Features of connecting the signaling system to the central locking system (Lada Granta)

Hello everyone, dear friends, today we’ll talk about why the central locking on a Lada Granta car does not work. The main task of the central lock is to open and close doors remotely.

This is controlled either from the remote control or by turning the key in the driver's side door lock. Try to be careful when handling the control panel, because inside there is an electronic circuit that can be damaged. And do not forget to change the battery on time, since the remote control will not work without power.

Drivers of this car should be aware that when removing the terminals from the battery and then installing it after some time, the central locking does not begin to work fully. When you press the remote control, most likely, only the driver's door will close, and the other doors will have to be closed by hand. In order for the central locking to work at full capacity, you need to remove the negative battery for a couple of minutes and put it back in place.

After using the vehicle for a long time, a problem may arise in one of the passenger door lock latches. Namely, this latch will not lower all the way and because of this the lock will not work and the door will remain open. To fix this problem you will have to remove the door trim and deal with this unit. Namely, with traction or maybe the plastic assembly has become loose, you need to fix it. Well, that’s all, we have looked at the main reasons why the central locking on a Lada Granta car does not work.

Here we will only look at what the alarm connection to the central locking circuit is, and we will talk about different Granta configurations. The first option is intended for “luxury Grant” cars, those that have a central locking control button in the cabin. If there is no such button on the armrest, as, perhaps, the armrest itself, then another design option will suit you. We will now look at all this in more detail.

Preparing the car before connecting

What controls the central locking? A special block to which the lock actuator wires fit. There are also two wires connected to it, connected to the driver's door microphone. More precisely, this wire is used alone in “Grant”, it has a brown sheath, and the second contact from the “micrik” is connected to ground.

The “micric” itself is located inside the actuator. So, the first piece of advice: after removing the left front door trim, you need to find the cable going from the actuator to the 7-pin connector.

Depending on the configuration, under the trim you will see the following:

  1. There are 6 wires suitable for the connector (from 2 microphones and a drive);
  2. The cords from the electric drive (pins “2/7”) are not connected, but there is still a brown wire connected to pin “1”;
  3. Only those wires that, according to the diagram, should be connected to contacts “4/6” are missing.

Connecting the signaling means that the wires from contacts “2/7” are still connected to the central locking control unit. The cords coming from the three actuators are always connected to the standard unit. You need to connect a fourth one, if this is not done by the factory. You may have to lay a two-wire cable from the door to the central lock control unit:

The central locking control unit is located under the fuse block, it is designated BUBD-2190.

Here's how one of the car owners coped with the task:

The cords that come out of the door are connected to the wires of the standard terminal block. The following connector pins are used: “3” and “4”. The main thing is not to confuse them. Take another look at the diagram to see what exactly we are talking about.

Types of faults

The central locking system installed on cars has the same operating principle and a similar connection diagram. Before starting repairs, you should find out how to disable the central locking and diagnose the equipment.

If the car has an alarm system, the central locking is controlled using a remote control - a key fob. When you press the keys, a signal is sent to the control unit and functions are adjusted. The activated central locking system opens the doors.

The central locking system includes switches, connecting wires and electric or vacuum type drives as common elements. Actuators are activators. The front doors have a central drive, which, when activated, sends electrical signals to close or open the remaining doors.

Auto central locking activator

Connecting the signaling to the central locking system

Now we get to the most interesting part. The contacts of the signaling relay must be connected to the gap in the brown wire (see diagram in Chapter 1). Moreover, this will be required regardless of the configuration. Oddly enough, we won’t need power cables at all. And the task now looks like this: you need a two-wire signal cable connected to the break in the brown cord.

The moral here is:

  1. If you were able to remove the central lock control unit, connect the cable to the break in the wire connected to pin “7” of the control unit;
  2. If you have removed the door trim, then pull the cable out of it (from the point where the brown cord breaks).

It is clear that the second side of the cable must reach the relay connector of your alarm.

Option for the “Lux” package

So, this means that there is a button on the armrest in the cabin that allows you to lock the locks. From one of the contacts of the button, to which a “plus” is applied when pressed, you need to stretch the cord to the signaling unit. Nothing else is required, and you can connect the alarm according to the following scheme:

According to reviews, this option is suitable if we are talking specifically about the “luxury” configuration. By the way, the resistor can be connected to the gap in the wire designated “blue” (the common contacts are then connected with a jumper).

