VW Passat B6 (2006) power drain issue

[makadam]

I have Passat 2006 and I have problem with battery. If the car is idle more than 2-3 days I can't start car, only some clicking noise from engine. I replaced battery with another one from different car but after only one night same problem. It is obvious that is problem with the car not a battery! What is standing drain normal in Amps, 0.1A or less? .
Some solution for this problem?

[m3vuv]

try leaving it with the battery -ve lead disconnected for a day or two and see if it is still the same.

[makadam]

try leaving it with the battery -ve lead disconnected for a day or two and see if it is still the same.

I don't think that will solve this problem. This problem is Parasite current flow by some electronic device from a car, but which one. I think this is common problem with all VW passat from 2005-2008

[mtechno]

Have you been able to measure how much parasitic drain you have! Is it constant or intermittent? Common problem with can bus is when one module fails it pulls down the whole system. The last time I had a problem like this was on 07 audi a4 I connected ammeter inline on bat neg to chassis earth disconnected each module ( most of them under floor & under seats ) until heavy draw stopped. The module turned out to be telephone bluetooth it had internal short which pulled down battery voltage until it dropped sufficiently to set alarm off, it was a few years ago so I had nothing at that time, that could interrogate body system.

[genius76]

I'm sure you've checked alternator charging voltage?
Negative broadcast to body?
You are removing the fuse a couple different each time, and measured the voltage/amp.?
CD, clock, alarm does not activate, about 0.3-0.38a

[genius76]

Sory 0.03 a :canabis:

[teuton]

on any car you don't wanna see more than 50 ma maximum drain. around 30 ma is a pretty good figure but on newer cars and their multitude of modules...
actually it's better to measure voltage drop over fuse than pulling fuses and installing them back as this will cause some modules to wake up and you'll have to wait until it goes to sleep again. This will take eternities if you have to check let's say 30 fuses.

BR.

[Meat-Head]

it's better to measure voltage drop over fuse than pulling fuses
BR.


ON TOPIC:-

Let's say it's the radio drawing 50 MA when stood.

The battery has just been took off charge, so it's 12.75 volts.

The cigar lighter is the next fuse - nothing plugged in - after the radio fuse, what is the voltage reading on each fuse?

I have been here 13,534 posts and never seen that comment EVER.

Thanks.

[m3vuv]

voltage drop over a fuse??,new one on me, if the fuse was resistive i could see it making sense to measure the current accros it but voltage drop!,lost me!

[mtechno]

If anyone wants to check can system effectively this shows you how you do it!

http://www.esd-electronics-usa.com/Shared/Library/CAN-Troubleshooting-Guide.pdf

[makadam]

on any car you don't wanna see more than 50 ma maximum drain. around 30 ma is a pretty good figure but on newer cars and their multitude of modules...
actually it's better to measure voltage drop over fuse than pulling fuses and installing them back as this will cause some modules to wake up and you'll have to wait until it goes to sleep again. This will take eternities if you have to check let's say 30 fuses.

BR.

So, if I understand you I need to mesaure voltage between two contacts on fuse?

[vdubman1]

So, if I understand you I need to mesaure voltage between two contacts on fuse?
Please do NOT take any fuses out

DO this open all doors and hood.trip the latches and then arm the alarm.

then follow this tech bulletin

you will find the draw this way


Vdubman1

Master VW tech

[makadam]

I just measure current drain with ampermeter in series with negative battery terminal and it is 1.1 A with all doors and hood closed, and current is not constant it is between 1-1.5A. I just read previous post and I will use procedure measuring voltage drop between fuse terminals. Also can someone give me passat B6 user manual in pdf because mine is german language, so it will be difficult to find fuse function?

[Youneselm]

Bad gateway!
change gateway to recent version.

[daniersms]

Dont forget to check for a TRACKING device which can draw more current than usual when the back-up battery gets flat or old-----Removed a lot of those

[ghostridersa]

I had a problem like this which was brought to me buy the dealer, a BMW X5 4.8i. Would drain the battery within 8 hours. Turned out to be a bad tracker system hidden high up under the dash. Cut it out and vehicle was perfect.


Dont forget to check for a TRACKING device which can draw more current than usual when the back-up battery gets flat or old-----Removed a lot of those

[odtmod]

One of the modules does not "goes to sleep".
Set an amp meter inline with the negative battery post in a way that you can disconnect it WITHOUT breaking the electrical circuit. now shut all doors, key out of the ignition and let the car sit for 1/2 hour or so then check battery draw.
it should be below 0.050 Amp or so. If it is higher, start pulling fuses 1 at a time while watching your meter until you know what circuit is drawing. at this point, check electrical diagrams for power distribution circuits branching off the that fuse. continue by disconnecting 1 at a time, components that this circuit is feeding power to until you find the one causing the draw.
Keep in mind, every time you break the battery circuit open or open door, turn key etc, you will need to allow that 1/2 hour to allow the systems to fall a sleep again.

