The first motor locks the door, the second motor blocks the remote control of the doors - the so-called security function. After that, the doors cannot be opened from the inside.
The actuators on the fuel tank cap and tailgate consist of one motor and can be changed individually.
After an accident with airbag deployment, the central locking system control will unlock the doors if they were locked. The control unit is located in front of the driver's seat, on the left under the floor mat.
We do not describe here the process of dismantling individual parts of the system, but only show where these parts are located.
Details of the centralized door lock system: 1 - control unit 3387 for the front right door, 2 - control unit 3389 for the rear right door, 3 - V155 engine for unlocking the fuel cap, 4 - V159 engine for unlocking the rear door (luggage), 5 - Control unit J388 for the rear left door, 6 - Control unit J386 for the driver's door, 7 - Central control unit for the convenience system (behind the facing of the first pillar, at the bottom), 8 - contact switch for the hood.
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