Description And Operation: Anti-Theft: Notes

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

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)
Encoded (the key contains a transponder) ignition PATS keys (not factory-equipped, but can be used in place of IKT keys)
PATS transceiver
IC
Transmission Control Module (TCM)

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

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. These additional keys start the vehicle, but do 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 article, the PATS portion of the IKT key is referred to as a PATS key.