Faulty Siren/Horn:
- The siren or horn responsible for producing the sound when the anti-theft system is armed may be defective or damaged. Check the siren/horn for any visible damage or signs of corrosion. Test the siren/horn by manually triggering the anti-theft system and see if it produces any sound. If it doesn't, the siren/horn may need to be repaired or replaced.
Anti-Theft Module Issue:
- The anti-theft module, also known as the security control module, may be malfunctioning or have a faulty connection. Check the module for any loose connections or damage. You may need to have the module diagnosed by a qualified mechanic or automotive electrician to identify any internal issues.
Door Switch/Sensor Problem:
- The door switch or sensor responsible for detecting when a door is opened might be faulty. Check the door switches and their wiring to ensure they are functioning properly. Test the door switches by manually pressing them and observing if they trigger the anti-theft system's sound and lights. If they don't, the door switches or sensors may need to be repaired or replaced.
Wiring Problems:
- There may be a break or fault in the wiring related to the anti-theft system. Carefully inspect the wiring for any visible damage or loose connections, especially around the door switches, siren/horn, and anti-theft module. Repair or replace any damaged or faulty wiring as needed.
Faulty Remote:
- While you mentioned the remote panic button works, it's still worth checking the remote itself. Ensure the remote's battery is properly functioning and making good contact with the terminals. If necessary, replace the battery with a new one.
If none of the above steps resolve the issue, it is recommended to seek assistance from a qualified automotive technician or locksmith who specializes in vehicle security systems. They can further diagnose the problem and provide the necessary repairs to restore the factory anti-theft system's proper functioning.
