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Subaru Legacy IV: Persistent Issues with Newly Installed Polish Parking Sensors

barcin_ski 5220 5
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  • #1 17085303
    barcin_ski
    Level 2  
    Good morning, this is my first post. I hope someone will help me.
    Subaru Legacy IV: Persistent Issues with Newly Installed Polish Parking Sensors
    I have a car, a Subaru Legacy iv. Some time ago I decided to enrich it with parking sensors. Polish manufacturer, sensors front / rear and LED display with info which sensor and what distance. It was set up for me by a garage where the car was going through a tinsmith case.

    And I have a problem. The system behaved strange after it was put on. Every now and then it showed that there was an obstacle on one of the sensors at the front. We concluded with the workshop that the sensor was nuts. We exchanged. Same. Well, the suspicions fell on the switchboard. The store replaced with a new one. Same.

    Disconnecting the cable from the ill-fated sensor causes the symptom to move to the sensor next to it.

    After x different combinations, I think I know what the problem is, but I don't know how to solve it.

    Well:

    - the switchboard is located next to the central console on the passenger side. There is such a plastic cover on the side. The switchboard is located between it and the console.
    - after removing it from this place and placing it on a rug or hanging it on a carpet that enters the plastic surrounding the console, the problem disappears.
    - I decided that the reason must be some electromagnetic field, which may affect the cables or the control unit itself. A field generated by some device in the console. Radio? Climate? On-board computer?
    - I decided to remedy it, I bought a piece of thick rubber, she wrapped the control unit several times with aluminum foil and something changed. Every day I keep my car in the garage next to the apartment I live in. I start the car, the system works ok. I can drive around the garage at will and no squeaking. All I have to do is get close to the garage door and the system goes crazy. As if not only the car itself generated disturbances, the garage or the moment of leaving it.
    - the problem disappears when I leave the garage, turn off the car and start it again. This is not a solution because the battery and the starter
    - I decided to change the insulation material, I bought a tape that is used to make such mattress inserts to hide from electrosmog. The effect is the same as with the foil.

    I know that I could move this switch to another place, but it's a lot of work, and secondly, it tires me.

    The question is how to effectively block this field, if it is a field?
    How to protect the control unit against its accumulation, because it looks like a charge accumulates overnight, which disappears after restarting the car.
    When, for example, a car is standing in the open air for several hours, the problem does not occur or occurs sporadically. I noticed that when, for example, there were severe frosts, then the problem intensified. Help.
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  • #2 17085446
    CameR

    Moderator of Vehicle Security
    barcin_ski wrote:
    suspicions fell on the switchboard. The store replaced with a new one. Same.

    Replace the entire system with a "third-party" system
    barcin_ski wrote:
    Polish producer

    ... or a Polish importer from China?
    Helpful post? Buy me a coffee.
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  • #4 17085954
    CameR

    Moderator of Vehicle Security
    barcin_ski wrote:
    Polish producer

    Quote from your link: "With the change of importer, these high-end reverse sensors will be sold under the OMEGA brand"

    barcin_ski wrote:
    A workshop set it up for me

    So why not "complete" the assembly - so that the customer is satisfied?
    barcin_ski wrote:
    After all, it can't be that complicated.

    I guess it is complicated, since it has outgrown the installer.
    Helpful post? Buy me a coffee.
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  • #5 17086125
    barcin_ski
    Level 2  
    Dear Mr. Do you know the answer?
  • #6 17086390
    CameR

    Moderator of Vehicle Security
    barcin_ski wrote:
    Do you know the answer?

    Yes,
    1. Completely change the location of the system control units and the course of the beams running from the sensors in the bumpers.
    2. Change the way the control unit is powered from the car's installation.
    Either the installer made a connection error or the system is disrupted by "bulb control".
    3. If this does not help - test a different parking sensor system to exclude or confirm problems with the previously installed additional equipment.
    So whether the car interferes with the system, or the system wakes up itself.
    It is possible that the switchboard has a design defect and the entire container may be returned to the manufacturer (or sold on Allegro).


    ... but since you want to fight "electro smog", EMC, play shielding, etc ...
    no one will forbid you, but no one will advise you on anything else that makes sense.
    barcin_ski wrote:
    A field generated by some device in the console. Radio? Climate? On-board computer?

    It is not known whether you need a screen to protect the device's central unit against external fields or to limit the range of the field emitted by the device.
    barcin_ski wrote:
    on the carpet (...) the problem disappears.

    It is possible that there are unfavorable feedback inside the control unit.
    Fighting them is difficult, especially if the control unit itself has been poorly designed.
    Shielding is one big "experiment".
    barcin_ski wrote:
    how to effectively block this field if this field?

    Remember that each hole in the screen will act as a waveguide.
    barcin_ski wrote:
    move this switch to another place, but it's a lot of work

    ... I will not comment on this.
    Helpful post? Buy me a coffee.
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