Understanding your Ford key’s components is crucial, especially the transponder chip’s location. This guide provides a detailed overview of Ford transponder keys, their functionality, and how to identify the correct key for your Ford Ranger. We’ll explore the different key types, their compatibility, and provide valuable resources for further information.
Ford’s Passive Anti-Theft System (PATS) Explained
Ford’s Passive Anti-Theft System (PATS), also known as Securilock, utilizes a transponder chip embedded within the key head. This chip communicates with the vehicle’s computer to authorize engine starting. When you insert the key, the system sends a radio frequency (RF) signal to the transponder. The chip responds with a unique RF signal, verifying the key’s authenticity and allowing the engine to start. This process happens seamlessly in milliseconds.
Different PATS versions exist:
- PATS I: Introduced in 1996 on select Ford and Lincoln Mercury models.
- PATS II: Implemented in all PATS-equipped Ford vehicles starting in the 1999 model year. Some 1998 models featured a transition to PATS II.
Identifying Your Ford Ranger Key
Ford keys, often manufactured by Strattec or Huf, are typically stamped with an identifier:
- Strattec: “S” (40-bit) or “SA” (80-bit) above the blade’s milling.
- Huf: “H” (40-bit) or “HA” (80-bit).
Understanding these markings and the key type is vital for replacement.
Common Ford Key Types:
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H72-PT: Early 40-bit transponder key. Not replaceable with H84-PT or H92-PT. Used in some early PATS systems. Diagram Ford Key Chip Location: embedded in the plastic head.
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H84-PT & H92-PT: The H92-PT (80-bit) is backward compatible with vehicles using the H84-PT (40-bit). Visually similar, neither replaces the H72-PT. Diagram ford key chip location: embedded in the plastic head.
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IKT (Integrated Keyhead Transmitter): Combines keyless entry remote with the transponder key. Replaceable with H92-PT. Diagram ford key chip location: embedded in the plastic head of the key fob.
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H-86 Service Key: Lacks a transponder chip; performs all functions except starting the engine.
Ford Ranger Key Compatibility Chart
| Year(s) | Key Type(s) | PATS Version |
|---|---|---|
| 2001 – 2012 | H92-PT (40/80-bit) replaces H84-PT (40-bit) | II & up |
| 2001 – 2010 | H84-PT (40-bit only) | II & up |
| 1999 – 2000 | H72-PT (40-bit) | I |
| 1998 – 2001 | H75 (Non-transponder) for 2.5L SOHC Lima engines | N/A |
| 1996 – 2000 | H75 (Non-transponder) | N/A |
| 1994 – 1996 | H67 (Non-transponder) | N/A |
| Some 1993 | H54 (Non-transponder) | N/A |
| 1980 – 1995 | H50 (Non-transponder) | N/A |
| Some 1980-1992 | H51 (Non-transponder) | N/A |
Cloning vs. Programming Keys
- Cloning: Duplicates an existing key’s transponder data onto a blank key.
- Programming: Adds a new, unique key code to the vehicle’s computer. Requires specialized equipment. Often necessary when adding a third key to a system with two cloned keys.
Conclusion
Identifying the correct transponder key for your Ford Ranger is essential. This guide provides the necessary information to understand PATS, key types, and compatibility. For a deeper understanding of PATS programming, consult a qualified locksmith or refer to resources like the linked PDF. Remembering the key chip’s location within the key head aids in visual identification and replacement.
