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 Mike S. Your Own Question

Mike S.
Mike S., ASE Certified Technician
Category: Cadillac
Satisfied Customers: 4994
Experience:  ASE certified
Type Your Cadillac Question Here...
Mike S. is online now
A new question is answered every 9 seconds

I have a 98 Cadillac Deville that has a slow battery drain

Customer Question

I have a 98 Cadillac Deville that has a slow battery drain on the Body 3 circuit. Based on the schematics, there are 2 relays in that circuit. Can you tell me where these are located? If I leave the car sit for several days the battery will be drained. I have unplugged all circuits and put an ampmeter on the body 3 circuit and see that it fluctuates from what specs are calling. I just suspect it is the relays and want to replace them to see if this stops my drain. Thanks.
Submitted: 4 years ago.
Category: Cadillac
Expert:  Mike S. replied 4 years ago.
There is a micro relay center in the trunk. For that diagram, click here and here.
Mike S., ASE Certified Technician
Category: Cadillac
Satisfied Customers: 4994
Experience: ASE certified
Mike S. and other Cadillac Specialists are ready to help you
Expert:  Mike S. replied 4 years ago.

For the Trunk compartment fuse panel locations—1996–98 Deville, click here.

There are three fuse blocks in most late model Cadillacs: the engine compartment fuse block, the MaxiFuse relay center and the rear compartment fuse block.All Devilles and Fleetwoods are equipped with a fuse block located under the left-hand side of the instrument panel. In addition, 1991–93 Deville and Fleetwood are equipped with a fuse block located in the rear of the engine compartment.

Customer: replied 4 years ago.
Is there a particular one that has been a problem historically? I have the back seat out and right now trying to take amp readings on body3 circuit. Of course it isn't doing anything right now.
Expert:  Mike S. replied 4 years ago.
This is tsb explains was is allowed as a Battery Parasitic Drain, as a rule of thumb, maximum parasitic drain is around 30 mA (0.030 amp). Click here. What I would do is with the fuse in look for anything on that circuit that doesn't work and find out why, possibly a short to ground on the wire or look for anything remaining on such as a bulb. Anything with a memory will draw a small amount, such as radio presets, the ecm memory and a clock.
Customer: replied 4 years ago.
Thanks. I took all 3 grounds loose back there and made sure that they were clean. There were a few relays loose from their mounts so I got them back as well. So far I can't seem to get it to draw extra again. I'll see if it still does it. Thanks for your help.
Expert:  Mike S. replied 4 years ago.
ok

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:

 
 
 
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Last | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX
 
 
 

Meet The Experts:

 
 
 
  • Dave Nova

    Cadillac Technician

    Satisfied Customers:

    1469
    ASE Master Certification. GM World Class Certification
< Last | Next >
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Cadillac Technician

    Satisfied Customers:

    1469
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/JF/JFN1/2011-2-26_33039_180754101501129867381533152761315265045893127711n.64x64.jpg Jerry Newton's Avatar

    Jerry Newton

    Cadillac Technician

    Satisfied Customers:

    1181
    ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
  • http://ww2.justanswer.com/uploads/PE/peterpete190/2012-2-24_1274_20120215135406.64x64.jpg Pete's Avatar

    Pete

    Cadillac Technician

    Satisfied Customers:

    1133
    15 years Cadillac experience as a technician.
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    ASE Certified Technician

    Satisfied Customers:

    941
    ASE CERTIFICATIONS A1-A8 & L1 / 40 YEARS AUTOMOTIVE EXPERIENCE
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    595
    ASE Master Tech 15+ Years
  • http://ww2.justanswer.com/uploads/MO/molurch/2012-6-6_214526_500.64x64.png Don 'Mo Lurch''s Avatar

    Don 'Mo Lurch'

    Cadillac Technician

    Satisfied Customers:

    462
    GM, Cadillac Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.
  • http://ww2.justanswer.com/uploads/tsmodie/2009-6-10_144056_tim.jpg Tim Mohr's Avatar

    Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    385
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL