What to do if the car does not start from autostart StarLine A91, A93, A94: why the engine does not start from the alarm key fob or from the key, reasons and solution

When installing a Starline alarm, car owners sometimes encounter a problem when the car does not start. In some cases, the car does not start when the car is automatically started, and sometimes the autostart works fully, but the car refuses to start directly from the key. Before solving a problem, it is worth understanding it thoroughly. To do this, it is worth dividing the causes of the problem into 3 categories:

Doesn't start with key fob;
Does not start with the key (problems with connecting the alarm system);
Problems not related to the alarm.

Why autorun doesn't work: main reasons

If the car alarm for Starline A91, A92, A93, A94 or another model stops working and does not start the engine from the key fob to cold or hot, you need to figure out the reasons.

The engine starts and stops

When four attempts are made to start the engine, but the engine continues to stall, this may be due to the following reasons:

The car does not use a bypass module for the standard engine blocker. The fact is that the presence of an immobilizer does not allow an automatic start, which is why the internal combustion engine cannot start. Therefore, the manufacturer of security systems warns consumers about the need to install this device.
The processing unit cannot read the tag from a key or key fob. Malfunction of the transponder can be due to various reasons, ranging from a software malfunction to a discharged battery.
During installation, the security system was not connected to the electrical circuits for controlling the operation of the power unit. To solve the problem, you need to check the circuit and connect the missing components.

Incorrect setting of alarm unit operating modes

If a machine with Starline A91 installed does not start, the reason may be that the operating modes of the processor module are incorrectly configured. When the engine starts, the security system will emit four beeps. If the vehicle is equipped with a manual transmission, then the problem lies in the fact that the consumer has not adjusted the program neutral. The Starline developer has implemented a system for preparing the power unit and gearbox for launch; it may differ depending on the model.

The Stas World channel spoke about the correct configuration of the remote start function by temperature, timer and alarm clock.

Damage or failure of the key fob

If the automatic start option does not work from the remote control, you need to check the status of the device.

There may be several reasons for a communicator not working:

the battery is discharged, you will have to replace it, in newer versions of Starline the signaling system writes about the imminent discharge of the battery on the transmitter display;
If the device is damaged due to a fall or exposure to water, the device will have to be disassembled and repaired;
There is a hardware malfunction in the operation of the remote control, detailed diagnostics and, possibly, its re-flashing will be required.

Errors when installing alarms

Problems that may arise as a result of long-term use or incorrect installation of the security system:

The motor control circuit is incorrectly connected. On most Starline models, a black-gray contact is responsible for this. The device is connected to the tachometer or the lamp of the generator device. If the circuit is not connected, an attempt to remotely start the signal will activate the starter device and ignition. When the starter turns, the communicator display will show an engine start indicator, although in fact the engine does not start.
Poor contact between the security system and the power supply. It is necessary to diagnose electrical circuits and identify incorrectly operating sections.
When installing the security system, the consumer did not connect all the electrical circuits of the ignition and starter device. Depending on the design features of the car and car alarm system, several electrical circuits can be used to connect these systems. When connecting, please note that the signaling must correctly simulate the operation of the ignition switch.
If a crawler has been installed, but startup still does not occur, this may be due to the fact that the transponder installed in the module does not read the signal. To solve the problem, it is necessary to increase the number of turns in the coils of the lineman block. You also need to make sure that the installation of the coil on the lock was done correctly.

Malfunctions in the autostart operation may be due to the car’s battery being discharged; the problem can be solved by replacing the battery.

The Autozvuk channel talked about mistakes that should not be made when installing car security systems.

There is no automatic start based on temperature

If it is cold outside and the remote start option does not work, while the temperature controller is connected, the reasons may be as follows:

The temperature sensor was installed incorrectly. Depending on the signal, starting can be carried out according to the temperature of the engine or inside the car. Accordingly, the locations for installing the sensor may be different. The device is connected in accordance with the instructions.
The sensor has failed. This is typical for devices that have already served a decent period of time. To solve the problem, the controller will have to be replaced.
The controller is connected correctly, but the car owner has not configured the start of the internal combustion engine based on temperature on the pager display.

The StarLine car starts by itself

Some owners of Starline B9 car alarms complain that the alarm automatically starts the car at an inappropriate time, at an incorrect temperature, etc. In this regard, several procedures should be carried out:

remember if the battery in the remote control or the battery in the car has recently been changed. Because of the second point, the programming settings may be reset to standard, so the machine can start at -3 degrees with an estimated -17, for example;
and after replacing the battery, the time on the remote control gets lost. This means that the car does not start automatically at the hours when it is necessary. You need to configure the correct parameters for this function;
you should analyze the location of the temperature sensor, its serviceability and correct connection. The desired location is on the cylinder block cover, near the engine. Also, by pressing button four several times, you can see the current parameter readings. If dashes are sometimes written there, it means there is a break in the network or the temperature sensor itself needs to be replaced.

Decoding the icons on the Starline A94 keychain

In some cases, the problem can be solved on your own, but if the cause of the malfunction lies deep, then it is advisable to contact a service center, where professional installers will figure it out and set up the correct operation of the car alarm.

