2002 pathfinder killing the battery for no reason. Sometimes overnight others it takes a couple days. Replaced batt. and alt. but problem still exsists. Ive already checked each circut by pulling fuses for...


to check for a parasitic battery drain, you will need a multimeter. set it on the 300 mA setting then remove the negative battery cable on the vehicle. put the multimeter's negative lead on the battery post and the positive lead on the vehicle's negative cable. the meter will tell you how many amps are being drawn. usually, there's a temporary spike (a second or two) for the vehicle's security system, relays, etc. after that, you should only see a draw of approximately 30-40 mA, which is the digital clock, memory settings on the radio, etc. if you're seeing a larger draw, you can begin removing main fuses in the fuse box under the hood to see where the draw is coming from. it's also possible that you may have a bad diode in the alternator, which would cause the alternator to draw current away from the battery when the engine is not running.

Jan 28, 2010 | 1995 Nissan Pathfinder

1 Answer

Parasitic current drawn on battery on bmw 530 d tourer 1999


put an ammeter in SERIES with one of the battery cables. pull each fuse and take a reading. when it goes down to the correct draw...whatever that is, that would be the circuit with the excess draw.

Power seat, horn, alarm, anything powered without the key is suspect.

Dec 03, 2009 | 2001 BMW 5 Series

3 Answers

My sister has a Pontiac Sunfire. I believe the year is 2005. Well she's having problems that every morning a car needs a to boost her vehicle. The battery and alternator have been replaced. We can't seem...


What you are describing is called a "Parasitic Drain"

In automotive terms, a parasitic drain is an electrical load that draws current from the battery when the ignition is turned off. Some devices, such as the PCM and the radio memory are intended to draw a very small amount continuously. These draws are measured in milliamps (mA).

An abnormal parasitic drain could be something like a glovebox lamp, lighted sunshade mirror, aftermarket accessory, or luggage compartment light that remains on but undetected. Or an electronic component may malfunction and cause a parasitic drain that is larger than normal specification.

The recommendation for maximum parasitic drain is around 30 mA (0.030 amp). A typical drain today actually falls into the 7-12 mA range, even though some vehicles do approach the maximum.

Unfortunately, many mechanics do not know how to properly test for and/or track down a parasitic drain. You need to find a shop that has a technician that is familiar with this type of problem. The best way is to ask them specificly if they know how to diagnose a parasitic drain. If they hesitate, or act like they don't know what you are talking about, move on to the next shop.

Oct 31, 2009 | 2005 Pontiac Sunfire

1 Answer

98 bmw


You have a direct current drain while the car is parked....a short or stuck relay or something is not shutting down when you turn the car off. This is called a key off parasitic electrical drain.You can test for this with an amp meter.
If everything is normal, you will read less than 35 milliamps, or .035 amps.(one hour after car is turned off) If the current drain is higher than that, you need to find out what is draining your batteries: You can start by pulling fuses until the load goes away. If that doesn't reduce the draw, you need to look for a wire that is corroded or frayed.
Good luck and happy hunting...

May 23, 2009 | 2001 BMW 330

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