Why doesn't the fuel pump work on the Cherry Amulet? The fuel pump on the Cherry Amulet does not work

The alarm locks the engine

Hello everyone! Has anyone encountered anything similar? And how to solve this problem without a car service? the Alligator M-425 alarm in the summer

. It seems normal, and it’s not within the budget. When leaving the workshop, the engine locked up (the starter turns, then stops, and... the car still doesn’t start) - they reprogrammed it. go. Then in the fall, on the move, the same garbage (after disarming, everything went away). Now after the cold weather I changed the battery. and she took it and went into blocking mode. And Valet turned it on/off, and with the ignition on, disarmed it. Tried to reprogram. does not enter programming mode. The service people are assholes, they gave a guarantee, but they don’t want to come out. (They probably want to go to court) Over the phone they advised me to remove the panel from the threshold and close 2 contacts on the blocking relay > Not only are there 4 contacts, but I don’t know how many blocking wires there are (orange/white and dark blue) that block the starter and ignition , fuel pump. Who knows, help. here is the diagram https://ugona.net/files/703.pdf

The alarm locks the engine

VALET mode The Valet button switch is used to enable the Valet service mode (i.e., temporarily disable the security functions of the system) if, for example, you need to leave the car at a service station. At the same time, you will be able to control the service functions of the system (for example, remotely unlock the car doors) and enable the remote “Panic” mode.

To enable Valet mode:

Once in the vehicle, turn the ignition on and off. Within 15 seconds, press and hold the Valet switch for 2 seconds. The siren will emit 1 short signal and the LED will start to light continuously, indicating that the system is in Valet mode. Note: When the system is in Valet mode, each time the ignition is turned off, the siren will sound 2 short warning signals.

To turn off Valet mode:

Once in the vehicle, turn the ignition on and off. Within 15 seconds, press and release the Valet switch once. The siren will give 2 short beeps and the system LED will go out. Attention! Don't forget to turn off Valet mode. This guarantees the constant protection of your car.

Emergency system shutdown This system can be disarmed without using the transmitter (emergency system shutdown procedure). This is necessary if, for example, the transmitter is lost, faulty, or if the transmitter batteries are low.

Emergency shutdown of the system without the help of a transmitter:

Open the door with the key (the system will operate, the siren will turn on, the direction indicators, interior lighting, etc. will start flashing) Turn on the ignition. Within 15 seconds, press and release the Valet button switch. The alarm mode will turn off, the system LED will go out, and you can start the car. ATTENTION: Please note that this will not put the system in Valet mode. This means that if the passive arming function is enabled, then after the next time the ignition is turned off and all doors, hood and trunk of the car are closed, a 30-second countdown will begin before passive arming.

A good alarm system is a reliable protector against car theft. At the same time, we cannot talk about the car being 100% protected from theft and disassembly. Any alarm system, even a bank alarm, can be hacked. Another question is that this will take time. The better the alarm, the longer the time and complexity of hacking. Attackers involuntarily raise the question of the advisability of hacking a car with a good alarm system, if there is an option to choose a simpler “job”.

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Like all electronic devices, car alarms can malfunction over time, or as it is now fashionable to say, “glitch.” At the same time, it either does not set the car alarm, or it goes off arbitrarily, or, even worse, it blocks the authorized (from the original key fob, tag or other programmed mode) disarming, and blocks the engine from starting. What to do in this case?

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Door breakdowns

Sometimes situations occur (especially with used cars) when the informant on the key fob shows that the car doors are open, but in reality everything is completely different. In this case, you need to pay attention to the condition of the doors themselves. Check that the central locking system is in working order, as well as all fuses and vehicle wiring. This problem usually occurs in regions with very cold climates. This happens because the machine's mechanisms simply freeze.

Possible reasons for blocking engine start by alarm

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The main reasons for engine start failure associated with alarm blocking include:

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• malfunction of the wiring for the alarm connection and its power supply;
• failure of the alarm immobilizer crawler with auto start;
• malfunction of the relay blocking the starter;
• attempted car theft;
• failure of communication via the CAN bus in the car;
• alarm software failures;
• low voltage of key fob batteries.

What to do if the car does not start due to the alarm

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First of all, you should accurately determine whether the alarm is blocking the engine from starting or whether this problem is due to other reasons. In this case, it is recommended to carry out computer diagnostics of the engine. It is possible that problems with starting the engine are associated with the car's standard immobilizer.

