Positive Measurement / Negative Lead — 2016 workshop reference 4486

Using the multimeter mV range setting, measure the following: (if necessary, refer to the multimeter's owner's manual for information on how to access the mV range)

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C2123-3		Ground (ensure that the LVDS (Low Voltage Differential Signaling) cable ground is not used for this measurement)

Positive Lead

Measurement /

Action

Negative Lead

C2123-3

Ground (ensure that the LVDS (Low Voltage Differential Signaling) cable ground is not used for this measurement)

Is the voltage between .5 and 10 millivolts?

Yes	INSTALL a new FDIM. REFER to: Front Display Interface Module (FDIM) (415-00B Information and Entertainment System - General Information - Vehicles With: Touchscreen Display, Removal and Installation).
No	GO to AE7

AE5 TEMPORARILY REMOVE THE POWER FROM THE APIM (SYNC MODULE) AND RECHECK THE SYSTEM OPERATION

Ignition OFF. Disconnect: Negative Battery Cable from the battery post. Wait for 1 minute. Connect: Negative Battery Cable to the battery post. Ignition ON. Perform various FDIM touch commands and observe the FDIM operation.

Does the FDIM respond correctly to each touch command?

Yes	The FDIM is operating correctly at this time.
No	GO to AE6

AE6 REMOVE THE FCIM (FRONT CONTROLS INTERFACE MODULE) AND RECHECK THE SYSTEM OPERATION

NOTE: The FDIM can only sense one touch command at a time. If any objects are pressed against the touchscreen (including wiring or components behind the trim panel surrounding the FDIM), the FDIM can appear to be inoperative.

Remove the FCIM, but do not disconnect any electrical connectors. REFER to: Front Controls Interface Module (FCIM) (415-00B Information and Entertainment System - General Information - Vehicles With: Touchscreen Display, Removal and Installation). Perform various FDIM touch commands and observe the FDIM operation.

Does the FDIM respond correctly to each touch command?

Yes	The FDIM is operating correctly at this time. REINSTALL the FCIM and ensure the FDIM opening is properly aligned with the FDIM and that no objects are in contact with the FDIM touchscreen.
No	GO to AE7

AE7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Source reference 4486

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.