Symptom Chart: PATS
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to Section 100-00, Diagnostic Methods for information regarding Ford-specific diagnostic practices.
Symptom Chart: 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 | RETRIEVE 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 |