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BMW E46 2000 central assembly - bmw e46 central locking assembly

1988zajac1988 11595 11
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  • #1 16991164
    1988zajac1988
    Level 10  
    Posts: 10
    Rate: 11
    Hello
    There is a problem with the central locking assembly. I bought a car with only the central key in it. I bought a controller with remote controls and now ask where they are / plug in the control cables because according to what I received from the seller it is in a bundle with the door and the rest on various forums advise in the comfort module under the passenger shelf somewhere ...... (only different are given pins) or a shortcut button from the center of the cab is to be connected to the switch for closing the door in the middle of the cab (this button BMW E46 2000 central assembly - bmw e46 central locking assembly BMW E46 2000 central assembly - bmw e46 central locking assembly together with the emergency lights - I will add that there are 5 cables).
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  • #2 16991211
    moto-kord
    Level 28  
    Posts: 800
    Help: 137
    Rate: 501
    Connect the controller to the door harness as you have provided.
    In the module behind the pin 54 compartment open 36 close.
  • #3 16991243
    1988zajac1988
    Level 10  
    Posts: 10
    Rate: 11
    moto-kord wrote:
    Connect the controller to the door harness as you have provided.
    In the module behind the pin 54 compartment open 36 close.


    it's about the bundle that goes out of the door in this 5:35 rubber hose
    link
    Added after 8 [minutes]:
    who knows under this button BMW E46 2000 central assembly - bmw e46 central locking assembly
    5 pins are attached to it, only in which what? I am aware that then the turn signals will not flash but it is only about closing / opening the door without signaling
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  • #4 16991308
    moto-kord
    Level 28  
    Posts: 800
    Help: 137
    Rate: 501
    1988zajac1988 wrote:
    it's about the beam that passes from the door in this rubber hose

    Exactly
  • #5 16991323
    1988zajac1988
    Level 10  
    Posts: 10
    Rate: 11
    sec in that something was marred there and fly with 3 cables next to her and rather without removing the bacon can not do. I think they will look under the storage box of this module and something faster can be found
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  • #6 17020521
    Coolbit
    Level 18  
    Posts: 403
    Help: 16
    Rate: 90
    Why are you installing something you already have?
  • #7 17031472
    1988zajac1988
    Level 10  
    Posts: 10
    Rate: 11
    because when buying a car there were no pilots only the keys
  • #8 17033714
    SKRZYNIA
    Level 23  
    Posts: 761
    Help: 70
    Rate: 198
    Just as given by the seller, i.e. plug in the beam coming out of the driver's door - checked many times in this model by me
    greetings!!
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  • #9 17034175
    1988zajac1988
    Level 10  
    Posts: 10
    Rate: 11
    BMW E46 2000 central assembly - bmw e46 central locking assembly

    since the door .... will it be a valid connection as it says?
  • #10 18083257
    jastrzab0
    Level 1  
    Posts: 1
    Rate: 2
    Hi, I'm trying to connect a similar lock in E46 Convertible and pins 54 and 36 do not work as I give 12V.
    on pins 13 and 51 I have 12V for a while when closing and opening, however as I connected there
    the cable from the central lock has a fuse (there is a fuse at the connection of this central lock to the plus).
    How to connect it, because I understand that the control is + or gives 12v.
    Although the weight is given in this diagram.
    I don't have pins 4 and 5 in the door cube, it's empty.
  • #11 19808850
    tuptusiowie90
    Level 1  
    Posts: 1
    moto-kord wrote:
    Connect the controller to the wiring harness in the door as given.
    In the module behind the storage pin 54 open 36 close.