[Youneselm]

did someone install a rns510 radio-nav system without coding the gateway?
check first witch version off gateway you have.
maybe version C or D.
You need minimum version E to avoid problems in the future.

[vdubman1]

Bad gateway!
change gateway to recent version.


how about a door module !!!!!???? i bet it is that . need to know with vaspc to see if the bus is waking up!!!

common issue with passat 06-07 usually the front doors!!!

C'mon Man!!!
:heeeelllllooooo:

[smokey08]

I have seen this a few times. Check wires under battery and you will find you problem.

[makadam]

I spent a few hours to find defective part (circuit) which is working when car is off, I use procedure from vdubman1 (http://www.digital-kaos.co.uk/forums/members/118720-vdubman1/) without any success. I find that I hear some clicking noise coming from the passenger side dash board. Ampmeter never goes under 1A with doors and hood closed. I will check what version of gateway I have in the car and as I found it is located behind air condition panel. The car has RNS 300 (radio with navigation) but I dont know if this unit came with the car. I will read all errors produced with VCDS and post here. |This problem really disturb me, so any help will be welcome!

[mtechno]

I posted you the info for testing canbus just look at the diagram, its a very simple process once you get used to using it!

To test it,
1. Turn off all power supplies of the attached CAN nodes.
2. Measure the DC resistance between CAN_H and CAN_L at the middle and ends of
the network (see figure above).
The measured value should be between 50 and 70 S. The measured value should be nearly the same
at each point of the network.
If the value is below 50 S, please make sure that:
- there is no short circuit between CAN_H and CAN_L wiring
- there are not more than two terminating resistors
- the nodes do not have faulty transceivers.
If the value is higher than 70 S, please make sure that:
- there are no open circuits in CAN_H or CAN_L wiring
- your bus system has two terminating resistors (one at each end) and that they are 120 S each.

[vdubman1]

I spent a few hours to find defective part (circuit) which is working when car is off, I use procedure from vdubman1 (http://www.digital-kaos.co.uk/forums/members/118720-vdubman1/) without any success. I find that I hear some clicking noise coming from the passenger side dash board. Ampmeter never goes under 1A with doors and hood closed. I will check what version of gateway I have in the car and as I found it is located behind air condition panel. The car has RNS 300 (radio with navigation) but I dont know if this unit came with the car. I will read all errors produced with VCDS and post here. |This problem really disturb me, so any help will be welcome!
that is not the gateway module !!! that is the comfort control module

do this at the door connections at the a pillars disconnect the drivers and passenger side front doors and see if the drain goes away!!

[teuton]

I,ll leave you "my" voltage drop chart as you'' ll need in future diagnostics,

BR

[makadam]

that is not the gateway module !!! that is the comfort control module

do this at the door connections at the a pillars disconnect the drivers and passenger side front doors and see if the drain goes away!!

I just disconnected driver and passenger door but sitaution is same. 0.8A
After disconnecting RNS 300 (1K0 035 191D) Ampmeter is showing 0.08A. I was thinking that finally I found problem causing battery discarge but when I put a car key and wake all modules, ampemeter again never goes under 0.8A. It is obvious that radio navigation system consumes about 0.6A .
About comfort module (3C0 959 433R) I know that is located behind passenger dash and a clicking noise coming from that location.
About can gateway (3C0 907 530 C) I found that is located behind dashboard, behind radio. Is there a way to test gateway without buying a new? Can gateway troubleshooting guide is not complicated but it is simple diagram I don't know how to test it in reallity with 3C0 907 530 C. Also I noticed that comfort module (3C0 959 433R) is for passat after 2008 mine is 2006 is there a way that this module is not programed well, so it never goes to sleep mode?

[makadam]

Bad gateway!
change gateway to recent version.

About Gateway I don't really know how to test it, my car have 3C0 907 530 C ? What gateway should I install 3C0 907 530 Q or L or E version. Car has radio navigation system RNS 300 and also have Interface box telephone 3C0-035-729-E and car steering wheel is without command buttons on it!

[Youneselm]

last caracter must be higher than "L"
for coding is verry easy.
just look at the old coding and co the new one the same way.
you can use the install. List in VCDS, after switch power for 1 min. job done no morproblems ever!!! ;-)

[makadam]

last caracter must be higher than "L"
for coding is verry easy.
just look at the old coding and co the new one the same way.
you can use the install. List in VCDS, after switch power for 1 min. job done no morproblems ever!!! ;-)

If I understand you "L" is ok right?

[teuton]

If I understand you "L" is ok right?


he says higher than L, so it should be Q from those you mentioned first.

[makadam]

I still didn't find solution for the problem.. Can someone tell me if let say that radio is totally disconected, car will not go in SLEEP mode because can gateway is trying to rechecking the system until it gets a good answer from radio this time? ("Databus in Single Wire") or I need to recode unit (no radio installed)

[makadam]

Any other solution?

