Theft Deterrent Horn Circuit

THEFT DETERRENT HORN CIRCUIT

CIRCUIT DESCRIPTION

When the theft deterrent system is activated, the relay in the ECU is turned ON and OFF at approximately 0.2 sec. interval, causing the theft deterrent horn to sound (See the wiring diagram).

In this condition, if any of the following operations is done, the relay in the ECU is turned OFF, stopping the theft deterrent horn from sounding:

1. Unlock the driver door with key.
2. Turn the ignition switch to ON position.
3. Unlock the doors with the wireless door lock control system.
4. Wait for approximately 60 seconds.
5. Press the panic switch of the wireless door lock control system.

Wiring Diagram:

Step 1 - 2:

Step 3:

INSPECTION PROCEDURE

HINT: In case of using the hand-held tester, start the inspection from step 1 and in case of not using the hand-held tester, start from step 2.