1. Fuse AM2 (30A); 2. Fuse IGN (7.5A); 3. Fuse AM2-2 (7.5A); 4. Body electronic control module; 5. Fuse ACC-V (25A); 6. Fusible link ALT (120A); 7. Fuse IG2 (15A); 8. ST relay; 9. ACC relay; 10. IG1 relay; 11. IG2 relay; 12. Starter cut relay; 13. Battery; 14. Starter motor; 15. Selector lever switch; 16. ST CUT relay.

The immobilizer system in a Toyota Rav 4 is designed to prevent unauthorized use of the vehicle. It works by using a transponder key that has a microchip with a unique code that matches the code stored in the immobilizer system. When the key is inserted into the ignition and turned to the “On” position, the system sends a signal to the key to request its code. If the code matches, the immobilizer system allows the engine to start. If the code does not match or the system cannot detect the key, the engine will not start.

The immobilizer system also has a security indicator light on the dashboard that flashes to indicate that the system is active. This light will turn off once the engine is started and the system recognizes the key.

If the key is lost or damaged, a new key will need to be programmed to the immobilizer system in order to start the engine. This can be done by a Toyota dealership or a qualified locksmith with the necessary equipment.

It is important to note that attempting to start the engine without a programmed key can cause the immobilizer system to activate, which will prevent the engine from starting. If the security indicator light is flashing, it is an indication that the immobilizer system has been activated and the vehicle will need to be towed to a Toyota dealership or a qualified repair facility for diagnosis and repair.

Toyota Rav4 Immobiliser Reset

Resetting the immobilizer system on a Toyota RAV4 typically requires using a registered master key. Here are the general steps:

1. Insert the registered master key into the ignition cylinder and turn it to the “On” position (do not start the engine).
2. Within 10 seconds of turning the key to “On,” press and release the accelerator pedal 5 times.
3. Within 20 seconds, remove the master key from the ignition.
4. Within 10 seconds of removing the key, insert the new key you want to register and turn it to the “On” position.
5. Wait for 10 seconds or until the security light stops flashing.
6. Remove the new key from the ignition.

If the security light continues to flash, the key may not be registered properly or there may be an issue with the immobilizer system that requires further inspection by a qualified technician.