Anti-Theft - Passive Anti-Theft System (PATS)
Anti-Theft
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))
- Integrated Keyhead Transmitter (IKT) PATS (Passive Anti-Theft System) key(s) (the key contains a transponder and a Remote Keyless Entry (RKE) transmitter)
- PATS (Passive Anti-Theft System) transceiver
- IC (Instrument Cluster)
- PCM
PATS (Passive Anti-Theft System) 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 Huf IKT (Integrated Keyhead Transmitter) key. If replacing an IKT (Integrated Keyhead Transmitter) key, it is recommended that the original Huf IKT (Integrated Keyhead Transmitter) key be replaced with another Huf IKT (Integrated Keyhead Transmitter) key. There are minor visual differences both externally and internally between the Huf IKT (Integrated Keyhead Transmitter) key and IKT (Integrated Keyhead Transmitter) keys used on other vehicles that may be noticed by the customer. These visual differences does not affect the IKT (Integrated Keyhead Transmitter) key functionality in any way. Rotunda should supply a Huf IKT (Integrated Keyhead Transmitter) key when ordering replacement/new keys for this vehicle. The Owner's Literature may provide additional information concerning these differences. If replacing an IKT (Integrated Keyhead Transmitter) key (or adding another key) with a standard PATS (Passive Anti-Theft System) key (not an IKT (Integrated Keyhead Transmitter) key), any of the brands (Ford, Rotunda, Strattec or Huf) operates the PATS (Passive Anti-Theft System), but not the RKE (Remote Keyless Entry) system.
The vehicle is equipped with 2 IKT (Integrated Keyhead Transmitter) PATS (Passive Anti-Theft System) keys. The IKTs (Integrated Keyhead Transmitters) operate as a standard PATS (Passive Anti-Theft System) key with an RKE (Remote Keyless Entry) transmitter incorporated into the keyhead. The IKTs (Integrated Keyhead Transmitters) require batteries for the RKE (Remote Keyless Entry) transmitter to operate. A maximum of 4 IKT (Integrated Keyhead Transmitter) keys can be programmed to operate the vehicle. If more than 4 IKT (Integrated Keyhead Transmitter) keys are programmed, the Remote Keyless Entry (RKE) portion of the additional keys do not operate and the SJB (Smart Junction Box) (and the IC (Instrument Cluster)) sets a memory full DTC B1138. These additional keys start the vehicle, but cannot operate the RKE (Remote Keyless Entry) system. If additional PATS (Passive Anti-Theft System) keys are desired, a standard PATS (Passive Anti-Theft System) key (a non-IKT (Integrated Keyhead Transmitter) key) can be used. For the purposes, the PATS (Passive Anti-Theft System) portion of the IKT (Integrated Keyhead Transmitter) key is referred to as a PATS (Passive Anti-Theft System) key.
Passive Anti-Theft System (PATS) Function
NOTE: If the IC (Instrument Cluster) or the PCM (or both) is replaced, the parameters must be reset in both modules or the vehicle experiences a PATS (Passive Anti-Theft System) no-start. Refer to Passive Anti-Theft System (PATS) Parameter Reset .
NOTE: When using the Integrated Diagnostic System (IDS), the IC (Instrument Cluster) and the PCM parameters are reset at the same time.
The PATS (Passive Anti-Theft System) function is controlled by the IC (Instrument Cluster). PATS (Passive Anti-Theft System) uses the IC (Instrument Cluster) to carry out all of the PATS (Passive Anti-Theft System) functions such as receiving the identification code from the PATS (Passive Anti-Theft System) key, sending a signal to the PCM to control the starter and fuel injectors enable, and initiating the key interrogation sequence when the ignition key is turned to the ON or START position. Because of the interaction between the IC (Instrument Cluster) and the PCM, there are parameters that must be set if the IC (Instrument Cluster) or the PCM (or both) is replaced. Refer to Passive Anti-Theft System (PATS) Parameter Reset . All elements of PATS (Passive Anti-Theft System) must be functional before the vehicle starts. If any of the components are not working correctly, the vehicle cannot start. If the IC (Instrument Cluster) must be replaced for any reason (PATS (Passive Anti-Theft System) concerns or IC (Instrument Cluster) concerns), the PATS (Passive Anti-Theft System) keys must be programmed into the new IC (Instrument Cluster). Refer to Integrated Keyhead Transmitter (IKT) Key Programming Using Diagnostic Equipment .