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In BMW cars, it can block the starter. In other models, the standard immobilizer blocks the fuel supply and ignition circuits. The engine may not start due to a failure of other elements of the engine control system. Computer diagnostics will help give an accurate diagnosis.

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The main signs that it is the alarm system that is blocking the engine from starting:

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• flashing of the alarm indicator light in abnormal mode;
• message about a closed lock on the LCD alarm key fob after disarming;
• siren sound;
• activation of emergency light alarms;
• abnormal operation of car alarm buttons;
• lack of response of the central unit to the buttons of the key fobs (it is better to check on all existing key fobs).

The most rational option for trying to “revive” a car alarm using a key fob is to return the alarm to factory settings. To do this, you must use the operating instructions. Sometimes an instruction booklet is included with the alarm; it is best to always store it in the glove compartment. As a last resort, you can always download the instructions on the Internet, or create a request for the procedure for returning the corresponding alarm to the factory settings.

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If the car's alarm head unit does not respond to the key fob, the settings and locking can be reset using the hidden VALET button. It is usually hidden near the driver's left knee, but there are other options.

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A typical option for disarming with a secret button is to turn the ignition on, off, and then press the secret button three times. Many alarm systems have other emergency disarming algorithms, sometimes with the introduction of a PIN code.

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Good to know:

1. It is necessary to prepare for such a situation in advance, communicate the procedure and emergency disarming codes to all vehicle users.

2. If you are buying a used car, you should definitely ask the previous owner about the location of the secret button.

3. Do the same when selling a car with a non-standard alarm; in addition, it would not be amiss to provide the full coordinates of the service station where the alarm was installed (telephone, address, name of the organization).

This can be very helpful in emergency situations. Typically, alarm installers use proprietary alarm installation algorithms and know how to unblock their own work. If such information is available, you can call the installer and, explaining the situation, ask for recommendations on how to solve the problem. As a last resort, it is better to transport the car to an installer.

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There is another unexpected option for blocking the engine start. If a satellite security system is installed in the car (this is common on expensive cars), then blocking is possible after the money in the subscriber account runs out. It happens that a purchased used car one day refuses to start the engine. It then reveals a carefully hidden satellite alarm model.

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If the problem cannot be solved using software methods, you should move on to technical troubleshooting.

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Disassembling and cleaning the central locking remote control (key)

For those whose Kalina is protected under a standard security system, with the usual three-button key fob, this article will be useful. A few months ago there was a problem with opening and closing doors using the remote control. When pressing the buttons, the locks did not always close the first time; sometimes you had to press five times in a row until the central lock clicked.

When this happened for the first time, I immediately thought that the battery had run out, but after some time everything worked fine again. I decided that I needed to disassemble the keychain and see what was the reason for this strange behavior. So, to disassemble the Kalina remote control we need two screwdrivers:

1. Flat blade
2. Cross with fine tip

First, unscrew the thin bolt that holds the two halves of the remote control together; it is located on the inside of the key:

After this, take a flat screwdriver and insert it into the groove on the back side of the key fob, and turning it a little in any direction, the remote control will “split” into two parts:

After which it will look like this:

After a careful inspection, I saw that quite a large amount of dust and other unnecessary particles had accumulated inside, especially in the upper part, where the buttons and the white silicone insert are located. He took it out, prying it up on one side with his fingernail and rubbed it thoroughly. I also cleaned the rest of the key fob.

Replacing the battery in the Lada Kalina remote control:

If cleaning does not solve the problem with the buttons sticking, try replacing the battery; in my case I didn’t have to do this; after a good cleaning, everything began to work perfectly. The battery can be changed quite simply; it is located on the inside of the microcircuit. Unfortunately, I didn’t take a photo from that side, but I think everything is clear, you just need to turn the diagram over and you’ll see everything:

Now everything works the first time, and the buttons began to be pressed with a clear click, and not as before - they were “soft” and sometimes stuck.

ladakalinablog.ru

Technical methods for unlocking engine starting

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The engine starting system in a car alarm is blocked by:

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• via CAN bus with complex programming of modes;
• by starter (starter solenoid relay circuit breaker relay);
• along the fuel pump circuit;
• along the power supply circuits of injectors and injectors.

There are more sophisticated interlocks: in the limit switch of automatic transmission modes, in the power and communication circuits of the immobilizer, in the break in the circuits of the engine control unit. Such locks are made either on an individual order or during self-installation. The bad thing is that in most cases they are forgotten, and then unlocking them is extremely difficult.

