In VAZ cars produced with injection engines, an anti-theft device is installed - an immobilizer. In the event of an attempt to start the engine unauthorized, it blocks the power plant without giving any acoustic signals.
Necessary
enter the unlock code
Instructions
Step 1
Initially, from the manufacturer, the cars go on sale with untrained immobilizers and with three keys: two black and one red. Training of the specified equipment is carried out during the sale by the dealer or the owner of the car independently. For this purpose, the red "master key" is used.
Step 2
The immobilizer operation algorithm is simple, like everything ingenious. Based on the data obtained when reading information from the working (black) key, it sends a command to the ECU to start the engine, or vice versa, blocks the ignition and fuel systems, in cases of an unauthorized attempt to start the engine.
Step 3
The immobilizer includes blocks: control and software, with a system of keys and locks. During operation, radio frequency codes are exchanged between them at a certain time interval, and if an incorrect signal is received, a command is sent to the ECU to block the engine. The reason for the sudden stop of the engine can be a conversation on a mobile phone, driving under a high-voltage line, a lightning discharge during bad weather, etc.
Step 4
The immobilizers installed by the domestic auto industry caused so many complaints from the owners that the manufacturers decided to take an unprecedented step in world history and expanded the functionality of the specified equipment. Enriching it with an alternative engine start bypassing the software, by introducing an emergency code, which is carried out by repeatedly pressing the accelerator pedal in a specific sequence.
Step 5
To summarize the above, in order to unlock the engine, it will be necessary to use the red “master key” and retrain the immobilizer, or press the gas pedal many times with a certain sequence with the ignition on.