PATS (Passive Anti-Theft System) is active only for a few seconds when the vehicle is starting. It is not a PATS (Passive Anti-Theft System) concern if the vehicle stalls after it has been running for a minimum of 3 seconds. PATS (Passive Anti-Theft System) does not disable a running vehicle.
PATS (Passive Anti-Theft System) may cause a vehicle no start due to either the fuel injectors or the starter not operating, or both. Always check for PATS (Passive Anti-Theft System) DTCs from the IC (Instrument Cluster) and the PCM when a no-crank or no-start condition exists. A low state of charge in the vehicle battery may cause PATS (Passive Anti-Theft System) to allow the starter to crank the engine, but prevent the fuel injectors from operating. If the anti-theft indicator does not prove out (it may be either flashing or glowing steadily) and one (or both) of the previous conditions (fuel injectors and/or engine does not crank) are present, it may be due to a PATS (Passive Anti-Theft System) concern. If the anti-theft indicator proves out, it may not be a PATS (Passive Anti-Theft System) concern. If the anti-theft indicator does not illuminate at all, it may be an IC (Instrument Cluster) concern. GO to Symptom Chart. Symptom Related Diagnostic Procedures
The PATS (Passive Anti-Theft System) function uses the IC (Instrument Cluster) and the PCM to enable or disable the engine. All elements of PATS (Passive Anti-Theft System) must be functional before the engine is allowed to start. If any of the components are not working correctly, the vehicle cannot start. If there is a PATS (Passive Anti-Theft System) concern present, the IC (Instrument Cluster) sends a message to the PCM to not allow fuel injector operation and also not allow starter operation. If the vehicle starts and stalls, or the engine does not start at all, check the anti-theft indicator operation and if flashing or glowing, retrieve the DTCs from the IC (Instrument Cluster) and the PCM and follow the PATS (Passive Anti-Theft System) diagnostics.
PATS (Passive Anti-Theft System) is not compatible with aftermarket remote start systems, which allow the vehicle to be started from the exterior of the vehicle. These systems may reduce the security of the vehicle, and also may be the cause of no-start concerns. Remote start systems must be removed from the vehicle before any PATS (Passive Anti-Theft System) -related no-start concerns are investigated.
Factory Invoiced Accessory (FIA)
Vehicles may be equipped with a factory-invoiced dealer-installed remote start system that is a Factory Invoiced Accessory (FIA). The remote start fob for this system is a small device that is about half the size of a conventional RKE (Remote Keyless Entry) fob, but only has one button on it. If a remote start system is installed on the vehicle and the unlimited mode is not enabled, PATS (Passive Anti-Theft System) allows up to 7 PATS (Passive Anti-Theft System) keys to be programmed into the IC (Instrument Cluster). The remote start system uses up 1 of the 8 total PATS (Passive Anti-Theft System) keys that can be programmed into the IC (Instrument Cluster). The number of keys that are programmed into the PATS (Passive Anti-Theft System) can be determined by viewing the IC (Instrument Cluster) PID N_KEYCODE.
PATS (Passive Anti-Theft System) disables the vehicle from starting if there is:
- a damaged PATS (Passive Anti-Theft System) key.
- an unprogrammed PATS (Passive Anti-Theft System) key.
- a non-encoded (non-PATS (Passive Anti-Theft System)) key (a conventional key or a key without any electronics).
- damaged wiring.
- a damaged transceiver.
- a damaged IC (Instrument Cluster).
- a damaged PCM.