I just bought dc clamp meter so I will look what module does not go in sleep mode! I didn't mentioned that I have only 2 faults with vcds. One is thermal protection which is activated in all four doors, and second fault is alarm horh. I just want to ask let say that alarm horn is faulty, can i just disconect alarm horn H12 and leave plug without alarm horn. If I do this will computers will go to sleep because it is open circuit in ccm module, (allarm horn is deatached).


01134 - Alarm Horn (H12)
004 - No Signal/Communication
01034 - Electric Window Thermal Protection Active; Driver
01035 - Electric Window Thermal Protection Active; Passenger
01036 - Electric Window Thermal Protection Active; Rear Left
01037 - Electric Window Thermal Protection Active; Rear Right

:stupido2:

[Meat-Head]

try resinking the vindows first

think you best go back and read this thread again
(press the thanks botton a few times if you like)

i think the answer has be mentioned already

[makadam]

try resinking the vindows first

think you best go back and read this thread again
(press the thanks botton a few times if you like)

i think the answer has be mentioned already


Sorry what u mean "resinking"?

I already read many times this thread I spent a lot of time to find this stupid problem in my car without any success. I didn.t mentioned that before 2 days drivers door was registered Open even it was closed. I cant even lock my car with remote! After big bump in hole on the road suddenly car loc itself and MFD is showing that all doors is closed! I also open alarm horn clean PCB plate check battery and return back in position behind front right wheel!

[Meat-Head]

wind the windows up and down to they autoclose and open

then see if your fault has gone with fuse active.

suggest you disconnet battery unplug both front doors, battery on, start the indian stop the indian, go fkuc a tree or something for 1/2 hour see what your meter says

[makadam]

Fuse never blow btw, and after errors are cleaned they appear one hour, after car is locked. Sometimes four blinkers are on, whitout any reason and alarm horn does not make sound (i have error that circuit is open). Maybe ccm module is problem ???

Send from Samsung Galaxy S2

[genius76]

There are step by step vw audi elsa online diagnostic

great for all

Body self-diagnosis - ElsaWeb (http://elsaweb.spaghetticoder.org/doc/V.en-GB.3B-KM-KME/597555/2)

[Diagnosticated]

There are step by step vw audi elsa online diagnostic

great for all

Body self-diagnosis - ElsaWeb (http://elsaweb.spaghetticoder.org/doc/V.en-GB.3B-KM-KME/597555/2)

That is for old B5 models. makadam has a B6 can-bus model.

[genius76]

Sorry but I am innocent of that in your head plasticine

If something wrong for you upload anything better and help him

http://foto.terpe.lt/inkelti/20130117/i0_untitled.JPG

[Desertstorm1]

With that level of current flow I would say that for some reason one of the modules is not going to sleep. The problem with testing as you are is that the car is unlocked and you probably have the doors open, the modules will be awake. Usually to get them to go dormant you need to lock the car.
It's a thankless task trying to track down these kind of issues on a modern car. For circuit diagrams and loads of info you need Elsa Win.

[Ashraf6119]

Hi

Very common on Vag Cars Alternator to cause Battery Drain.........

Disconnect the Alternator Big Red Positive Wire from battery you will see your voltage drain..........

You can also try living vehicle disconnected alternator wire for 2 days and try to start the car.....

[makadam]

I think I found problem for my car which is drain battery. Yesterday I notice that all four blinkers was on, alarm horn was not activated but it is faulty (VCDS says it is open circuit) and driver door was detected open in MFD. After I deactivated alarm with remote, MFD still showing open left door even it was closed and then suddenly after 2-3 min. in MFD door was closed. Car is trying to go in sleep mode, current clamp is showing value between 0.7 and 0.1 relay click behind passenger dash and then amp goes again in 0.7A. But even I disconected driver door cable situation is same. If car is not locked (all doors closed) current is 0.6A and no relay clicking no current fluctuation.
I want to know does CAN Gatewey will shut off all modules even some module is missing (Lets say driver door or radio) or will try to connect again (loop).

[Diagnosticated]

0.7 amps is the can awake current draw. It will not sleep with a faulty module and you cannot disconnect the module to find the fault. The gateway will look for the disconnected module. You can use vcds to tell the central electrics and can gateway that a module is not fitted.

[makadam]

0.7 amps is the can awake current draw. It will not sleep with a faulty module and you cannot disconnect the module to find the fault. The gateway will look for the disconnected module. You can use vcds to tell the central electrics and can gateway that a module is not fitted.

So you are sugesting me to disable alarm horn with vcds using long code. There is a lot of option in comfort module. What is right for disabling alarm?

Send from Samsung Galaxy S2

[makadam]

Does the car will go in sleep mode if Alarm horn is defective (open circuit) ?

[cheker123]

Please can you give me the pin code of this passat
wvwzzz3bz3e149256

[trystav]

Does the car will go in sleep mode if Alarm horn is defective (open circuit) ?
Did you finally find a solution with the problem of the battery drain?
I have recently acquired a Passat 2006 and I have the same problem.

[pawl]

close the car with the remote control, see if there is a flash of the direction indicator. frequent failure of the locks

[makadam]

Yes, problem was driver door module couple of dry joints.