It must be remembered that when working with any electrical equipment, you must first remove the negative terminal from the battery.

Each cord that is re-laid must not touch metal surfaces. Otherwise, in places of contact, the wire is protected with a tube that can withstand temperatures of 250 degrees. This is how you can protect yourself from unforeseen consequences.

Option for the “Norma” configuration

Let's say there is no button in the cabin that allows you to perform emergency closing. Then you need to connect the signaling to the central locking system according to the following scheme:

As you can see, unlike the first option, there are no resistors here, and positive voltage is not used at all. But in the luxury configuration the effect that is characteristic of this scheme will not be observed:

  • We perform closing from the key fob - all locks are locked;
  • We try to open the locks with the key fob - only the driver's lock unlocks.

If you are satisfied with this property, try to implement the scheme in practice. And other options, more advanced, look much more complicated.

Read what is said about installation safety in the previous chapter. Do not neglect the advice about disconnecting the negative terminal. We work only with signal circuits, so nothing will fail even if connected incorrectly. However, be careful not to confuse the locking and unlocking relays, which are located in the alarm unit. This unit is usually equipped with a 6-pin connector (for details, see the signaling manufacturer's instructions).

Way out

What to do if the car door does not open from the inside or outside? In fact, there are not so many solutions.

  • Call a qualified service technician to open the door or lock. Considering current prices, just one call will cost the owner half the average salary. So it's not fun for everyone. This service can only be used in extreme situations;
  • Remove the door hinges and unscrew the lock fastening: this option is more suitable when the front doors are jammed. The bottom line is this: if the door cannot be opened either from the outside or from the inside, then you need to use a Phillips screwdriver to unscrew the two hinges of the rear door that follows the “problem” door. In this way we will provide access to the rear wall of the lock mount. Here it’s a matter of chance, you can unscrew two bolts the first time, or spend 10-15 minutes doing this. After unscrewing the bolts, disconnect the rear wall of the door lock from the body. All that remains is to make an effort to pull back the door, and everything is ready;
  • Next, it is necessary to remove the mechanism itself and do diagnostics, look for the cause, but this is “a completely different story”;

Unscrew the rubber seals and get to the lock hook: the solution to the situation is very good, both for the domestic and foreign automobile industry. No matter which door is jammed, you need to remove the upper rubber seal between the glass and the outside of the door. Before us will be a space one centimeter wide, which must be used with maximum efficiency. The idea is to find a piece of wire, bend it at the end, creating a kind of small hook. Lower it into the space created in the area of ​​the door lock, and pull the hook from the inside. I’ll say right away that the task is not easy and requires half an hour of practice. As a rule, you can open the lock 10-15 times. And then the standard procedure for finding the cause.

What to do if the rear doors are jammed?

Depending on the design of the car, try to reach from the luggage compartment side to the lock mounting with a Phillips screwdriver. In this case, the longer the screwdriver handle, the better. Be prepared for the fact that you will have to completely immerse yourself in the trunk and carry out work.

There are known cases of VAZ and GAZ vehicles being opened, but there are no cases of foreign cars. The procedure will take more than an hour. It is easier to get to the mount in a car with a station wagon or hatchback, since the distance is minimal, and therefore in the field of view, unlike a sedan.

Programming the duration of control pulses

Even if the alarm is connected correctly, it is not a fact that the owner will be able to control the locks from the key fob. The point is that it is necessary to correctly select the duration of the control pulse (for locking and for opening). There is no need to make it too large so as not to overheat the actuators.

See what exactly the manufacturer Starline offers. We can set the pulse duration to 0.7 s, which should be enough. The value “3.6” will be redundant at the same time.

The “Lux” package has the following property: after 15 minutes of inactivity, the electronics “fall asleep”. It may take an extra boost to wake her up. So, try to use the option that provides for a double pulse. The main thing is not to activate the “comfort” option, which uses a 30-second duration. To connect the signaling with “comfort”, you need to install an additional unit in Grants (AvtoVAZ does not produce it). We wish you success.

