Symptom Chart: Anti-Theft - Perimeter

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

SYMPTOM CHART

Condition	Possible Sources	Actions
The alarm system does not activate from an unauthorized entry at the hood	Wiring, terminals or connectors Hood switch BCM	REFER to Diagnostic Routine A: The Alarm System Does Not Activate from an Unauthorized Entry at the Hood .
The alarm system does not activate from an unauthorized entry at a door or liftgate	Door ajar input	REFER to DIAGNOSTIC ROUTINE A : The Courtesy Lamps Do Not Illuminate With a Door Open.
	Liftgate ajar input	REFER to DIAGNOSTIC ROUTINE B : The Courtesy Lamps Do Not Illuminate With The Liftgate Open.
The alarm system does not arm/no turn signal flash confirmation	Door ajar input Hood ajar input Liftgate ajar input Turn signals Keyless entry keypad concern RKE transmitter concern BCM	REFER to Diagnostic Routine C: The Alarm System Does Not Arm or No Turn Signal Flash Confirmation .
No horn output during alarm activation	Horn	REFER to DIAGNOSTIC ROUTINE A : The Horn Is Inoperative.
No turn signal flash during alarm activation	Turn signals	REFER to DIAGNOSTIC ROUTINE R : One Turn Signal Lamp Is Inoperative Or Always On.
No courtesy lamp flash during alarm activation	Courtesy lamps	REFER to DIAGNOSTIC ROUTINE F : One Or More Interior Courtesy Lamps Are Inoperative.
False alarm activation	Door ajar input Hood switch input Liftgate ajar input Panic button pressed on an RKE transmitter A valid PATS key read is NOT received when the ignition is transitioned to RUN	An intermittent fault exists. MONITOR the BCM alarm event PIDs to identify and isolate the cause of the last alarm activation. Most Recent Alarm Trigger Event (ALARM_EVT_1) 2nd Most Recent Alarm Trigger Event (ALARM_EVT_2) 3rd Most Recent Alarm Trigger Event (ALARM_EVT_3) 4th Most Recent Alarm Trigger Event (ALARM_EVT_4)
All keys/ RKE transmitters lost, perimeter alarm activated, and unable to program new keys.	Customer lost all keys/ RKE transmitters	PROGRAM a RKE transmitter. REFER to REMOTE KEYLESS ENTRY (RKE) TRANSMITTER PROGRAMMING . UNLOCK the doors with the programmed RKE transmitter. PROGRAM the new keys. REFER to ERASE ALL KEYS AND PROGRAM TWO KEYS .