Symptom Chart

WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
No communication with the smart junction box (SJB)	Fuse(s) Circuitry SJB	REFER to MODULE COMMUNICATIONS NETWORK .
The alarm system does not disarm - from the driver door	Circuitry Driver door disarm switch (part of the driver door latch) SJB	Go to Pinpoint Test A .
The alarm system does not arm/disarm - using the integrated key head transmitter (IKT) key	IKT key IKT key battery SJB	Go to Pinpoint Test B .
The alarm system does not arm/disarm - using the keyless entry keypad	Keyless entry keypad SJB	If the keypad does not operate any of the locking/unlocking functions, REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . If the keypad operates all of the locking/unlocking functions, but the alarm does not arm/disarm using the keypad, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES . TEST the system for normal operation.
The alarm system does not operate correctly - alarm does not activate with hood ajar/open	Circuitry Hood switch SJB	Go to Pinpoint Test C .
The alarm system does not operate correctly - turn signals or horn do not cycle during anti-theft activation	Turn signal lamps Horn SJB	Go to Pinpoint Test D .