RFA Module

The RFA module stores the customer access key. The RFA module is the interface for all Phone as a Key activity.

The Ford Pass app communicates with the RFA module. The RFA module communicates with the BCM to complete the commanded function from the registered and authorized connected mobile device.

After a new RFA module is installed, there is no need to re-authorize the Phone as a Key system. The RFA module and the registered and authorized connected mobile device stores the subscription for the Phone as a Key. When the a new module is installed the new module must go through an initialization procedure. A Target ID Transfer process is initiated for the RFA module in order to transfer secure data and authenticate communications between the BCM and the RFA module. Once a RFA module is installed in the vehicle and power is detected the RFA module starts the initialization process with onboard modules such as BCM, and TCU, GWM, and the cloud-based Global Vehicle Management System.

If the RFA module is replaced, perform secure code unlock then carry out a PATS module initialization and a PMI. At the end of the installation, the vehicle owner's mobile device must be paired to the new module. Once the RFA module is replaced the customer must request a new customer access key through the Ford Pass mobile app and when received the customer needs to perform a basic check to make sure functionality is restored. The door code and vehicle PIN will also be lost. The customer will be required to set-up the backup passcode feature prior to using the back-up starting procedure for Phone as a Key. Until then the customer will have to rely on the PATS backup starting procedure. Refer to: Passive Anti-Theft System (PATS) - System Operation and Component Description . or Refer to: Passive Anti-Theft System (PATS) - System Operation and Component Description . with their RKE transmitter.