Immobilizer System Description

Immobilizer System Description

Key
- The transponder in the key has a registered ID number and performs an algorithmic transaction.

Coil
- The coil is located in the steering lock.

Immobilizer unit
- The immobilizer unit compares the ID number and the algorithmic verification method of the key with those registered in the immobilizer unit.
- When the ID number and the algorithmic verification method are verified, the immobilizer unit sends the code word to the PCM.
- When there is a malfunction in the immobilizer system, the immobilizer unit flashes the security light to indicate a malfunction.

PCM
- The PCM verifies the code word from the immobilizer unit with that stored in PCM memory.

System Operation

System Operation:

- This is a conceptual flowchart for understanding how the immobilizer system operates. It shows how the system decides whether or not to start the vehicle when the ignition switch is turned to ON position.