Warning Signs
- Your car alarm goes off for no reason.
- Your car won't start, even though the battery is good.
- The security light on your dashboard stays on or flashes.
- Your car's anti-theft system seems to be malfunctioning.
- You experience problems with remote keyless entry.
Testing the Theft Control Module
It can be tricky to know if the theft control module is the problem. A mechanic can use a special scan tool to read codes from the car's computer. These codes can point to problems with the module or other parts of the security system. They might also check the wiring and connections to the module. Sometimes, problems with the key or the ignition switch can cause similar issues.
Common Failure Causes
- Water damage from leaks in the car.
- Electrical surges or shorts in the car's wiring.
- Old age and normal wear and tear.
- Problems with other parts of the security system.
- Physical damage from an accident.
