Component Description

WARNING: This page is about a different car, the 2018 Ford EcoSport. However, it is still accessible from the selected car via links, so may be relevant.

BCM

If the BCM is replaced, program at least 2 keys and perform the parameter reset procedure.

The BCM requires PMI when it is replaced.

Keyless Entry Rear Antenna

NOTE: Some brands/types of mobile phone or laptop computer chargers may cause interference that could lead to a PATS concern if the passive key is within a few inches of the charger and the "No Key Detected" message displays in the message center. If a concern is observed, move the passive key away from the charger and attempt to transition the ignition on.

The keyless entry rear antenna is wired to the BCM. When activated by the BCM, it transmits a low frequency signal that activates a passive key.

A programmed passive key must be within the passenger compartment or cargo area for the PATS to detect the passive key and allow the ignition to transition from OFF to ON.

If a passive key is placed in the far outside edges of the interior, such as the far corners of the passenger compartment or cargo area, the vehicle can experience a PATS concern. If the passive key is located in one of these areas and there is a PATS concern, move the passive key out of the area and attempt to transition the ignition on. If the key is outside the range of the keyless entry rear antenna, PATS center antenna, and PATS front antenna when the START/STOP button is pressed, the No Key Detected message displays in the IPC message center.

Passive Key

NOTE: Some brands/types of mobile phone or laptop computer chargers may cause interference that could lead to a PATS concern if the passive key is within close proximity of the charger. If a concern is observed, move the passive key away from the charger and attempt to turn the ignition on.

The passive key incorporates both the PATS and the RKE transmitter functions in a single device. The passive key must be located inside the vehicle for the ignition to transition from OFF to ON and on the outside for keyless entry features. During key programming procedures, the PATS and the RKE transmitter of the passive key are both programmed into the BCM. The vehicle accepts programming of up to 4 passive keys.

The passive key receives the low frequency signals from the PATS center antenna, PATS front antenna, and keyless entry rear antenna. When the passive key is activated by one of the low frequency signals, it sends out a high frequency signal that is received by the BCM. The passive key must be located inside the vehicle for the ignition to transition from OFF to ON and outside the vehicle for passive entry features.

The passive key also contains a removable key blade that unlocks the driver door in the event of an electrical failure (such as a drained battery).

The passive key requires 1 battery. For battery replacement instructions, refer to the Owner's Manual.

For backup starting, refer to "Backup Starting" in this service information.

PATS Center Antenna

NOTE: Some brands/types of mobile phone or laptop computer chargers may cause interference that could lead to a PATS concern if the passive key is within a few inches of the charger and the No Key Detected message displays in the message center. If a concern is observed, move the passive key away from the charger and attempt to transition the ignition on.

The PATS center antenna is wired to the BCM. When activated by the BCM, it transmits a low frequency signal that activates a passive key. This antenna serves a dual purpose in that it can detect a passive key in the backup starting location. The backup starting location is used to program passive keys and to detect a programmed passive key in the event the battery in the programmed passive key has failed.

A programmed passive key must be within the passenger compartment or cargo area for the PATS to detect the passive key and allow the ignition to transition from OFF to ON.

If a passive key is placed in the far outside edges of the interior, such as above a sun visor or in a door map pocket, the vehicle can experience a PATS concern. If the passive key is located in one of these areas and there is a PATS concern, move the passive key out of the area and attempt to transition the ignition on. If the key is outside the range of the keyless entry rear antenna, PATS center antenna, and PATS front antenna when the START/STOP button is pressed, the No Key Detected message displays in the IPC message center.

PATS Front Antenna

NOTE: Some brands/types of mobile phone or laptop computer chargers may cause interference that could lead to a PATS concern if the passive key is within a few inches of the charger and the No Key Detected message displays in the message center. If a concern is observed, move the passive key away from the charger and attempt to transition the ignition on.

The PATS front antenna is wired to the BCM. When activated by the BCM, it transmits a low frequency signal that activates a passive key.

A programmed passive key must be within the passenger compartment or cargo area for the PATS to detect the passive key and allow the ignition to transition from OFF to ON.

PCM

When the PCM is replaced, perform the parameter reset procedure. There is no need to program keys if the PCM is replaced.

The PCM requires PMI when it is replaced.