Symptom Chart: PATS

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this service information assumes a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to DIAGNOSTIC METHODS for information about these practices.

SYMPTOM DESCRIPTION - PATS

Condition	Possible Sources	Actions
The engine only starts with the key in the backup slot and no DTCs present	Intelligent Access (IA) key battery Intelligent Access (IA) programmable parameter	ATTEMPT to start the engine using 2 different Intelligent Access (IA) keys, one at a time. Place an Intelligent Access (IA) key on top of the center console and push the start/stop switch and brake.
The vehicle does not start with the Intelligent Access (IA) key in certain areas within the vehicle	Wiring, terminals or connectors Front passive start antenna Center passive start antenna Rear passive start antenna RFA module	GO to PINPOINT TEST D .
The engine does not start or unable to turn ignition on	Starting system concern Driveability concern PATS concern	GO to PINPOINT TEST E .
STARTING SYSTEM FAULT is displayed in the message center	PATS concern	RETREIVE and DIAGNOSE all PATS DTCs in the BCM , RFA module, and PCM . REFER to the RELATED MODULE DTC CHARTS .
NO KEY DETECTED is displayed in the message center	Environmental interference Intelligent Access (IA) key Intelligent Access (IA) key battery Intelligent Access (IA) key not programmed	GO to PINPOINT TEST F .