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Dear expert, our renault laguna 1996 does not lock or unlock from the driver's door or the rear. It only unlocks the passenger's door (it unlock the door only not all the car). The car can be fully unlocked only by using the interior middle button. what could be the problem?
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Door Lock System Components
The power door lock system consists of the following components:
• Driver door module (DDM)
• Passenger door module (PDM)
• Door lock relay--Located in the instrument panel (I/P) fuse block and controls the locking of the rear doors.
• Door unlock relay--Located in the I/P fuse block and controls the unlocking of the rear doors
• Body control module (BCM)
• IP BEC
• Reversible door lock actuators in each door
Driver and Passenger Lock System Operation
The front power door lock switches are integral components of the driver door module (DDM) and passenger door module (PDM). The switches are two-position normally open rocker switches. When placed in either the lock or unlock positions, the switches provide a direct input to the DDM or PDM. The DDM or PDM monitor these inputs and send a LAN message indicating a change in the switch position. Modules, that activate the power door lock motors, receive the LAN message and activate the motor in the appropriate direction to lock or unlock the vehicle doors. The body control module (BCM) upon receipt of a lock or unlock signal will control the rear door lock or unlock relays and also send a LAN message to the DDM and PDM to perform the commanded function.
The modules that activate the power door lock motors are:
• DDM (driver door lock actuator)
• PDM (passenger front door lock actuator)
• BCM (both rear door lock actuators)
The DDM and PDM are directly connected to the respective door lock actuator through the door lock motor lock and unlock circuits. Once a door lock or unlock request has been received, the module will supply battery voltage to one side of the actuator and ground the other, causing the doors to lock or unlock.
The rear passenger doors are controlled by the BCM through the rear door lock/unlock relay which is incorporated onto the printed circuit board in the LH BEC. The BCM controls the unlock relay by providing ground to energize the coil and controls the lock relay by providing battery voltage to energize the relay coil. This energizes the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. Since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.
If all of the other locks are unlocking and only the drivers door is a problem then it is likely that you have a problem with the central locking pump on the door lock. This is one unit and the entire door lock will need to be replaced.
You should have a spare key without a card, it just looks like an L shape simple straight key, on either passenger or driver side door there will be a key sign on one of the handle caps, or a small rectangular whole underneath one of the caps, remove the cap and you will see a normal lock enter that spare key and you are all happy days.
IF YOU TYPE 1999 RENAULT LAGUNA REPROGRAMME KEY INTO A GOOGLE SEARCH, YOU WILL BE ABLE TO PRINTOFF INSTRUCTIONS TO REPROGRAMME THE KEY TO THE KEY READER.THE IGNITION NEEDS TO BE OFF TO DO THIS
is yours the renault keycard to start and open doors?if it is a know these cards can go faulty.they were bad on renault laguna.the switch breaks off the board inside card.can be soldered back on.think you can get replacement switch kit on ebay with instructions how to fix.need someone who can solder with some eletronics knowhow.if not not sure sorry
Renault Laguna II Key Remote Control Programming LAGUNA II INFRA RED RESYNCHRONISING 1. Turn the Ignition OFF. 2. Press the central door locking button for more than 5 seconds. Note: the door should lock then unlock. 3. When this happens 15 seconds is allowed and the immobiliser warning light illuminates. 4. Point the 1st key at the receiver and press the button once, the doors should lock and unlock. 5. Point the 2nd key at the receiver and press the button once, the doors should lock and unlock. 6. Check the remote control unlocks and locks the doors.
think only way is to use your main keycard.should have a cover that pulls off with a master key inside.this locks passenger door not drivers.think there is a cover or something on passenger door handle that this key fits in.this door can then be locked.you may have to get into car.lock drivers door from inside then use the master key to lock passenger door.you can only get back in car though passenger door.try new battery in keycard.coommon fault .switch on keycard breaks off inside keycard.can be soldered back on.think there are replacement switch kits on ebay with instructions how to fix otherwise new card from renault .has to be programed by them.
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