Circuit breakers

In this case, the lock will not only not close, but will also stop opening the doors. It's worth taking a look at what's going on in the fuse box. The fact is that the central locking system itself is quite dynamic. Various short circuits in its wiring are by no means uncommon.

If this is a standard lock, then you should look for its fuse in the factory block. If an alarm system is installed (and often it is this that controls the operation of the central locking), then you should look for the fuse on the positive power wire of the unit.

The malfunction of at least one of these objects explains the problem with the central locking. The way out of the situation is simple. You need to replace the blown fuse with a new one. Sometimes you have to struggle with removal - the element sits tightly in the connector.

How to replace the central locking unit

Required

: remove the mounting block (put it aside without disconnecting the connectors with wires), a new central locking control unit (article 21900651201000, price about 1100 rubles).

  1. Remove the two screws securing the block.
  2. Disconnect the block with wires (pull it towards you).

The most difficult thing: unscrew the screw securing the mounting block, unscrew the bolts securing the central locking unit, remove the connector from the central locking unit and install it in its place. If it is not possible to tighten the bolts of the central locking unit in the reverse order, use plastic ties.

The process of removing and installing the central locking control unit on the Lada Granta is also shown in the video:

By the way, do you know that LADA cars can be equipped with sensors? This update will change the way you think about lock management.

The central locks (CL) installed on Grants allow their owners to lock and open the doors of their car from a distance using the remote control, or to perform this manipulation by turning the key in the lock of one of the doors (driver's).

Mechanical problems

In addition to purely electronic causes of malfunction, central locking failure can be caused by simple mechanical failures. Sometimes you can see how all the doors except one open from the central lock. The reason is the cylinder drive rod. For a more clear description of the method of troubleshooting, we first consider the structure and operating principle of the lock.

From the remote control, the signal goes to the control unit, and then it goes to the motor located in the doors. It sets in motion a rod, one end attached to the larva. Depending on the specific signal, the bar rotates the cylinder, opening or closing the door. Sometimes the rod end falls out of the mount. In this case, a failure of the central lock on one of the doors is observed.

general information

On machines equipped with Norma, central locking control units are installed, which are replaced with new ones if they break down. On Luxe vehicles, TsBKE are used instead. Below we will try to take a more detailed look at the central locking unit and its control unit, their relationship with the remote control, symptoms of a malfunction of this part, and also provide instructions for replacing it yourself.

Now let's look in more detail at remote control, which is intended not only for locking and unlocking car doors at a distance with synchronous activation of the security mode. In addition, it allows you to lock all locks with one turn of the key, lock and unlock all door locks by pressing one button located inside the cabin, and also turn on and off the car alarm both remotely and with the key.

Operating modes

Door locks on Grants are blocked by pressing the corresponding key on the remote control, after which they can be unlocked using the remote control in stepwise and simultaneous unlocking modes. The first of the listed modes will allow you to unlock all door locks by double pressing the key (first the driver's door is unlocked, and then all other doors). When you activate the second mode, you can unlock all the doors of the car at the same time, with one click.

To change the mode, the car owner will need to perform the following steps:

  • first you need to turn on the ignition with the remote control key;
  • then you will need to press and hold the unlock and lock keys in this position for five seconds;
  • After the buzzer sounds, release the keys.

Blocking

If, after unlocking the door locks, you do not open the trunk or one of the doors, or do not turn on the ignition, then after twenty-five seconds all doors will be locked again.

Control from the cabin

When blocking doors directly from inside the car, you need to press the corresponding button located on the driver's door, or press a similar button in the module of the same door. Unlocking will require lifting the desired key on the door or pressing it in the module. To lock the doors from the outside, you will need to turn the key in the lock located on the driver's door clockwise, and to unlock the doors, turn the key in the opposite direction.

Window control

By pressing and then holding the lock button in this position for three seconds, you can raise the lowered door windows, with the front windows going up first, followed by the rear door windows. By pressing and holding the unlock key for three or more seconds, you can lower the raised windows in a similar sequence.

Opening the trunk

Unlocking the trunk lid lock on a Grant using the remote control is possible only after turning off the ignition. So, when opening the lid, you must either press the key on the remote control twice, with a minimum interval, or press it once, but hold it down for at least several moments. When the security mode is activated, the trunk will open synchronously with the security zone being turned off for at least half a minute. To close the lid you will need to slam it shut again.