General recommendations

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• keep the contact details of your alarm installer in your car at all times, do not trust your smartphone;
• Do not check fuses and relays in the space under the indicator panel away from your parking place or residence. This may cause the car alarm to malfunction;
• at the first sign of a low battery in the key fob (decreased range), replace the battery;
• if failures begin to occur when starting the engine, do not wait until the problem manifests itself completely in the most inappropriate place, immediately eliminate the cause;
• If moisture enters the vehicle interior along the path along the left A-pillar (this often happens in the fall when leaves get into the drainage system under the hood), fix the problem immediately. Otherwise, sooner or later moisture will penetrate the car alarm head unit.

If the immobilizer has blocked the engine from starting, what should you do in this case?

How can I find out the code for the Renault Duster radio?

Video - how to find the engine start blocking from the alarm:

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Engine start blocking is a function that is on the list of available options in almost any anti-theft system. In this case, the system contains an immobilizer that identifies the owner by a special tag and allows the engine to start. Conventional car alarms that have a similar function in their arsenal can also block the engine from starting.

According to experts who work with automotive electrical equipment, more than half of all cases of unexpected engine failures to start are directly related to car alarm malfunctions. Note that the complexity of implementing locks in this case is noticeably simpler compared to complex anti-theft solutions. This significantly increases the chances of removing the engine start lock yourself in the event of a breakdown or malfunction. Next, we will look at what the driver should do if the alarm blocks the engine from starting.

Engine blocking with car alarm

If there are installed anti-theft systems, electrical equipment is responsible for blocking the engine start. Immobilizers or car alarms may be faulty and cause constant or occasional failures during operation.

It should be added that the severity of the problem will depend not on the specific model or brand of car, but on the complexity of the installed anti-theft security system.

Accidental activation of the engine lock function

First of all, carefully study the displayed icons on the alarm key fob. A common cause of blocking is accidental activation of additional functions. It is also necessary to monitor the readings of the LED indicator light (if equipped) in the vehicle interior, which serves as a light indicator of the alarm status. Flashing LED lamps in most cases indicate that the anti-theft function of the immobilizer is activated in the menu.

If, after turning the key in the lock and turning on the ignition, the warning lamp blinks frequently (for example, the StarLine car alarm) before starting the engine, and a pictogram with the inscription “immo” is displayed on the key fob itself:

1. One way to solve the problem is to remove the key from the lock, after which you just need to press the button to open the central door lock on the key fob.
2. You can also get out of the car, set the alarm to security mode, then disarm it and then start the engine.

In other words, you need to make sure that the alarm operates in the normal mode that is familiar to the owner. Up to 30% of cases of engine start blocking by alarms occur due to accidental changes in program settings. The driver’s task is to disable all unnecessary functions in the settings.

Using the StarLine alarm as an example, let us note that this system has the option of “two-stage” unlocking. Activation of the function may occur accidentally; a separate icon will light up on the key fob screen. To turn it off, you must hold down button 3 on the key fob. The key fob will emit two beeps, after which button 3 is pressed once again. Then button 1 is pressed for a few seconds, then the security functions are removed;

Car alarm connection points for Mazda 3 up to 2008 inclusive

Connection via CAN, bypass the immobilizer without a key via iKey. We connect Starline with 2CAN2LIN according to the Ford Focus 2 Ghia/Titanium 2325 scheme (the pins on the OBD of both channels are the same, the colors are different).

CAN-A : pins 3 (CAN-H) and 11 (CAN-L) CAN-B : pins 6 (CAN-H) and 14 (CAN-L) In both buses, CAN-H is gray/purple with two marks, CAN-L is blue/white with two marks, so look carefully at the pins. Via CAN it sees everything except the hood (the limit switch is physically absent), SLAVE (another central locking protocol), and the brake pedal.

CAN blocking .

The central locking can be controlled with low-current additional ground channels in the harness of the large brown fuse box connector behind the glove compartment: close - black/orange, open - black/white.

Emergency control using an alternative button.

To bypass the immobilizer, we connect the RX and TX circuits on the immo reader. Pins and colors are similar to Ford. RX — pin 4 white/green (connect the white Starline wire) TX — pin 3 gray/orange (connect the white/green Starline wire)

Training - press Valet 14 times, turn on the ignition with the emergency key (we take the card away from the car), wait for 1 siren signal, turn off the ignition, wait for 1 siren signal, turn on the ignition, wait for 2 siren signals. Then we carry out the CopyKey procedure.

