Theft Deterrent Horn Circuit

Theft Deterrent Horn Circuit

CIRCUIT DESCRIPTION

When the theft deterrent system is activated, the relay in the ECU turns ON and OFF in approximately 0.2 sec. cycles, causing the theft deterrent horn to blow (See the wiring diagram).

In this condition, if any of the following operations is done, the relay in the ECU turns OFF, thus stopping the theft deterrent horn from blowing:
1. Unlock the front LH or RH door with a key.
2. Turn the ignition switch to IG or ON position.
3. Unlock the doors with the wireless door lock control system.
4. Wait for approximately 60 seconds.

Wiring Diagram:

Step 1 - 3:

INSPECTION PROCEDURE