Symptom Chart

WARNING: This page is about a different car, the 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
A single/more than one door lock is inoperative	Door lock control switches Door lock actuator Door lock hardware Circuitry Vehicle security module	GO to PINPOINT TEST E .
The doors do not lock/unlock using the remote keyless entry keypad	Remote keyless entry (RKE) keypad Vehicle security module	GO to PINPOINT TEST F .
The doors do not lock/unlock using the remote keyless entry transmitter	Remote keyless entry (RKE) transmitter battery RKE transmitter RKE transmitter programming Aftermarket system High power devices TV/radio transmission towers Vehicle security module	GO to PINPOINT TEST G .
The auto-lock does not operate correctly	Door ajar switches UART-based protocol (UBP) communications network Vehicle security module	GO to PINPOINT TEST H
Panic feature is inoperative/does not operate correctly	Remote keyless entry (RKE) transmitter Circuitry Vehicle security module	GO to PINPOINT TEST I .
The remote keyless entry keypad illumination is inoperative	Remote keyless entry (RKE) keypad Vehicle security module	GO to PINPOINT TEST J .
The remote keyless entry transmitter is out of synchronization	Remote keyless entry (RKE) transmitter Vehicle security module RKE transmitter button pressed a substantial amount of times while outside the range of the vehicle	GO to PINPOINT TEST K .
The power door unlock inhibit feature is inoperative	Feature not enabled	ENABLE the feature.
The power door unlock inhibit feature is inoperative	Vehicle security module	INSTALL a new vehicle security module. REFER to MULTIFUNCTION ELECTRONIC MODULES .
The smart unlock does not operate correctly	Door lock control switches Driver door ajar switch UART-based protocol (UBP) communications network Key-in-ignition switch Vehicle security module	GO to PINPOINT TEST L .
The remote keyless entry transmitter has poor range performance	Aftermarket system High power devices TV/radio transmission towers Remote keyless entry (RKE) transmitter Vehicle security module	GO to PINPOINT TEST M .