How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask sprinkles08 Your Own Question

sprinkles08
sprinkles08, ASE Certified Technician
Category: Car
Satisfied Customers: 16444
Experience:  ASE Master and Advanced level certified. Factory trained with 14 years dealership experience
Type Your Car Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

I have a 2010 VW Routan. It was sitting for about 3 and half

Resolved Question:

I have a 2010 VW Routan. It was sitting for about 3 and half weeks and now battery is completely dead. After jumping it, it dying overnight, replacing the battery, dying overnight, testing the battery and alternator to find nothing, and doing a parasitic draw test and removing two culprit fuses, it still reads .75 on my meter with no other fuses showing as bad. I am lost as what to check now. Any suggestions would be great. Thanks.
Submitted: 1 year ago.
Category: Car
Expert:  sprinkles08 replied 1 year ago.
Hello and welcome to JustAnswer!

I see your question has been up for an extended time without a response. Do you still need help?


Customer: replied 1 year ago.

Yes, I figured it would take a day or two to receive a response. I have not had any response and still need assistance.

Expert:  sprinkles08 replied 1 year ago.
Draw testing has to be done pretty specifically on modern vehicles. If you did the testing before the communication bus timed out then all modules will still be awake and drawing power.

Start with all doors closed and if you have a hood switch make sure it's pressed down as if the hood was closed. Leave the battery connected, press the lock button on the key fob.

Wait about ten minutes to ensure the communication bus and all modules are asleep.

Set your meter to the 20v DC scale and open the fuse box. All blade type fuses have two open terminals on top for voltmeter or test light use. One at a time at each fuse touch one meter lead to each open terminal on each fuse and read the meter. If you see any reading besides 0.00v testing this way that means there is current flowing through that fuse.

Go through all fuses this way and note which ones if any have current flowing through them, and then from there you can isolate components on that circuit. Make sure when testing that no doors are opened and no fuses are removed, removing fuses will wake modules up and skew your test results making it look like there is a draw when there isn't.

It's also possible that the alternator could be causing the draw if you find no other problems. To test this you would need to disconnect the battery and set your meter up inline to measure amps. A jumper wire would need to be placed between the battery terminal and post, allow the vehicle to go to sleep and then remove the jumper wire. After verifying there is a draw then disconnect the alternator field connector and see if it goes away. If it does then the alternator will need to be replaced. When testing with the meter in series at the battery you're looking for no more than .3-.4 amps.
Customer: replied 1 year ago.

I am a little confused on the alternator testing. Can you be a little more specific with the process. Thanks.

Expert:  sprinkles08 replied 1 year ago.
Set the meter up in series between the battery post and a disconnected cable. Set up a jumper wire between the two also. After 5-10 minutes remove the jumper wire, this allows enough current flow to let the modules time out. This would be the first step any time you're testing how much draw you have.

After verifying there is a draw (more than .4 at rest) unplug the two wire alternator field connector and see if the draw goes away. If it does then the problem is internal in the alternator.
Customer: replied 1 year ago.

So I found that there was nothing wrong with the fuses, alternator, or battery. I had my bumper repaired the day before I asked this question and after they repaired the small dent in the bumper, the vehicle has not died once. Could it have to do with the alarm system needing to have been reset? They did run their diagnostic machine and found nothing wrong. It is strange if you ask me.

Expert:  sprinkles08 replied 1 year ago.
Unless you have an aftermarket alarm of some sort there wouldn't be anything that needed any kind of reset.

Sometimes battery draws can be intermittent, it may come back. If a module is locked up and causing the draw pulling a fuse will often reset it, so if fuses were pulled to try to test for a draw then that may be why it's gone now. If you do start having problems again then you'll want to check for voltage drop across the fuses like I described and see if you can find the circuit that way rather than removing any fuses.


sprinkles08, ASE Certified Technician
Category: Car
Satisfied Customers: 16444
Experience: ASE Master and Advanced level certified. Factory trained with 14 years dealership experience
sprinkles08 and 7 other Car Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
< Last | Next >
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
  • http://ww2.justanswer.com/uploads/TE/TedG/2012-6-15_14759_avaLarge.64x64.jpg Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    1596
    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    1311
    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Tech

    Satisfied Customers:

    2367
    ASE Master Tech advanced level specialist
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1906
    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    942
    12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
  • http://ww2.justanswer.com/uploads/ST/Steve7654/2012-6-5_215929_japic800x660.64x64.jpg Steve's Avatar

    Steve

    Auto Service Technician

    Satisfied Customers:

    1980
    25+ yrs experience as a professional working technician; ASE L1 master technician