Symptom Chart

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
The alarm system does not activate from an unauthorized entry at the hood	Wiring, terminals or connectors Hood switch Body Control Module (BCM)	GO to PINPOINT TEST A .
The alarm system does not activate from an unauthorized entry at a door	Door ajar input	Refer to INTERIOR LIGHTING SYSTEM to diagnose the door ajar switch inputs.
The alarm system does not arm/no turn signal flash confirmation	Door ajar input Hood ajar input Turn signals Keyless entry keypad concern Remote Keyless Entry (RKE) transmitter concern BCM	GO to PINPOINT TEST C .
No horn output during alarm activation	Horn	REFER to HORN SYSTEM to diagnose the horn.
No turn signal flash during alarm activation	Turn signals	REFER to EXTERIOR LIGHTING SYSTEM to diagnose the turn signals.
No courtesy lamp flash during alarm activation	Courtesy lamps	REFER to INTERIOR LIGHTING SYSTEM to diagnose the courtesy lamps.
False alarm activation	Door ajar input Hood ajar input Panic button pressed on an IKT A valid Passive Anti-Theft System (PATS) key read is NOT received when the ignition is turned to RUN	An intermittent fault exists. MONITOR the BCM alarm event PIDs ALARM_EVT_1 through 4 to identify and isolate the cause of the last alarm activations.