Question about 2002 Volkswagen Passat

1 Answer

2001 volkswagan passat V6 manuel, Battery will not stay charged, replaced battery and alternator, still dies. Mechanic says "body control Module out" continues small amount of power to dash to drain battery. Mechanic reports that they can replace but not reprogram.

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 174 Answers

U can measure the amps drained with amp meater.Anything exceding small amounts (0.05!?)must point shortcircuited wires may not blew the fuses,just increase the consume,radio muted on,other consumers (trunk light ,lighter,door danger lamps and so on,etc)Must track the problem before body control module.Many alarms drain large amounts of energy (2-3 days get a older battery out).A back up wire to radio also drain power,blinking leds and others.

Posted on Oct 22, 2013

  • trsrhddn Jan 18, 2015

    take it to a mechanic that only works on vw's or a dealer

×

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 1 Answer

SOURCE: 99 volkswagen passat starts, then stalls, won't keep idle

I am having a similar problem on a 2003 Volkswagon Passat 1.8L 4 cylinder manual engine. My batter (after 10 years of service) died about a month ago. When the engine is cold and I start it up the engine (if I do not carefully add gas to rev the engine) will idle at around 200 to 400 RPM and then stall. The problem does not occur after the engine has been going for more than about 90 seconds. No check engine light is on. Ideas anyone?

Posted on Oct 05, 2012

  • 120 Answers

SOURCE: Volkswagen Passat 2003 battery replacement memory saver

no go to advance auto parts and get a memo. saver that a 9volt hooks to not expensive

Posted on Feb 12, 2009

landsend
  • 1066 Answers

SOURCE: electric fan runs constantly 2001 passat

your fan rely is stuck...there are two of them and need replacement.  I believe they are in the fuse box.  You can tell which is bad by swapping them.   Good luck

Posted on Apr 24, 2009

Mr BrokRench
  • 1623 Answers

SOURCE: airbag light stays on

This is common on the beetle. More than likely it's diagnostic trouble code 00591 E24.
It will need to be reset with vagcom or vcds software. A few known trouble areas on the beetle that trigger this light are the seat belt buckles and the wire connectors under the seat. I've seen the connectors get loose and not make contact, and in one case the wires severed from sliding the seat. You might check this before you clear and reset.
Good luck...i hope this helps.

Posted on May 12, 2009

  • 27 Answers

SOURCE: 02 VW Passat V6 GLX My

your alternator is bad still don't buy reconditioned buy a new one you have better luck

Posted on Jul 26, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My 2001 PT Cruiser was driving fine then the check engine flashed then stayed on. Within 24 hours while driving it lost power and died. Jumped it got about a mile it died again. We have replaced the...


I would want to know what the trouble codes are in the computer since the check engine light is on.
Those codes would help you or a mechanic know where to start checking.
If the alternator is not charging the battery, and you know for a fact the battery and alternator are ok, the problem could be a fuse or fuseable link wire, or the computer.

Feb 18, 2013 | 2001 Chrysler PT Cruiser

1 Answer

2005 cadillac deville wont stay running when you turn on headlights or blinker


alternator may be problem can check by taking off positive battery cable from battery if it dies then it is the alternator or any parts house can check

Sep 19, 2012 | 2005 Cadillac Deville

1 Answer

Dome light started staying on, then the headlights dimmed and car died. 99 Pontiac sunfire


It sounds like charging system failure to me. Most likely a bad alternator. The entire charging system needs to be checked including the battery, the battery cables and connections and the alternator and alternator circuits.

Just to help you understand.....the reason your dome lamps started coming on is because they are controlled by the Body Control Module (BCM) (AKA Body Computer) The body computer did not have enough power going to it to function properly and this is what caused your dome lamps to come on (Computers do all kinds of WIERD things when they start getting delirious from malnutrition).
Then as the charging system voltage got even lower, this is what caused the headlamps to go dim. Finally, the Powertrain Control Module (PCM) (AKA Engine Computer) did not have enough power to function proerly and this caused your engine to shut down.

Diagnose and repair the charging system problem and all should start working properly again.

Nov 29, 2011 | 1999 Pontiac Sunfire

1 Answer

I have a 2001 galant v6 and my battery isn't being


The altinator is missing ground, any time you remove the battery and the engine dies, that only means that the altinator is not charging, there has to be a fuse for charging systme.

Sep 19, 2011 | 2001 Mitsubishi Galant

1 Answer

2001 Mazda MPV, have replaced Alternator, but battery light keeps coming on. When negative terminal wire is removed the engine dies, but using meter the voltage output is around 13.85-14. Checked all...


Removing either battery cable, thereby taking the battery out of the circuit, with the engine running can cause the alternator to charge full tilt and destroy sensitive micro volt (computer controlled) components; and I've seen wiring harnesses go up in flame from it. You may have a module problem.

Jun 18, 2011 | 2001 Mazda MPV

3 Answers

I replaced the battery in my 01 volkswagon passat, it ran for a while then the engine slowly die, instrumental lights dim and the car cut off. It started again after a jukp but, continued the same process....


The alternator is shot, The car will run on a new battery for about 20 mins, then it fizzles out. The alternator contains the regulator, You can take it and get it checked, but I'm sure that is the problem, get your battery charged up while you do the alternator,and keep an eye on the charge light. Make sure it is charging, just because it is new doesn't mean it is good. Hope this helps.

Oct 07, 2010 | 2001 Volkswagen Passat

2 Answers

All the light go on then it dies and I'll turn it


Hello... It is possible you have a loss ground or connector that is part of the circuit for the Body Control Module (BCM)...

Good Luck....

Jul 30, 2010 | 2001 Chevrolet Blazer

1 Answer

I have a bmw 2001 330ci convertible which had the alternator replaced twice in a month and half.the mechanic is claiming that there is an electrical problem and he cannot figure it out and to go to the bmw...


it seems like something is draining your battery while the car sits overnight. causing the battery to get weaker and weaker putting stress on the alternator making it fail prematurely. the dealership will do a paracidic drain test where they'll find out what is draining your battery while your car sits overnight. it could be a bad module somewhere that's staying on when it shouldn't be.

Feb 17, 2010 | 2002 BMW 5 Series

Not finding what you are looking for?
2002 Volkswagen Passat Logo

131 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22258 Answers

yadayada
yadayada

Level 3 Expert

77169 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8725 Answers

Are you a Volkswagen Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...