Diagnostics and troubleshooting

The first thing to do if a malfunction occurs in the autostart operation is to check the operation of the car battery and key fob.

Battery check

Battery diagnostics:

Perform a visual check of the battery. Inspect the terminals and body of the device. If the contacts are oxidized, they must be cleaned. If there are cracks in the case, the battery must be replaced, since it is impossible to fix such a problem.
Unscrew the jars of the device and check for the presence of electrolyte solution. If there is not enough liquid inside, you need to add distilled water to the jars.
You need to check the battery charge using a multimeter. To do this, connect the tester probes to the battery terminals, and then start the engine. If the charge level is less than 13.5 volts, the battery is replaced.

The Sxemotehnika channel talked about diagnosing a car’s battery in a garage.

Remote control diagnostics

Checking the communicator:

Inspect the device body. If there are traces of moisture or damage, the communicator will have to be disassembled.
If there are traces of water on the internal board, the device must be dried, but it should not be placed next to the stove or on the battery. This may cause more serious damage to your device.
Inspect the button contacts on the terminals, replace the buttons or re-solder them if necessary.
If your pager's battery is dead, it needs to be replaced.

Installing the crawler

The procedure for installing and connecting the immo bypass module is as follows:

Take the processor module and install the spare key with the mark into it. The device must be installed inside a flat antenna. After installation, the device is fixed in place from possible movement.
The housing of the processor device is closed.
The main module is being installed. Its installation must be done in a place inaccessible to a potential criminal. For example, you can install the device behind the center console, near the car radio or ashtray. You can install the device behind the dashboard. To do this, dismantle the steering column trim and remove the control panel by disconnecting the connectors with contacts from it and unscrewing the screws that secure it. The crawler module is securely fixed at the installation site.
The next step is to connect the device. The red pin represents the positive power output. It must be connected to an electrical circuit that has 12 volts when the ignition is activated. Disassemble the lock trim and connect the red contact.
The black contact represents the negative control input. When a negative potential is applied to it, the standard engine immobilizer begins to read information from the tag installed in the key or key fob. The black contact must be connected to the output of the engine remote start system.
All that remains is to connect the gray contacts. Depending on the configuration, they can be connected to an external frame-type antenna adapter, which is mounted next to the lock. Or you can wind the antenna or several turns of cable. Winding is carried out on top of the standard RFID adapter.

Bypass module connection card

Connection diagram for engine blocker crawler

temperature sensor

The controller can be installed in different places, depending on the type:

On the cooling system pipe. If the temperature sensor is installed on the engine, it must be embedded in one of the hoses of the cooling system. To do this, the pipe is dismantled, part of the refrigerant is drained, after which the device is installed inside. The wire with the connector for connecting it must be brought out. The connection is made to the processor module of the security complex.
Inside the car. The device can be placed anywhere. The main thing is that there are no heat sources nearby.

If starting the internal combustion engine by command from the key fob works, but the option does not function when set by temperature, you need to check the quality of the device connection. A cable with a connector leaves the device; the plug must be checked - if there is oxidation, it must be cleaned. You can also diagnose the electrical circuits connecting the device. If damaged wires are found, they must be replaced.

The kakbivotbi channel showed the process of repairing a temperature controller using the example of the Starline D94 security complex.

Other symptoms of engine failure due to alarm

Before going to a car service center, you can try to fix the problem yourself, which is manifested by the lack of startup after the alarm rings. Perhaps the reason is so banal that finding it will not be difficult.

Inspect the contacts and all wires of the central unit. Oxides formed due to chemical reactions of dissimilar metals and water conduct microcurrents very poorly. Oxidation can be cleaned with a soft metal brush and treated with a water-repellent liquid. Inspect the wire that has fallen out of the connector (the metal retainer may be broken or pressed too hard against the connector) and try to repair or replace it.
Check whether the relay clicks when arming or disarming. If the relay does not operate, replace it with a new one.
If the wiring from the central unit is shorted, check the mounted fuses located near the central unit.
When the alarm goes off, and this is manifested by incorrect operation of the central locking or the absence of flashing headlights or emergency lights, it is necessary to check the fuses of the corresponding electrical circuits and the switching relay.

An alarm system is a complex technical product and finding its malfunction is not easy. Sometimes at service stations, specialists get together and hold a consultation, solving the problem of why the security system blocks the engine from starting. The main thing is that if such a malfunction occurs, the car owner makes the right decision and either acts independently or contacts specialists.

Dependence of engine starting on air temperature

If the car’s power unit does not start the first time in cold weather, the reasons may be:

The power contacts on the security system have been damaged or oxidized. As a result, the contact elements do not allow maintaining the required voltage level in the electrical circuit.
The car battery is discharged, as a result of which the starter device cannot crank the crankshaft.
A gap appeared in the ignition circuit, for example, for additional protection against car theft.
The reason for incorrect operation in negative temperatures may be due to incorrect operation of the blocker bypass module.

