2009 Mercury Sable Base, AWDFACTORY OEM SERVICE PROCEDURE

Description And Operation: Anti-Theft: Notes

NOTE: The smart junction box (SJB) is also known as the generic electronic module (GEM).

The passive anti-theft system (PATS) consists of the following components:

  • Anti-theft indicator (located in the instrument cluster [IC])
  • Encoded ignition integrated keyhead transmitter (IKT) PATS key(s) (the key contains a transponder and a remote keyless entry [RKE] transmitter)
  • PATS transceiver
  • IC
  • PCM

PATS uses radio frequency identification technology to deter a drive-away theft. Passive means that it does not require any activity by the user.

NOTE: This vehicle uses a Strattec IKT key. If replacing an IKT key for any of these vehicles, it is recommended that the original Strattec IKT key be replaced with another Strattec IKT key. There are minor visual differences both externally and internally between the Strattec IKT key and IKT keys used on other Ford, Lincoln, and Mercury vehicles that may be noticed by the customer. These visual differences will not affect the IKT key functionality in any way. Rotunda should supply a Strattec IKT key when ordering for this vehicle. The Owner's Literature may provide additional information concerning these differences. If replacing an IKT key (or adding another key) with a standard PATS key (not an IKT key), any of the brands (Ford, Rotunda, Strattec or HUF) will operate the system.

The vehicle is equipped with 2 IKT PATS keys. The IKTs operate as a standard PATS key with an RKE transmitter incorporated into the keyhead. The IKTs require batteries for the RKE transmitter to operate. A maximum of 4 IKT keys can be programmed to operate the vehicle. If more than 4 IKT keys are programmed, the RKE portion of the additional keys do not operate and the SJB (and the IC) sets a memory full DTC B1138 (Memory Full). These additional keys will start the vehicle, but will not operate the RKE system. If additional PATS keys are desired, a standard PATS key (a non-IKT key) can be used. For the purposes of this information, the PATS portion of the IKT key is referred to as a PATS key.

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