1. Open your car's hood.
2. Locate the battery. It is usually a black box with two terminals, one positive and one negative.
3. Disconnect the negative terminal by loosening the nut or bolt that holds it in place.
4. Wait for at least 15 minutes. This will give the immobilizer time to power down.
5. Reconnect the negative terminal.
6. Try starting your car.
Method 2: Bypass Device Installation
1. Purchase a bypass device. There are many different types of bypass devices available, so choose one that is compatible with your car.
2. Locate the immobilizer unit in your car. This is usually located near the steering column or the dashboard.
3. Disconnect the immobilizer unit. This is usually done by unplugging a connector.
4. Connect the bypass device to the immobilizer unit. This is usually done by plugging in a connector.
5. Try starting your car.
Method 3: Recoding ECU Key
1. Disconnect your battery.
2. Remove your ECU and open the case carefully
3. Locate and remove the chip 93C46
4. Take a programmer which can communicate with the 93C46 chip and clone its content to another spare chip.
5. Once the cloning is successful take the spare chip and solder it back to the ECU.
6. Install your ECU back in the car, connect the battery terminals and start your car.