If the automatic start option stops functioning in the cold or in other weather conditions, it is necessary to diagnose the possibility of starting the unit normally, using the key. If the engine was able to start the first time, then the problem should be sought in the operation of the anti-theft complex. After diagnosing all potentially problem areas, it is necessary to check the cross-section of the electrical circuits. The thickness and length of the wires must correspond to the cables that are used to connect the security system.

Disabling locks using the service button in the cabin

If there are no signs of unintentional activation of the locks, 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 , 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.

Features of autostart on a car with a manual transmission

If a car with a manual transmission does not start from Starline autostart, the problem may lie in incorrect actions performed by the driver, we are talking about setting the program neutral option.

To enable this feature:

Stop the car, but do not turn off the ignition.
Place the transmission selector in neutral and pull the handbrake to lock the vehicle in place. It is important that the parking brake works well; the car should not roll after it is turned on.
Click on the first button of the communicator and hold it for three seconds. The pager speaker will play one melodic tone. Within thirty seconds you should be able to complete the next two steps.
Turn off the ignition by turning the key in the lock to the Off position, then remove it. If the setting is correct, the motor will continue to run.
Get out of the car and close the car doors. When the last door is locked, the power unit should turn off on its own. The security function will also be automatically activated.

The Positive Negative channel, using the example of a Lada Vesti car, showed the procedure for setting up the program neutral option with the Starline security system.

If the remote start option does not work after setting the soft neutral, the reasons may be:

the security system does not record the opening or closing of door locks, since the system was installed incorrectly, you will have to check the circuit and reconnect the system;
The limit switches installed on the doors do not function; the devices must be replaced.

The general principle of operation of autostart alarms Starline of different models

The automatic start system of Starline A91, A92, when sending a command from the remote control, works according to the following principle:

The ignition system duplication relay turns on. For a car, when you try to start it, this is the same as starting the engine with a key or button. The duration of the relay operation may differ depending on how the power unit is started - “cold” or “hot”. In the first case, at low air temperatures, the interval will be longer.
The anti-theft complex establishes communication with the engine blocker bypass module. The device automatically starts working and transmits a signal to simulate the presence of a chip.
A few seconds later, the first attempt is made to start the power unit. This happens after the glow plugs warm up and the fuel pump starts.

The following actions are determined by the settings of the “alarm” of Starline A91, A93 or another model. The system will rotate the car's starter mechanism for a time configured by the user. Gap data can be read via a digital interface.

If the anti-theft complex was connected using the analog method, then subsequent actions are determined by pulses:

increasing the frequency of signals at the tachometer input;
voltage generation in the vehicle's electrical network;
increase in voltage.

The “VanGog Life” channel, using the example of a Renault Capture car, spoke about the principle of operation of the automatic engine start system.

Dependence of engine starting on air temperature

If it is cold outside, the engine can start automatically according to the ambient temperature level. For this, power units are equipped with special sensors that are mounted on the cylinder block or other metal surface adjacent to the engine. Also, the start can be implemented in accordance with the readings of the temperature controller built into the control unit.

Operating principle:

The user configures the sensor to autostart at a certain temperature. For example, at -20 degrees. At the time of changing the parameters, this value is about -10 °C or any other value other than -20.
The ambient temperature changes while the vehicle is parked. When this value decreases to -20 degrees, the sensor sends a corresponding signal to the alarm control unit.
The microprocessor module activates the ignition system relay, which leads to the engine starting.

Features of autostart on a car with a manual transmission

If the power unit with a manual transmission does not start, this may be due to the fact that the user has not programmed “soft neutral”.

In practice, the problem when a Starline A94 or another alarm model does not start the engine the first time is usually due to a lack of preparation of the car.

To solve this problem, perform the following steps:

A vehicle with the engine running stops, but the ignition does not turn off.
The gear lever is moved to the neutral speed position. The parking brake handle is raised, it should be working. If the vehicle rolls while parked, it may cause an accident.
On the alarm remote control, press key 1 and hold it for three seconds. The communicator should sound a melody. Over the next 30 seconds, the driver leaves the passenger compartment and turns off the ignition.
The key is removed from the lock; the engine should not stall yet. The user locks all doors, after which the engine will stop. The protection mode will turn on and the vehicle will be prepared for automatic start.

Triple flashing of car alarm instead of autostart

If the car's side lights blink three times, this indicates that the voltage in the car's electrical network has decreased; the problem may be related to:

a dead or faulty battery;
using electrical circuits for connecting signaling that are too long or have a small cross-section;
acidification of the battery terminals.

For each of the reasons described, a voltage drop occurs in the on-board network of the machine, and this parameter decreases quickly when the load is turned on. Therefore, if you decide to diagnose the potential difference at the battery terminals, it is not a fact that you will be able to detect this problem. To get rid of the malfunction, you need to visually check all the plug pads, especially attention should be paid to the power electrical circuits. If the diagnostics do not show the presence of oxidation, then you need to make sure that wires with the correct cross-section are used. If you change electrical circuits, use a soldering iron to make connections.