General recommendations

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Periodically open the door with the key, even if you always use the central locking key fob, so that the door lock mechanism does not get stuck.

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Do not try to warm the lock with hot water if it is frozen in winter. It's better to try an electric hair dryer. Commercial liquids for freezing at low temperatures do not always help.

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Tighten the door suspension, if it wobbles, this can lead to jamming of the lock and blown fuse for its power supply.

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How can you determine which alarm system is used in a car using a key fob?

If the car windows sweat from the inside https://voditeliauto.ru/sovety-voditelej/zapotevayut-stekla-v-mashine-iznutri-chto-delat.html what to do in this case and what folk remedies can be used.

Video - repairing the central locking on a Hyundai Getz:

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Incorrect operation of closing/opening doors makes up the bulk of problems with car alarms. Moreover, if on cars with the simplest configurations this is expected, since you have to assemble the central locking from scratch and configure all the drives (often of questionable quality), then on modern cars with a CAN bus the installer is not immune from problems arising in the future. Knowing the typical problems that arise with the central locking, the car owner can fix everything himself.

Replacing the central lock on Lada Granta

When replacing the central locking unit, first of all, remove the mounting block, which is put aside, but do not disconnect the block with wires from it. After this, a new central locking control unit is installed (article 21900651201000), the approximate cost of which is 1100 rubles.

To begin, unscrew both bolts on which the block is attached, for which you can remove the fuse box cover and unscrew the steering column casing. Then the block is moved towards the street and they begin directly to disconnect the block, which for this you need to pull towards you. Then the central locking is pushed out, after which the connector is pulled out. Next, reassembly is carried out with the installation of a new central lock.

This seemingly simple job is fraught with some difficulties associated with very limited free space, which makes replacement very difficult and complicated. The most difficult and problematic part of the work process is unscrewing the mounting screw of the mounting block and the bolts on which the central locking unit is attached. After this, the connector is removed from the central locking unit and the new part is installed in its proper place. Problems often arise when tightening the block bolts, which must be tightened in the reverse order. If you have problems tightening the bolts, it is recommended to use plastic ties.

Problem with opening doors after autostart

After using the autostart function, the Starline alarm system can block the automatic opening of doors even if the system is disarmed. In this situation, you have to use the key and open the car manually. The problem may be caused by incorrect connection to the central locking control circuits during installation. To solve, it is necessary to reconnect 2 alarm wires responsible for controlling the lock, provided that there are no problems with the circuits responsible for the operation of the seat belt. If the seat belt cover in the driver's seat is closed, the doors will not open.

It is also necessary to take into account the indicators on the key fob - unlocked/closed lock. This indication indicates arming or disarming, but not unlocking or locking the door.

Correct seat belt adjustment

The seat belt must pass through the center of the shoulder, no matter how tall the person is. Few people know that the position of the mount on the B-pillar can be changed in the vertical direction. To do this, just press the latch and move the loop.

There are two options for connecting this option: 1) Lever in “D” – the doors are locked, lever in “P” – the doors are unlocked
2) When you start moving and pick up speed up to 20 km/h, the doors are locked, lever in “P” the doors are unlocked
I’m telling you : Today I was visiting Dima Hedgehog. Clicked this option.

According to 1 option

I like it. Additionally, I can say this (I experimented) - when you stop (the lever is in D) and open the driver's door (button), when you start driving at 20 km/h, it is automatically blocked again. If you stopped and opened any passenger door (or several) and then drove off, the doors are not blocked, but if you open the driver’s door, then all are blocked.

Greg77716.12.2009 18:13
ohotnik16.12.2009 20:26
Earl_Vadim16.12.2009 20:34

you will object, they say, you parked and manually pressed the lock. What is the point of automation then? As soon as I started up in the parking lot, it locked. and until I arrive at the office, even at a traffic light, anywhere, it’s always locked... and there are no unnecessary twitches of the lock drive.

