Symptom Chart: Instrument Panel and Interior Switches Illumination

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Condition	Possible Sources	Action
All dimmable illumination does not dim or increase brightness using the dimmer control from the headlamp switch	Refer to Pinpoint Test	GO to Pinpoint Test A
All wired dimmable illumination sources are inoperative	Refer to Pinpoint Test	GO to Pinpoint Test B
All wired dimmable illumination sources are always on	Refer to Pinpoint Test	GO to Pinpoint Test C
All networked illumination is inoperative or does not dim or increase brightness	Refer to Pinpoint Test	REFER to: Communications Network .
One or more steering wheel switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test D
The ignition switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test E
The hazard flasher switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test E
The headlamp switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test E
The luggage compartment lid release switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test E
The parking brake switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test E
The heated seat switch (rear seat) illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test E
The overhead console illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test E
The rear interior lamp switch illumination is inoperative or always on	Rear interior lamp	INSTALL a new rear interior lamp.
The left front window control switch illumination is inoperative or always on	Left front window control switch	INSTALL a new left front window control switch. REFER to: Front Door Window Control Switch .
The right front window control switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test G
The left rear window control switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test H
The right rear window control switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test H
The left front door control lock control switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test F
The right front door lock control switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test G
The fuel filler door release switch illumination is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test F
The right front window control switch illumination is always on	Refer to Pinpoint Test	GO to Pinpoint Test I
The left rear window control switch illumination is always on	Refer to Pinpoint Test	GO to Pinpoint Test J
The right rear window control switch illumination is always on	Refer to Pinpoint Test	GO to Pinpoint Test J
The left front door control lock control switch illumination is always on	Refer to Pinpoint Test	GO to Pinpoint Test I
The right front door lock control switch illumination is always on	Refer to Pinpoint Test	GO to Pinpoint Test I
The fuel filler door release switch illumination is always on	Refer to Pinpoint Test	GO to Pinpoint Test I
The IPC illumination is inoperative or does not dim	Network communication concern IPC	Using a diagnostic scan tool, CARRY OUT a network test. If the IPC passes the network test, If the IPC does not pass the network test, REFER to: Communications Network .
The FCIM illumination is inoperative or does not dim	Network communication concern FCIM	Using a diagnostic scan tool, CARRY OUT a network test. If the FCIM passes the network test, If the FCIM does not pass the network test, REFER to: Communications Network .
The FDIM illumination is inoperative or does not dim	Network communication concern APIM FDIM	Using a diagnostic scan tool, CARRY OUT a network test. If the APIM passes the network test, INSTALL a new FDIM. REFER to the Removal and Installation procedure in the appropriate Information and Entertainment Systems article. If the FDIM illumination still does not function correctly after the repair, If the APIM does not pass the network test, REFER to: Communications Network .
The GSM (gear selector buttons) illumination is inoperative or does not dim	Gear selector operation concern GSM	VERIFY the gear selector operates correctly. If the gear selector operates correctly, INSTALL a new GSM. REFER to the Removal and Installation procedure in Automatic Transmission External Controls (Except Hybrid) . If the gear selector does not operate correctly, REFER to the Diagnosis and Testing in Automatic Transmission External Controls (Except Hybrid) .