Here's how it works:
* Transponder Chip in the Key: Your key fob (or key itself, depending on the trim level) contains a small transponder chip. This chip has a unique ID code.
* Receiver in the Ignition: The ignition switch contains a receiver that reads this ID code when the key is inserted.
* Engine Immobilization: If the code received from the key matches the code stored in the vehicle's computer, the engine is allowed to start. If the code doesn't match (wrong key, stolen key, damaged chip), the engine will not crank or start. The system essentially "immobilizes" the engine.
Limitations of the 1999 Ranger PATS system:
* Relatively Simple to Bypass (by today's standards): While a deterrent, older PATS systems like those found in 1999 Rangers are vulnerable to various theft techniques. Experienced thieves may be able to bypass it using specialized tools or techniques.
* No Alarm: The PATS system itself doesn't trigger an alarm; it simply prevents the engine from starting. A separate aftermarket alarm system would be needed for audible warnings.
* Key Issues: Lost or damaged keys can be a major problem, requiring specialized locksmith services to replace or reprogram the system.
In summary, the 1999 Ford Ranger's anti-theft relies on preventing the engine from starting unless the correct key (with the matching transponder chip) is used. While a useful deterrent, it's not foolproof by modern standards and should be supplemented with other security measures if you want stronger protection against theft.