Source

The door lock function does not work when you start driving

Hello. I cannot engage the door locking function when starting to drive. I switched the door unlocking mode from one-stage to two-stage several times. According to the instructions for the car. The mode changes, there are no questions about this, but automatic locking does not appear when driving. Not with one-stage unlocking, not with two-stage unlocking, perhaps some conditions need to be changed. (For example, start the engine, then change the unlocking mode, etc.) Lada Granta liftback 2022. Luxury. AMT 106 hp

Answers

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Disabling dimming on electrochromic mirrors

One of the advanced solutions for the car interior is an electrochromic rear view mirror. The dimming function prevents the driver from being dazzled through the mirror when there is a strong light source from behind: high beam headlights or a spotlight. If the mirror has two “eyes” and one is directed forward and the other backward, then it is an electrochromic mirror. And if there is a lever, when used, the image in the mirror darkens, then this is an ordinary mirror with a mechanical dimming function.

The dimming mode is not always convenient, but it can be turned off and on again. For this purpose, there is a special button on the electrochromic mirror. On some models, you must hold the button for several seconds to activate it.

Collection of “people's councils”

If the central locking is not working properly, but you know that the key fobs are fully functional, you can try the following steps:

  1. The power supply circuit of the central locking controller is protected by fuse F22. This element can be replaced or simply disabled and then installed back;
  2. Let's say no current flows to the actuator of one door. Then find the terminal block by opening the door 90 degrees. In order for the broken contact to be restored, sometimes it is enough to disconnect the mating connector and connect it again;
  3. Even if the key fob is working, check whether the self-tapping screw is screwed in all the way. It is recommended to loosen the fastening a little, and then everything works reliably.

To follow “tip number 1”, look for the fifth fuse from the top in the mounting block. The rating of this element is 15 Amperes.

Greetings! I decided to add an entry about connecting the alarm system to the standard central lock of Kalina 2, Grants or Priora. Using the example of the good old Starline A91, without any modules and adapters)) While installing the A91 on my father’s viburnum, a difficulty arose with connecting to the central locking system. But for some reason there is very little information about this on the internet. So, to connect to the central locking system, you need to remove the driver’s door card. Here you need a bundle of wires from the activator. According to the diagram below, 2 and 7 are the power, the motor winding. A 1 and 4 signal from the position sensor. We will need a brown wire.

Now let's look at a typical connection diagram for Starline A91

There are blue and blue-black unlocking signals, and green green-black locking signals. Now, in order for the doors to close, you need to break the brown wire. To open, you need to connect it and apply minus. Therefore, the wires and connector X2 need to be connected as follows

We plant black and red on MASS. We program the simultaneous opening of doors. To do this, press the Open and Close buttons on the standard remote control and turn on the ignition until the signal (about 5 seconds) That's all. Now with this connection, all standard buttons will work. No extras There is no need to install the activator. It is also not correct to connect to wires 2 and 7. In this case, the central locking button on the SUEP will not work. The only problem here is that you will have to pull 2 ​​wires into the door.

Now about the tire falling asleep when the doors open only after the second press of the open button on the key fob. This occurs after approximately 10 minutes of bus inactivity. In order for the doors to open after the first press, a double pulse must be given. To do this, in the programmable functions of Starline A91, select Function No. 1 option 3

On Lada Granta and Kalina cars in the Norma trim level, a central locking control unit is used (on the Luxe trim level, the central locking control unit is used instead). If it malfunctions, it is replaced with a new one. This article tells you where the central locking unit is located, what it is responsible for and how to change it yourself.

Garage door remote control

Some car models have one or more buttons that, when pressed, emit an infrared (activity up to 20 m) or radio signal (activity up to 100 m). If your garage door or automatic barrier has a remote opening function, then you can try to program the signal button to automatically open the gate.

To do this, you need to combine the parameters of the signal from the car with the parameters that are specified in the instructions for the automatic gate. This is not always easy to do, but if this event is successful, it will result in a very convenient function. You can, with a clear conscience, forget the gate control panel at home.

Mechanics

In addition to reasons related to electronics, the central lock does not close one door due to mechanical faults. If the lock is standard, then it is more difficult to diagnose. But if simple activators are installed, everything is much simpler. In cases where only one door does not close, it is worth checking the drive rod.

Standard locks, especially on foreign cars, are a single unit with mechanical and electrical parts. Often on old machines, plastic drive elements - gears and shafts - wear out over time. As a result, the motor rotates, but the central lock does not close one door. The force required to open a door is always less than to close it.

