Question about Volkswagen Cars & Trucks

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Spoiler, would it effect the car if we took out the two fuses to it? We think the spoiler isn't closing every time and causing the battery to drain.

We have gotten new battery, etc. and something is draining the power.. When we jump it we hear the spoiler come down on the times it won't start.

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  • Jim N Sue Jacobs
    Jim N Sue Jacobs Mar 30, 2014

    It's a 2002 turbo VW beetle.

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  • Volkswagen Master
  • 3,679 Answers

Have you checked that alternator is charging correctly? this would be my first step for new battery going flat

Posted on Mar 30, 2014

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1619 Answers

SOURCE: battery on mercedes A140 drains. I drove the car

aftermarket stereo? dome lights? car alarm? Use a multimeter and see what fuse has power draw when car is off.

Posted on Jun 15, 2009

motor1258
  • 6674 Answers

SOURCE: Brand new battery is dead with nothing left on. Bad ground?

Remove positive battery terminal from battery & put a 12 volt test light in line between cable & battery post. As long as 12 volt light is illuminated, you have a draw. Start pulling & re-installing fuses, one at a time,until you see it dim or go out. If it goes out, you found your draw. If it dims, slight draw, such as radio memory etc. if all else fails, make sure you know where they all go, then pull them all, and start putting back one at a time. When light comes on bright, you found the circuit causing the draw.

Posted on Jul 03, 2009

Mr BrokRench
  • 1623 Answers

SOURCE: 2000 Navigator - something draining on battery - goes dead

Hellokrissypoo4...Your navigator has what is known as a parasitic battery drain...meaning, something in the vehicles system is not turning off...here is the way i test for this, you will need a digitial multimeter to perform this test...when doing this test make sure that the dome light, under hood light, trunk light, etc. are OFF.

  1. Remove the negative side battery cable from the negative battery terminal.
  2. Attach an ammeter(this measures amperage) between the negative cable and the negative battery post. wait a few seconds to several minutes for the car to go into sleep mode. i.e. when you make the contact with the test light the cars computer systems "wake up" after a bit of time they will go to "sleep".
  3. If the ammeter is reading over 25-50 milliamps, something is using too much battery power.
  4. Go to the fuse panel(s) and remove fuses, one at a time. Pull the main fuses (higher amp ratings)last. Be sure to observe the ammeter after pulling each fuse.
  5. Watch for the ammeter to drop to acceptable drain. The fuse that reduces the drain is the draw. Consult the owners' manual or service manual to find what circuits are on that fuse.
  6. Check each device (circuit) on that fuse. Stop each lamp, heater, etc. to find the drain.
  7. Repeat steps 1&2 to test your repair. The ammeter will tell you exact numbers

    NOTE:
  8. Some after-market alarm systems may make this test too long or loud to be worth the effort. If that's the case, seek professional help.
  9. In more and more models made after 2003 disconnecting the battery will reset the PCM requiring the modules to relearn. In certain cases this requires a factory scan tool. It is best to take such cars to either the dealer or a professional in auto electrical systems.
  10. Be careful working around the battery in a car
Good luck krissy..i hope this helps..please rate me a fixya.

Posted on Jul 22, 2009

Sean80000
  • 1867 Answers

SOURCE: 87 f250 drained brand new battery

I would first have the alternator checked by an auto electrician to ensure it is working correctly and is providing the correct volume of current. It may be faulty and when driving you will be drawing battery power instead of power from the alternator to run the electrics. This will drain the battery.

Alternators do not last forever and if you are still running the original unit it is likely to be on it's last legs and you will need a replacement unit.

Posted on Nov 30, 2009

  • 154 Answers

SOURCE: 2006 Toyota Sienna Battery Drain. Side power

the sliding door is probablly draining the battery,, have door checked.. make sure tracks are clean and hinges are not binding

Posted on Dec 12, 2009

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95cherokee limited 4.0 new batttery an altonater will not hold chareg on batttery


there must be a drain on the battery when ignition of , check for any internal lights that are one when ignition off , the usual ones overlooked are in the glove/map box , the luggage area even under hood on some vehicles, if nothing found get an auto electrician to do a drop down test , this will confirm if threr is a drain and should help find it keep me posted if you wish

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drain is hard to find it could be a short or a component is staying on. you need an amp meter and hook it up between your battery negative terminal and the negative battery cable.turn the key off and check how many amp is the drain make sure all the lights and doors are closed, dont crank the car with amp meter on it will burn the meter. take each fuse out at a time which ever fuse drops the amps down by pulling it out is causing the drain. find what that fuse is for. check that component and the wiring on it for any shorts.

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Courtesy lights stay on after the door has been closed on my 98 LeSabre. What is the cause of that and can I remove the fuse to get the lights off so the battery isn't drained?


