Symptom Chart: Instrument Panel and Interior Switches Illumination

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

Condition	Possible Sources	Actions
A module does not respond to the diagnostic scan tool	Fuse Wiring, terminals or connectors Module	REFER to: Communications Network .
All dimmable non-networked illumination is inoperative (networked illumination functions correctly)	Refer to the Pinpoint Test	GO to Pinpoint Test A
All dimmable non-networked illumination is always on (networked illumination functions correctly)	Refer to the Pinpoint Test	GO to Pinpoint Test B
All dimmable illumination (networked and non-networked sources) does not dim or increase brightness	Refer to the Pinpoint Test	GO to Pinpoint Test C
The steering wheel switch(es) illumination is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test D
One Or More Dimmable Non-Networked Illumination Source Is Inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test E
The passenger front, RH rear or LH rear window control switch illumination is inoperative or always on (One-Touch Up and Down Front Windows)	Refer to the Pinpoint Test	GO to Pinpoint Test F
The front door lock switch illumination is inoperative or always on (with One-Touch Open Driver Window)	Refer to the Pinpoint Test	GO to Pinpoint Test G
The driver window control switch illumination is inoperative or always on (One-Touch Up and Down Front Windows)	Window control switch	VERIFY the operation of the power windows. If the power windows operate correctly, INSTALL a new LH front window control switch. If the power windows do not operate correctly, REFER to: Glass, Frames and Mechanisms - Vehicles With: One-Touch Open and Close Front Windows .
The window control switch illumination is inoperative or always on (One-Touch Down Driver Window)	Wiring, terminals or connectors Window control switch	VERIFY the operation of the power windows. If the power windows operate correctly, INSTALL a new window control switch. If the power windows do not operate correctly, REFER to: Glass, Frames and Mechanisms - Vehicles With: One-Touch Open Driver Window .
The ACM illumination is inoperative (if equipped)	Network communication concern ACM	Using a diagnostic scan tool, PERFORM a network test. If the ACM passes the network test, INSTALL a new ACM. REFER to: Audio Front Control Module (ACM) . If the diagnostic scan tool responds with no communication with the ACM, REFER to: Communications Network .
The FCIM illumination is inoperative/does not dim	Network communication concern FCIM	VERIFY the operation of the audio system. If the audio system operates correctly, INSTALL a new FCIM. If the audio system does not operate correctly, REFER to: Information and Entertainment System .
The FCDIM illumination is inoperative/does not dim	Network communication concern FCDIM	VERIFY the operation of the audio system. If the audio system operates correctly, INSTALL a new FCDIM. If the audio system does not operate correctly, REFER to: Information and Entertainment System .
The FDIM illumination does not dim	Network communication concern FDIM	PERFORM a network test. If the scan tool does not communicate with the APIM, REFER to: Communications Network . If the scan tool communicates with the APIM, Refer to FDIM GUIDED ROUTINE
The IPC illumination is inoperative/does not dim	Network communication concern IPC	Using a diagnostic scan tool, PERFORM a network test. If the diagnostic scan tool responds with no communication with the IPC, REFER to: Communications Network .
The HVAC module illumination is inoperative/does not dim (with DATC)	Network communication concern HVAC module	Using a diagnostic scan tool, PERFORM a network test. If the HVAC module passes the network test, INSTALL a new HVAC module. REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module - Vehicles With: Electronic Automatic Temperature Control (EATC) in the appropriate Climate Control System General Information article. If the diagnostic scan tool responds with no communication with the HVAC module, REFER to: Communications Network .
The HVAC module illumination is inoperative/does not dim (with EATC)	Network communication concern HVAC module	Using a diagnostic scan tool, PERFORM a network test. If the HVAC module passes the network test, INSTALL a new HVAC module. REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module - Vehicles With: Electronic Automatic Temperature Control (EATC) in the appropriate Climate Control System General Information article. If the diagnostic scan tool responds with no communication with the HVAC module, REFER to: Communications Network .