Horns Does Not stop Sounding

1. Is the vehicle equipped with the optional security system?

Yes - Go to the next step.
No - Go to step 3.

2. Does the horn stop sounding when the security control unit connector is disconnected?

Yes - Replace the security control unit.
No - Go to the next step.

3. Does the horn stop sounding when the keyless entry harness connector (B) is disconnected?

Yes - Replace the radio.
No - Repair the horn circuit.

4. Is the vehicle equipped with the optional security system?

Yes - Go to the next step.
No - Go to step 6.

5. Does the horn stop sounding when the security control unit connector is disconnected?

Yes - Replace the security control unit.
No - Go to the next step.

6. Does the horn stop sounding when the keyless door lock control unit connector is disconnected?

Yes - Replace the keyless door lock control unit.
No - Repair the horn circuit.