Pinpoint Test V: One Or More Front Control/Display Interface Module (FCDIM) Displays Is Inoperative/Does Not Operate Correctly

Information and Entertainment System

Pinpoint Test V: One Or More Front Control/Display Interface Module (FCDIM) Displays Is Inoperative/Does Not Operate Correctly

Normal Operation

All of the displays on the Front Control/Display Interface Module (FCDIM) screen are controlled through network messages. The modules sending display data to the FCDIM (Front Control/Display Interface Module) are:

- Audio Front Control Module (ACM) : audio system information (including satellite radio information)

- Instrument Panel Cluster (IPC) : warning messages and indicators

- Accessory Protocol Interface Module (APIM) : SYNC(R) system information

If the FCDIM (Front Control/Display Interface Module) loses the signal from any of these modules, only those specific displays are inoperative.

This pinpoint test is intended to diagnose the following:

- Communication network concern

- ACM (Audio Front Control Module)

- IPC (Instrument Panel Cluster)

- APIM (Accessory Protocol Interface Module) (if equipped)

- FCDIM (Front Control/Display Interface Module)

PINPOINT TEST V : ONE OR MORE FCDIM (Front Control/Display Interface Module) DISPLAYS IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

V1 CHECK FOR SCAN TOOL COMMUNICATION WITH THE FCDIM (Front Control/Display Interface Module)

- Carry out the network test using the scan tool.

Does the scan tool communicate with the FCDIM (Front Control/Display Interface Module)?

Yes
GO to V2.

No
REFER to The FCDIM (Front Control/Display Interface Module) Does Not Respond To The Scan Tool in Information Bus Pinpoint Test H: The Front Control/Display Interface Module (FCDIM) Does Not Respond To The Scan Tool.

V2 CHECK FOR LOST COMMUNICATION DTCs SET IN THE FCDIM (Front Control/Display Interface Module)

- Using the scan tool, retrieve all continuous DTCs.

Is DTC U0155:00 or U0193:00 present in the FCDIM (Front Control/Display Interface Module)?

Yes
REFER to DTC Charts Accessories and Optional Equipment.

No
GO to V3.

V3 CHECK THE FCDIM (Front Control/Display Interface Module) DISPLAY SEGMENTS

- Enter the following diagnostic mode on the scan tool: FCDIM (Front Control/Display Interface Module) DataLogger.

- Command all of the LCD segments on using the FCDIM (Front Control/Display Interface Module) active command LCD_SEG (All LCD Segments).

Do all of the FDIM (Front Display Interface Module) segments illuminate?

Yes
GO to V4.

No
GO to V5.

V4 OBSERVE THE SPECIFIC INOPERATIVE DISPLAY

- Observe the inoperative FCDIM (Front Control/Display Interface Module) display while carrying out the indicated diagnostic method as follows:

Inoperative Display Diagnostic Method Expected Results Audio system Turn the audio system on, press the AM/FM button, and tune to several channels. The FCDIM (Front Control/Display Interface Module) display updates to show the change in audio setting. SYNC(R) system (if equipped) Turn the audio system on, press the phone button, and observe the display. The FCDIM (Front Control/Display Interface Module) display shows information relating to the phone.

Does the suspect display operate correctly based on the expected results?

Yes
The system is operating correctly at this time. INFORM the customer on the operation of the FCDIM (Front Control/Display Interface Module) display.

No
For a warning message or indicator concern, REFER to Instrument Panel, Gauges and Warning Indicators.

For all other display concerns, GO to V5.

V5 CHECK FOR CORRECT FCDIM (Front Control/Display Interface Module) OPERATION

- Ignition OFF.

- Disconnect the FCDIM (Front Control/Display Interface Module) connector.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect the FCDIM (Front Control/Display Interface Module) connector and make sure it seats correctly.

- Operate the system and determine if the concern is still present.

Is the concern still present?

Yes
INSTALL a new FCDIM (Front Control/Display Interface Module). REFER to Front Controls/Display Interface Module (FCDIM) Front Controls/Display Interface Module (FCDIM). TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.