Normal Operation
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The Remote Function Actuator (RFA) module uses the backup transceiver to operate the Passive Anti - Theft System (PATS) in the event of a failure of any passive start antenna, the battery in the Intelligent Access (IA) key, or a communication concern with the Tire Pressure Monitor (TPM) module. The backup transceiver is also used for IA key programming.
The backup transceiver receives voltage and ground directly from the RFA module. The RFA module controls the backup transceiver through the dedicated clock and data circuits.
DTC DESCRIPTION
| DTC Description | Fault Trigger Conditions |
|---|---|
|
A continuous memory and on-demand DTC that sets when the backup transceiver voltage supply circuit is shorted to ground. |
|
A continuous memory and on-demand DTC that sets when the backup transceiver voltage supply circuit is shorted to voltage. |
|
An on-demand DTC that sets when the backup transceiver signal is not received by the RFA module. |
|
A continuous memory and on-demand DTC that sets when the backup transceiver cannot be initialized by the RFA module. |
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Backup transceiver
- RFA module