Hi Dennis,

Your courtesy lights are controlled by your Body Control Module (BCM). Normal operation is for the courtesy lights to stay on for 2-3 minutes after the door is closed, then turn off.If they stay on longer than about 3 minutes, then there are several possible causes:

1. You may have the "courtesy lamp override switch" in the overide position in the dimmer control on the dash.

2. you may have a door that is not completely closed. You need to check ALL of them.

3. You could have a defective door switch or dimmer control switch

4. you could have a short to ground in one of the door control switch circuits, causing the BCM to "think" that there is a door open.

The CORRECT way to fix this would be to scan your BCM for fault codes and also read the BCM data to find out if it is showing one of the doors as being open when they clearly are not, so you will know which door is causing the problem.

Removing the courtesy lamp fuse will NOT completely fix the battery drain problem if these circuits are shorted or malfunctioning because the BCM will STILL be "trying" to turn these lights on and this will also cause an excessive draw on your battery. However, removing the 15 Amp fuse marked "CTSY LMP/MIRROR" located in the instrument panel fuse block will get the lights turned off and at least slow down how fast your battery is draining.

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I have a slow drain on the battery on a 1996 buick Century, I found if i take out the CSTY fuse the drain stops, Now how do I go about finding the cause of the short?/worn wiring that is slowly draining...


Hi, CSTY is abbrevation for courtesy lamps. They can be interrior lamps in the dome, footwell, inside headspace front and rear, map lights, glove box , door jams/panels , under hood and trunk. First verify that all your lights are going off when the doors are closed and key is off. For trunk and under hood courtesy light, use the push switch to verify they do turn off. (I've had a few under hood lights short out and do that) Next would be to remove bulbs one at a time and monitor your battery. (Painstaking, but effective) other than that, you have a short somewhere, lights in the bottom corners of the doors can get moisture and usually corrode first. Good Luck! Mike

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TO CHECK FOR A BATTERY DRAIN. TURN OFF EVERY SWITCH IN THE CAR. CLOSE THE GLOVE COMPARTMENT. MAKE SURE THE LITE IN THERE IS GOING OUT. OPEN THE HOOD CLOSE ALL OF THE DOORS. MAKE SURE ALL OF THE COURTESY LIGHTS ARE GOING OUT. DISCONNECT ANY UNDER HOOD LIGHTS. DISCONNECT NEG. BATTERY CABLE. USE A 12 VOLT TEST LIGHT, FASTEN ONE END TO THE NEGATIVE BATTERY TERMINAL, FASTEN THE OTHER END TO A METAL PART OF THE MOTOR. IF THE LIGHT COMES ON, THERE IS A BATTERY DRAIN. NO LIGHT, NO DRAIN. IF THE LIGHT IS ON, PULL EACH FUSE, BIG & SMALL, ONE AT A TIME, OUT OF THE FUSEBOX THAT IS NEAR THE BATTERY. WHICHEVER FUSE MAKES THE LIGHT GO OUT IS CAUSING THE DRAIN. IF THE LIGHT STAYS ON THROUGHOUT THE FUSE PULLING, DISCONNECT THE ALTERNATOR. IF THERE IS SOMETHING WRONG IN THE ALTERNATOR, IT CAN DRAIN THE BATTERY WHILE SITTING STILL, EVEN THOUGH IT IS CHARGING THE BATTERY WHILE YOU ARE DRIVING. GOOD LUCK

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TO CHECK FOR A BATTERY DRAIN. TURN OFF EVERY SWITCH IN THE CAR. CLOSE THE GLOVE COMPARTMENT. MAKE SURE THE LITE IN THERE IS GOING OUT. OPEN THE HOOD CLOSE ALL OF THE DOORS. MAKE SURE ALL OF THE COURTESY LIGHTS ARE GOING OUT. DISCONNECT ANY UNDER HOOD LIGHTS. DISCONNECT NEG. BATTERY CABLE. USE A 12 VOLT TEST LIGHT, FASTEN ONE END TO THE NEGATIVE BATTERY TERMINAL, FASTEN THE OTHER END TO A METAL PART OF THE MOTOR. IF THE LIGHT COMES ON, THERE IS A BATTERY DRAIN. NO LIGHT, NO DRAIN. IF THE LIGHT IS ON, PULL EACH FUSE, BIG & SMALL, ONE AT A TIME, OUT OF THE FUSEBOX THAT IS NEAR THE BATTERY. WHICHEVER FUSE MAKES THE LIGHT GO OUT IS CAUSING THE DRAIN. IF THE LIGHT STAYS ON THROUGHOUT THE FUSE PULLING, DISCONNECT THE ALTERNATOR. IF THERE IS SOMETHING WRONG IN THE ALTERNATOR, IT CAN DRAIN THE BATTERY WHILE SITTING STILL, EVEN THOUGH IT IS CHARGING THE BATTERY WHILE YOU ARE DRIVING. GOOD LUCK

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