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[Solved] Citroen C3 - Resolving Central Locking Blockage for Passenger and Rear Doors: Troubleshooting Guide

darecki81 7449 8
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 16267618
    darecki81
    Level 7  
    Hello, the problem is blocked doors from the passenger and both at the back.
    I opened it with the key from the driver.
    For example, after connecting an additional 12v power supply to the white cable in the cube from the master lock, the other doors should open ??

    Added after 4 [hours] 21 [minutes]:

    Hey, can anyone help ??
    Anyone have any idea or have ever opened something like that ??
    The three of us go to work and the one who gets into the passenger seat will somehow get on somehow, but the one who gets into so many is screwed up.
    Please help ...
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  • #2 16268313
    daro31ie
    Automation specialist  
    Buddy, check that opening 2 doors with the key will unlock the next one.
    If not, disconnecting the battery sometimes helps.
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  • #3 16268324
    darecki81
    Level 7  
    Hey, can anyone help ??
    Anyone have any idea or have ever opened something like that ??
    The three of us go to work and the one who gets into the passenger seat will somehow get on somehow, but the one who gets into so many is screwed up.
    Please help ...

    Added after 9 [minutes]:

    I've tried everything.
    Acu unplugged, wires checked from master lock to BSI.
    Someone said that it was a relay in the computer and he was probably right, but the computer was around GBP 150 and so much for reprogramming the road.
    For soldering I'm afraid to ask.
    A car worth GBP 500.
    I would like to open it and unfasten the wires so that it is open all the time.
    And there is not even an insert in the passenger door.
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  • #4 16268598
    daro31ie
    Automation specialist  
    The central colleague is controlled by 2 wires on the ground.
    It's very simple to take control of this system.
  • #5 16269133
    darecki81
    Level 7  
    Daro31, thanks for the hint, would you be able to write some more?
    I mean, what to connect to or what to replace with?
    I would be very grateful for your help.
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  • #6 16279050
    darecki81
    Level 7  
    Hello again, forum users, I'm still tired of this lemon.
    Good relays, fuses and wiring too.
    You only hear a tick in every door, and then nothing.
    Anyone have any idea what it could be?
    One more question.
    Will no door open with a collapsed master cylinder?
    How to check the master?
  • #7 16279098
    daro31ie
    Automation specialist  
    darecki81 wrote:
    Hello again, forum users, I'm still tired of this lemon.
    Good relays, fuses and wiring too.
    You only hear a tick in every door, and then nothing.
    Anyone have any idea what it could be?
    One more question.
    Will no door open with a collapsed master cylinder?
    How to check the master?


    The master controls the rest of the actuators.
    If he or they don't work, so will the rest.
  • #8 16281247
    darecki81
    Level 7  
    New Insight ? When you try to open the remote control, you only hear a tick in all doors except the driver's door.
    When closing the door from the driver, you can also close with the remote control.
    On the other hand, when opening the door from the driver manually (with the key), there is no reaction of the other doors, the same when closing.
    I ordered a new master today and we'll see if it helps.
  • #9 17220903
    darecki81
    Level 7  
    A whacked relay in the body of the computer
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Topic summary

The discussion revolves around troubleshooting a central locking issue in a Citroen C3, where the passenger and rear doors are blocked. The user initially attempted to unlock the doors using the driver’s key and sought advice on whether connecting a 12V power supply to the master lock's white cable would help. Responses suggested checking the functionality of the master lock, as it controls the other doors. Users discussed potential issues with relays, fuses, and wiring, noting that a malfunctioning master cylinder could prevent all doors from opening. The user reported hearing a ticking sound from the doors but no unlocking action, and they planned to replace the master lock to resolve the issue.
Summary generated by the language model.
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