Unlimited Key Mode
PATS (Passive Anti-Theft System) contains a feature called unlimited key mode. This feature allows a customer to program more than 8 vehicle keys, if requested. Each vehicle in unlimited key mode is set up with a special unlimited transponder security key code. This allows all the customer vehicles to share the same mechanically cut keys. For an individual customer, any randomly selected security key that has been previously mechanically cut and electronically programmed to the vehicle is acceptable. Refer to Spare Key Programming - Unlimited Key Mode .
MyKey(TM) Feature
The MyKey(TM) feature allows a restricted driving mode to be programmed into one (or more) key(s) supplied with the vehicle or into any (PATS (Passive Anti-Theft System)) programmed spare key(s) to promote good driving habits. The MyKey(TM) is a restricted key for all consecutive key cycles until the MyKey(TM) restricted key is cleared. The remaining key(s) is referred to as an "administrator key" or admin key. There must always be at least one admin key. The IC (Instrument Cluster) does not allow the last admin key to be programmed into a MyKey(TM) restricted key. Both the admin key and the MyKey(TM) can be used to see how many MyKeys(TM) and admin keys are programmed to the vehicle, and how many total miles have been driven with the MyKey(TM) restricted key active.
When the MyKey(TM) feature is programmed, several features are modified including:
Standard Restricted Features
- NOTE: The standard restricted features below cannot be configured in any way.
Belt-Minder(R) chimes periodically with the audio system muted until the driver safety belt is buckled. If Belt-Minder(R) has been disabled when the admin key is in the ignition lock cylinder, Belt-Minder(R) still functions for the MyKey(TM) driver. Belt-Minder(R) cannot be disabled by the MyKey(TM) driver.
- Audible and visual low fuel warnings are issued when the programmed Distance To Empty (DTE) value is reached (typically 75 miles).
- The parking aid system (if equipped) cannot be turned off.
Optional Restricted Features
- NOTE: The optional restricted features below can be configured to the customer preferences.
The volume of the audio system can be programmed to limit the volume to 45% of maximum volume.
- Vehicle speed can be programmed to be limited to 130 km/h (80 mph). Audible and visual warnings are issued when the vehicle speed of 130 km/h (80 mph) is attained.
- Audible and visual warnings are issued when the preselected vehicle speed of 75, 90 or 105 km/h (45, 55 or 65 mph) is attained.
- The AdvanceTrac(R) always on feature can be configured on or off. If configured to always on, the traction control cannot be disabled by the MyKey(TM) driver.
Refer to Information and Message Center in the Description and Operation portion of Instrument Panel, Gauges and Warning Indicators for all of the MyKey(TM) system checks and system warning displays.
Refer to MyKey(R) Programming or to the Owner's Literature for MyKey(TM) programming information.
Check MyKey(TM) System Status
The vehicle system check provides the status of the following MyKey(TM) parameters:
- MYKEY DISTANCE- This odometer only tracks mileage when a MyKey(TM) is used. If mileage does not accumulate, the intended MyKey(TM) is not being used. The only way to reset this odometer to zero is by disabling the MyKey(TM). If this odometer is lower than the last time it was checked, the MyKey(TM) system has been cleared.
- MYKEY(S) PROGRAMMED- Indicates how many MyKeys(TM) are programmed to the vehicle. It can also be used to determine if a MyKey(TM) has been cleared.
- ADMIN KEYS PROGRAMMED- Indicates how many admin keys are programmed to the vehicle. It can also be used to determine if an additional spare key has been programmed to the vehicle.
Refer to the Owner's Literature for information on accessing the MyKey system status in the message center.
Using MyKey(TM) with Aftermarket Remote Start System
When using an aftermarket remote start system, the default settings recognize the remote start system as an additional admin key. If the remote start system has not been programmed as a MyKey(TM) and the driver is a MyKey(TM) driver, the driver could drive the vehicle using the remote start system as an admin key with no MyKey(TM) restrictions. If requested by the customer to resolve this concern, the aftermarket remote start system needs to be programmed as a MyKey(TM). For information on programming the aftermarket remote start system as a MyKey(TM), refer to MyKey(R) Programming .