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Passat b5 - The comfort module discharges the battery after the Center Lock is c

djluki2013 10212 11
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16228974
    djluki2013
    Level 14  
    Hello, I have already searched a lot of entries and I have not found a solution to this problem. I have a Passat B5, it discharges the battery, but only after closing the central, when I leave it open (without closing the central), the consumption from 0.32A drops after some time to 0.02A and it's ok, nothing is happening. When I turn on the central consumption from 0.38A, it changes to 0.23A and keeps it like that forever.
    I have already checked almost all the cubes. I decided that it was in the driver's door, because when I detach the cubes from the module on the front and back of the driver's side, the consumption drops to 0.03A and it is ok. One of the modules will be damaged?
    Thank you in advance for your help
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  • #2 16228980
    slevy70
    Level 18  
    Look carefully at the harness from the module in the floor, it rots from excess moisture, especially in the places where several wires are connected to each other, as well as the rubber joint between the door and the post. Unplug the cubes from the post to the rear door, you will know if it is the front or the back that consumes electricity.
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  • #3 16229070
    djluki2013
    Level 14  
    A strange thing with these modules on the doors by the motors, because if I put both out, it drops to 0.03A after closing. and when I put it out separately, the front and back are still 0.23A. I will check the installations under the upholstery one more time.
    Added after 5 [hours] 6 [minutes]:
    I checked the cables going to comfort, the module too, without moisture and raid. 2 joints (welds) were a bit dusty, I soldered but nothing changes. After closing the car, I have 0.22A and I unplugged one module on the driver's door and the consumption dropped 0.05A, then the left rear module (from the driver and again) dropped 0.05A, then the comfort module dropped by 0.03A, but 0.10A remains. after disconnecting it all. I also checked the unfastened driver module and the left rear door in the door, the comfort module connected and I locked the car after about 15 minutes, the car went to sleep and the consumption was 0.03A, but the two locks on the passenger side and the right rear door did not lock when closed. I think sometimes when it locks, the alarm will arm (the indicator on the door is blinking) and it does the current consumption that will not drop below 0.22A? The siren is in the trunk and is there any control alarm also there? What do colleagues think about this. Maybe with an alarm it is normal power consumption? I will add that there are no errors in the comfort module.
    Thank you very much
  • #4 16233580
    Anonymous
    Level 1  
  • #5 16553356
    Passat b5 fl 2001 r
    Level 2  
    Hello,
    It's a question and a challenge for people who really understand it. I have a problem with the power consumption of the VW Passat b5 fl 1.8T model from 06.2001. The situation is unique, because after many and continuous weekly checks, the consumption shows 0.05 / 0.06 A, which is what I know from electromechanics. normal. The situation with him is that once he withstands a day, sometimes a few days, a week, once he lasts over a month, and other times it rains 2-3 times in a row the next day after inserting a charged battery, even another. It turns out that there is no excessive consumption at the moment, but something in it suddenly surprises and unloads completely in one night. He also does not take it gradually, because he fires "from the arrow" every day, even in the evening, and then in the morning he will not even turn the starter, and the AKU is completely discharged. It is definitely not charging because it is normal and it was 14.2 A, the consumption was normal, the radio does not take, because it was also checked, the module is pulled out 3 times, there is no water in the module, there was no moisture in the can itself, although on the floor where the module and the bundles were a bit damp the second time. I would like to add that the electrics start to go crazy - the central locks can close and open when the door is closed, the windows fall, setting the left mirror, both work, with the right one normally one. Such symptoms have recently appeared, much later than the problem of discharging AKU appeared. And what's important, the car is with the second electromechanic (supposedly really good and recommended) for over a week and another one spreads his hands because he does not see the power consumption ... Is there anyone competent who can tell me if it is excessive (above the standard) There is no current consumption, due to the crazy electrics, the module replacement may stop discharging the AKU? I will be grateful for constructive and rational feedback and help. best regards
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  • #6 16553420
    piotrekwoj1
    Level 42  
    There are a lot of competent people here, but no one will answer your question without personally checking anything in this car. It is nonsense that there is no excessive power consumption. 100% something wakes up or does not go to sleep that's why it is so. It is not every day as you have noticed yourself. You have to connect an ammeter and watch, close and open the car. I bet 100% that one of the drivers "does not go to sleep".
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  • #7 16559608
    Passat b5 fl 2001 r
    Level 2  
    Yesterday at 17:00 taken from the electromechanic. As I wrote, he claims that he does not see anything in excessive power consumption ... The car has been with him for almost two weeks, allegedly checked every day. Today I drove it to work. I came back at 3:10 PM and then at 6:40 PM he didn't even turn it and again lies plugged into the charger ...
  • #8 16559873
    piotrekwoj1
    Level 42  
    Passat b5 fl 2001 r wrote:
    Yesterday at 17:00 taken from the electromechanic. As I wrote, he claims that he does not see anything in excessive power consumption ... The car has been with him for almost two weeks, allegedly checked every day. Today I drove it to work. I came back at 3:10 PM and then at 6:40 PM he didn't even turn it and again lies plugged into the charger ...

    He's getting down to it badly. You won't find it by measuring every now and then. It is best to have the clamp fastened.
  • #9 16561643
    Anonymous
    Level 1  
  • #10 16792821
    djluki2013
    Level 14  
    After a long time and several attempts, the defect is done. Current consumption after locking the car 0.05A. It turned out that everything returned to normal after all the locks on the doors were repaired (soldered). Come on, no fault with the locks was gone and the locks were working properly. The car has been driving for several months without discharging the battery.
    Thanks to everyone for your suggestions and help.
  • #11 16792942
    Cyoxite
    Level 8  
    I had a similar problem, the culprit was a burnt transistor in the comfort module. After locking the car, he activated an option that discharged the battery. Perhaps someone will also need such a solution.
  • #12 20278201
    iouribybyk
    Level 1  
    Hi. I searched the forum because I had the same problem. Just came to say that in my case it was the comfort module's ground that was faulty. Looked pristine but when I took it off and reconnected the consumption dropped from 0.2 amp to 0.02 amp next time I closed the doors. Hope it helps.

Topic summary

The discussion revolves around a battery discharge issue in a Volkswagen Passat B5, specifically related to the comfort module and central locking system. The user reports that battery consumption increases to 0.23A after locking the car, while it drops to 0.02A when left unlocked. Various users suggest checking the wiring harness for moisture damage, ensuring the comfort bus is functioning correctly, and verifying the coding of the comfort module. Solutions include inspecting and repairing door lock modules, addressing faulty ground connections, and replacing burnt transistors in the comfort module. Ultimately, the user resolved the issue by repairing the locks, leading to normal consumption levels.
Summary generated by the language model.
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