Symptom Chart

WARNING: This page is about a different car, the 2005 Lincoln LS. 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 front electronic module (FEM)	FEM Circuitry	REFER to MULTIFUNCTION ELECTRONIC MODULES .
No communication with the rear electronic module (REM)	Circuitry REM	REFER to MULTIFUNCTION ELECTRONIC MODULES .
No communication with the driver door module (DDM)	Circuitry DDM	REFER to MULTIFUNCTION ELECTRONIC MODULES .
The anti-theft system does not operate correctly - lights flash 5 times when arming the system	Anti-theft hood switch Luggage compartment lid ajar switch Door ajar switch(es) Circuitry Front electronic module (FEM) Rear electronic module (REM)	GO to PINPOINT TEST A .
The anti-theft system does not operate correctly - alarm does not activate with door ajar	Circuitry Door ajar switch(es) Front electronic module (FEM) Rear electronic module (REM)	GO to PINPOINT TEST A .
The alarm system does not arm/disarm - using the driver door arm/disarm switch	Driver door arm/disarm switch. Circuitry Driver door module (DDM)	GO to PINPOINT TEST B .
The alarm system does not arm/disarm - using the remote keyless entry transmitter	Remote keyless entry (RKE) transmitter Driver door module (DDM)	GO to PINPOINT TEST C .
Battery voltage out of range - Front electronic module (FEM)	Circuitry FEM	GO to PINPOINT TEST D .
Battery voltage out of range - Rear electronic module (REM)	Circuitry REM	GO to PINPOINT TEST E .
Battery voltage out of range - Driver door module (DDM)	Circuitry DDM	GO to PINPOINT TEST F .
The alarm system does not operate correctly - alarm does not activate with hood ajar/open	Circuitry Anti-theft hood switch Front electronic module (FEM)	GO to PINPOINT TEST G .
The alarm system does not operate correctly - luggage compartment lid disarm switch	Circuitry Luggage compartment lid disarm switch Rear electronic module (REM)	GO to PINPOINT TEST H .
The alarm system does not operate correctly - alarm does not activate when the luggage compartment is armed and opened	Circuitry Luggage compartment lid ajar switch Rear electronic module (RENT)	REFER to INTERIOR LIGHTING .