The lock rod is fixed to the cylinder lever - it can fall out of its place. Then the lock will not work. The driver will hear the motor running, but the desired action will not occur.

In the case of Chinese activators, the mount may slip along the rod, which controls the opening or closing of the lock. When the latter closes, the activator pulls the lever down, but slips. As a result, the door does not close. You need to disassemble the casing and tighten the fastening bolts.

Useful tips

In order for the door to open if there is a problem with the key fob, you must complete the emergency deactivation procedure. It involves introducing a special code value, but is sometimes performed without it. It all depends on the alarm model.

Interested in how to open a Starline car alarm without a key fob, the user needs to perform the following steps:

  1. Open the door mechanically.
  2. Activate the ignition circuit and leave it on for 20 seconds.
  3. Press the “Jack” mode activation key three times.
  4. Turn off the ignition. If these steps are performed correctly, the security mode will be deactivated.

You can also use this method:

  1. Open the car door, start the engine and ignition.
  2. Enter the first digit of the password using the “Valet” button.
  3. Turn off and turn on the ignition again.
  4. Carry out the second action with the remaining numbers.

Having dealt with the reasons for the key fob not working, all that remains is to find the best way to eliminate them.

The car opens itself after closing from the key fob

and today the following started: I get out of the car, use the key fob (standard original key) to lock the car, everything is as usual (the emergency lights blink, the doors close), but after that the car immediately unlocks itself and remains open.

Has anyone had something similar? Where to dig?

Most likely this is not the case. Today I tinkered with the car. I noticed 2 things: 1. if you open the door (any door!, I tried every one) and with your hand on the door lock move the lock lever to the closed position (i.e., simulate a closed door when it’s actually open) and close the car using the key fob, then the car will lock , but the light on the tidy blinks randomly. 2. I closed the car by pressing the button twice, ok, but the alarm goes off, and also chaotically: maybe after 20 seconds, or maybe after 30 minutes.

The Astra is unlocked completely by a signal from the sensor of any door; if it is sour, then there will be false alarms of the sensor (and signals to unlock all locks). The alarm goes off for the same reason.

Check the connectors of all doors, the contact may have soured, the wire in the rubber corrugation of the body-door may have frayed, there is water inside the connector or corrugations. Try drying it and blowing it with a compressor.

The Astra is unlocked completely by a signal from the sensor of any door; if it is sour, then there will be false alarms of the sensor (and signals to unlock all locks). The alarm goes off for the same reason.

Thanks for the answer, I think we need to go in this direction.

I looked and touched the door connectors, so far no results. I haven’t washed the car for a long time, there shouldn’t be any moisture.

A question arose: Maybe it’s not the terminal devices (sensor) and wiring? Is there some kind of control unit for all this? Maybe that's the reason?

Abnormal opening/closing of doors

In some cases, the alarm is triggered when the door is closed. In this case, the key fob may display information that the door is open. When you close it again and press the corresponding button on the key fob, the car immediately opens and the alarm goes off.

The problem is caused not so much by the system itself, but by the adjustment of the driver's door actuator. It cannot reach the standard traction, and the limit switch does not allow the central locking to open the doors. In this case, there are 2 options:

  • Remove the driver's side door trim and adjust the actuator on the rod.
  • Replace the two-wire activator with a similar system, but consisting of five wires. After this, you need to give him control of the central locking from the standard key fob. It is worth noting that this method is the most effective.
  • After the car has been idle for a long time and the security system has been disarmed, a problem may arise when the doors automatically close immediately. The problem is solved after pressing the open button a second time.

In addition, the wiring insulation may be damaged and the fuse on the green and blue wires in the central locking connector may have burned out. The presence of a short to ground contributes to the spontaneous opening and closing of doors. The problem may also lie in the equipment being in service mode. In this case, the shock sensor will not work. In this case, the key fob will notify you of a malfunction with a signal displaying a wrench. This icon is selected by button 3 and disabled by button 2.

Almost every car has a modern alarm system. It protects it from unauthorized access and also allows you to perform some actions remotely. But during operation, drivers repeatedly encounter problems when the car does not open using the alarm key fob.

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