    I did and almost burned the module. I do not recommend
  • #12 19813115
    SKRZYNIA
    Level 23  
    Posts: 761
    Help: 70
    Rate: 198
    Control 2x mass from the driver's door, you have a good diagram, I always do this model and it works !!
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Topic summary

✨ The discussion revolves around issues with the central locking assembly of a BMW E46 (2000 model). The user seeks guidance on connecting a new remote control unit to the existing central locking system, which was previously only operable with a standard key. Various responses suggest connecting the controller to the door harness and locating the comfort module under the passenger shelf. Specific pin connections (e.g., pins 54 and 36) are mentioned, along with the need for proper wiring to avoid damaging the module. Some users share their experiences with similar installations, highlighting potential pitfalls and alternative wiring methods.
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FAQ

TL;DR: BMW E46 central locking is triggered by two negative pulses (“2× ground”). “Control 2x mass from the driver's door.” [Elektroda, SKRZYNIA, post #19813115]

Why it matters: This lets you wire an aftermarket remote safely without frying the comfort module; this FAQ shows where and how for DIYers.

Quick Facts

Where should I connect an aftermarket remote in a BMW E46?

Tie the remote’s lock/unlock outputs into the driver’s door wiring harness. This tap point is proven to work on E46. [Elektroda, SKRZYNIA, post #17033714]

Is the E46 central locking positive or negative trigger?

It uses two negative triggers (2× ground) for lock and unlock from the driver’s door. “Control 2x mass from the driver’s door.” [Elektroda, SKRZYNIA, post #19813115]

Which comfort‑module pins are often mentioned for lock/unlock?

Some posts reference pins 54 (open) and 36 (close) on the module behind the glovebox. Verify before applying signals. [Elektroda, moto-kord, post #16991211]

Is it safe to drive the comfort module directly on pins 54 and 36?

Proceed carefully. A user reported almost burning the module when trying that approach. Use door-harness negative triggers instead. [Elektroda, tuptusiowie90, post #19808850]

Where is the comfort (GM5) module located on E46?

Behind the passenger compartment/glovebox area referenced in posts discussing pins 54 and 36 for lock control. [Elektroda, moto-kord, post #16991211]

I have an E46 Convertible. Why don’t pins 54/36 behave as expected?

Convertible wiring can differ. One report shows +12 V pulses on pins 13 and 51, and missing door‑plug pins. [Elektroda, jastrzab0, post #18083257]

My fuse blows when I connect to pins 13/51; what’s happening?

You’re likely feeding +12 V where the system expects a different trigger. That caused a blown fuse in a report. [Elektroda, jastrzab0, post #18083257]

What does “2× mass” mean in this context?

It’s BMW‑speak for two ground pulses. Your remote’s outputs should provide brief negative pulses for lock and unlock. [Elektroda, SKRZYNIA, post #19813115]

Quick 3‑step: how do I wire the aftermarket remote on an E46?

  1. Mount the controller securely near the driver’s kick panel.
  2. Splice its lock/unlock negative outputs into the driver’s door harness.
  3. Test pulse timing, then insulate and secure all joins. “Always do this model and it works!!” [Elektroda, SKRZYNIA, post #19813115]

Can I retrofit remote locking if my E46 came with only keys?

Yes. Owners add a universal remote controller and tie into the existing door harness to drive central locking. [Elektroda, 1988zajac1988, post #16991164]

Will I get hazard‑light flash when using only the lock/unlock lines?

No. The poster tapping the console switch noted lock/unlock without turn‑signal confirmation when wired that way. [Elektroda, 1988zajac1988, post #16991243]

Any model‑specific gotchas or edge cases to expect?

Yes. Convertible harness cavities may be empty, and experimenting at the module can damage it. Verify pins first. [Elektroda, jastrzab0, post #18083257]

What’s a safe rule of thumb for signal polarity and count?

Plan for two signals, both negative pulses, from the driver’s door harness. This matches repeated expert advice. [Elektroda, SKRZYNIA, post #19813115]

Do I have to remove the door panel, or can I work at the glovebox?

Working at the door harness avoids glovebox‑module risks and aligns with experienced installers’ guidance. [Elektroda, SKRZYNIA, post #17033714]
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