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

Information and Entertainment System

Pinpoint Tests

Pinpoint Test H: 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 Cluster (IC): compass heading information
- Accessory Protocol Interface Module (APIM): SYNC system information
- HVAC module: climate control system information

If the FDIM 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 Compass.

U0164-U0256:

This pinpoint test is intended to diagnose the following:

- Communication network concern
- FDIM



PINPOINT TEST H: AN INDIVIDUAL FDIM DISPLAY IS INOPERATIVE - VEHICLES WITHOUT NAVIGATION

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H1 OBSERVE THE FDIM DISPLAY


- Turn the audio system on and observe the FDIM screen.
- Is the FDIM display completely inoperative?

Yes
Go To Pinpoint Test G. Pinpoint Test G: The Front Display Interface Module (FDIM) Is Completely Inoperative - Vehicles Without Navigation

No
GO to H2.

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H2 CHECK FOR LOST COMMUNICATION DTCs SET IN THE FDIM


- Using the scan tool, retrieve all continuous DTCs.
- Is DTC U0155, U0184, U0196, or U0197 present in the FDIM?

Yes
REFER to DTC Charts. [1][2]Diagnostic Trouble Code Descriptions

No
GO to H3.

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H3 CHECK THE FDIM DISPLAY SEGMENTS


- Carry out the Audio Display Test. Refer to Audio Control Module (ACM) Self-Diagnostic Mode Audio Control Module (ACM) Self-Diagnostic Mode.
- Do all of the FDIM segments illuminate?

Yes
GO to H4.

No
GO to H5.

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H4 OBSERVE THE SPECIFIC INOPERATIVE DISPLAY


- Observe the inoperative FDIM 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 displays.

No
If the compass heading is inaccurate or indicates a calibration error, REFER to Compass to diagnose the compass.

For all other concerns, GO to H5.

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H5 CHECK FOR CORRECT FDIM OPERATION


- Ignition OFF.
- Disconnect the FDIM connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the FDIM 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. REFER to Front Display Interface Module (FDIM) 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.

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