Central locking problem

Sorry Andrew , no BCM on this vehicle . The Central Security Module is incharge of power door locks . Central Security Module For additional information, refer to Section 419-10 .
The central security module is equipped with a battery back-up which holds the programmed transmitter(s) memory in the event of the vehicle battery disconnection.
Principles of Operations The Door Switch Lock Function When a door lock switch is moved into the lock position or a door lock cylinder is rotated to the lock position, the door lock switch grounds the lock circuit input to the central security module. The central security module then provides 12 volts to one side of the door lock actuators contained in the door latch unit and simultaneously grounds the other side of the door lock actuators. This completes the door lock actuator circuit, causing the door lock actuators to rotate a cam assembly, which then locks the doors.

The Door Switch Unlock Function When a door lock switch is moved into the unlock position, the door lock switch grounds the unlock circuit input to the central security module. The central security module then provides 12 volts to the opposite side (relative to locking the door) of the door lock actuator(s) contained in the door latch unit and simultaneously grounds the other side of the door lock actuator(s). This completes the door lock actuator circuit, causing the door lock actuator(s) to rotate a cam assembly in the opposite direction, which then unlocks the door(s). The 12 volts which the central security module provides to the door lock actuator(s) are provided to each door lock actuator from the individual pins on the central security module connector.

Keyless Entry When a remote transmitter button is depressed, it transmits the appropriate command to the central security module as a radio frequency. The central security module receives the command from the remote transmitter through an antenna, which is incorporated in the central security module.
When the central security module receives a command from the remote transmitter, it then sends the appropriate output to control the desired devices. These outputs devices include:

• The front and rear door lock units.
• Central timer module (CTM).
• The liftgate release motor.
• The right and left side turn signal lamp(s).

The central security module sends a signal to the CTM when courtesy lamp illumination is required.
Computer Operated Locks Each front door lock actuator contains a bipolar motor that controls the lock and unlock linkage. The lock/unlock lever of both front door interior handles use linkage to actuate the lever lock switch located inside each front door lock actuator. Each lever lock switch remains in the unlock position until lock/unlock lever of the interior door handle is moved to the lock position. This action toggles the lever lock switch to the lock position. The central security module uses only one electrical input for both lever lock switches. The central security module cannot determine whether the driver or passenger door lever lock switch was actuated. Therefore, actuating the lock feature from either front door will have the same affect of locking all doors. Actuating the unlock feature will not unlock any other door.
The door lock control switches for both front doors also use only one input to the central security module.
Both rear passenger doors contain a rear door lock actuator that controls only electric lock or unlock of the door. Actuating the lock/unlock lever at either rear passenger door will have no effect on other doors.
The panic feature of the remote transmitter sounds the vehicle horn when the vehicle is not equipped with anti-theft. If the vehicle is equipped with anti-theft feature, a separate horn is sounds for the panic feature.

The master central locking module may be faulty. If the remote still operates the drivers side door lock and it will manually unlock with the key, it's possible the central lock mechanism in the drivers door is no longer sending a signal to all the other doors to lock/unlock. If all the door locks operate when you manually unlock the drivers door, the issue may be the remote receiver unit. It would help to know what car you're driving as some vehicles have inherent faults that are common and there is usually a go-to method of rectifying the problem.

Try unplugging the passenger door module from the wiring harness. Module may be bad. I see one screw holding it with tabs at the other end. You should be able to pull it up without removing the door panel. I see there are modules online for less than $40.

http://www.manualowl.com Hope this helps! Jimmy

Hi:
It is extremely difficult to remove the door panel with the door closed. You mentioned that you can unlock the door with a key, so does the door still open and close once unlocked? You most likely just need to replace the power door lock solenoid, as when they fail, they usually sieze up, and make manual lock unlocking difficult.

hi, does the drivers door unlock and lock all the other doors if it does then you may find that a clip or connecting bar has come off the passenger door lock, you would need to take the door panel off to check,

If how ever the passenger door dont lock and unlock via the drivers door then you would need to buy a new central locking motor for the passenger door..

Your best option would be to remove the passenger side door panel and get someone to lock and unlock the drivers door whilst you look at the passenger side and have a look to see what parts are moving this should then give you a good idea of the parts that could be damaged

lock actuator is bad...

Hi had a skoda with problem like this one changed lock fixed it

If all the doors do not lock or unlock when using the passenger side switch, then the switch itself is probably bad.   If the passenger side switch locks or unlocks all the other doors except for its own, then the power lock solenoid inside the door is bad or jammed.  If it is jammed, try locking and unlocking the door manually while activating the switch to work its way free.

Get in passenger side and unlock drivers side manually, this will unlock the 4 doors.