Pinpoint Test K: An Individual Front Display Interface Module (FDIM) Display Is Inoperative - Vehicles Without Navigation

Information and Entertainment System

Pinpoint Test K: An Individual Front Display Interface Module (FDIM) Display Is Inoperative - Vehicles Without Navigation

Normal Operation

The Front Display Interface Module (FDIM) receives inputs via the Medium Speed Controller Area Network (MS-CAN) from the following modules:

- Audio Control Module (ACM) : audio system information

- Instrument Panel Cluster (IPC) : compass heading information

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

- HVAC module: climate control system information

If the FDIM (Front Display Interface Module) loses the signal from any of these modules, only that specific display is inoperative.

For the compass display, this pinpoint test is intended to diagnose a concern of the compass display being blank. For any other concerns with the compass display, including the compass being inaccurate, refer to Instrument Panel, Gauges and Warning Indicators.

This pinpoint test is intended to diagnose the following:

- Communication network concern

- FDIM (Front Display Interface Module)

PINPOINT TEST K : AN INDIVIDUAL FDIM (Front Display Interface Module) DISPLAY IS INOPERATIVE - VEHICLES WITHOUT NAVIGATION

K1 OBSERVE THE FDIM (Front Display Interface Module) DISPLAY

- Turn the audio system on and observe the FDIM (Front Display Interface Module) screen.

Is the FDIM (Front Display Interface Module) display completely inoperative?

Yes
GO to Pinpoint Test N. Pinpoint Test N: The Front Display Interface Module (FDIM) Is Completely Inoperative - Vehicles Without Navigation

No
GO to K2.

K2 CHECK FOR LOST COMMUNICATION DTCs SET IN THE FDIM (Front Display Interface Module)

- Using the scan tool, retrieve all continuous DTCs.

Is DTC U0155, U0164, U0184, or U0197 present in the FDIM (Front Display Interface Module)?

Yes
REFER to DTC Charts. Accessories and Optional Equipment

No
GO to K3.

K3 CHECK THE FDIM (Front Display Interface Module) DISPLAY SEGMENTS

- Carry out the Audio Display Test. Refer to Audio Control Module (ACM) Self-Diagnostic Mode Service and Repair.

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

Yes
GO to K4.

No
GO to K5.

K4 OBSERVE THE SPECIFIC INOPERATIVE DISPLAY

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





Does the inoperative display confirm the expected results?

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

No
If the compass heading is inaccurate or indicates a calibration error, REFER to Instrument Panel, Gauges and Warning Indicators to diagnose the compass.

For all other concerns, GO to K5.

K5 CHECK FOR CORRECT FDIM (Front Display Interface Module) OPERATION

- Ignition OFF.

- Disconnect the FDIM (Front Display Interface Module) connector.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect the FDIM (Front 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 FDIM (Front Display Interface Module). REFER to Front Display Interface Module (FDIM) . 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.