The ignition switch is normal, ACC . +12V - red or black/red. Ignition 1 (non-fading) - green/yellow. Ignition 2 (disappearing) - pink/yellow. Starter - grey/black.

Below is the data for a car with keyless.

When the standard radio channel is turned on, it does not work for opening and closing.

The thumb latch is unlocked in the presence of a driver card and locked in the absence of a card in all modes. Including ignition support and turbo timer mode.

Disabling locks using the service button in the cabin

If there are no signs of unintentional activation of engine start interlocks, you can try to unlock the engine using the service mode. This mode is called Valet and is used to transfer the system to service mode. To activate, you need to insert the key into the ignition, turn on the ignition and then turn it off.

After this, you need to hold the service mode activation button for about 10-20 seconds. The result will be a notification using a special short signal, after which the signal lamp (indicator light, LED) will be constantly on. This method means disabling all security functions, which may also mean removing the engine locks. We add that after fixing the problem, it is necessary to activate the security functions of the alarm again.

5. Installing a car alarm with auto start on a Mazda 3 2008

All switching connections are made behind the glove box; the unit is placed behind the right side of the glove box. See Rice. 1 and 2.

5.1. Door lock control

5.2. Connecting sensors

To connect a door sensor, it is necessary to “mix” the signals from each door together. To do this, you need to use diode isolation, as shown in the diagram below.

5.3. Trunk and hazard warning control

5.4. Connecting the lock

5.5. Connecting automatic start

Connections are made in the ignition switch wiring harness (see Figure 3).

To bypass the car's standard immobilizer, a Scher-Khan BP-2 crawler is used.

The signal from the camshaft sensor wire can be used as a tachometer signal.

Independent troubleshooting of alarm systems

• It is often possible to fix the malfunction and remove the engine lock yourself if you can detect blown fuses. This problem often leads to malfunctions of the alarm system. The fuses must be checked; if a problematic element is detected, the blown fuse must be replaced with a known good one.
• Malfunctions in the operation of the alarm can also be associated with insufficient battery charge or loose terminals on the battery contacts. In this case, the battery is still able to sluggishly crank the starter, but the engine blocking may already work and further prevent the engine from starting.

• Another step is to check the limit switches (limit switches), which are located under the hood and trunk lid. Moisture ingress or oxidation of the limit switch often causes an incorrect signal to the alarm control unit, which leads to engine blocking. Please note that unprofessional installation of alarms and limit switches, as well as improper engine washing can lead to malfunctions of electrical equipment.

Recommendations for both cases

First of all, we note that when connecting the relay to the power wiring, you cannot make the control pulse too long. Setting the value for more than a second can burn out the actuators. Here we were talking about programming, and now let's talk about the electrical part. As you know, before installation you need to open the hood and disconnect the negative terminal.

This advice should not be ignored in any case.

As for installation, it will be better if the power wire taps are carried out by an auto electrician. With signal wiring, everything is simpler, but the rules will be the same in each case:

• Do not let the cord touch the insulation to metal parts. If contact occurs, additional protection is used. For example, a heat-resistant tube placed over electrical tape is suitable;
• It is better to connect any power cables using twisting. Each twisting point is carefully isolated.
• The cross-section of wires carrying significant current must be sufficient so that the conductor does not heat up. This is how you can protect yourself from unforeseen consequences.

The last tip concerns power wiring. And the ability to twist is a whole art.

You cannot learn this art in one day.

When connecting any equipment, you should strive to make as few changes as possible to the standard wiring.

There must be an opportunity to do the following: return everything as it was. Sometimes it happens that one or more signaling parameters do not take a value that is suitable for the car. And then, the alarm system is changed or they refuse to use it altogether. This needs to be taken into account.

Tips and tricks

If attempts to remove engine locks and start the engine are unsuccessful, then there is a high probability of a serious malfunction or failure of individual alarm elements. The result is random activation of engine locks, which cannot be disabled using standard methods. The faulty car must be taken to a service station, as removing the lock will require professional intervention.

The specified delivery can be carried out by tow truck. Another affordable way is to call an auto electrician who works on-site. Note that the final costs of paying for the service of on-site engine unlocking, disabling the car alarm, emergency opening of locks, etc. often turn out to be less than delivering the car to a service center by tow truck and paying for repairs at a technical center.