Pinpoint Test L: An Individual Front Display Interface Module (FDIM) Display Is Inoperative (Vehicles With Navigation)
Information and Entertainment System
Pinpoint Test L: An Individual Front Display Interface Module (FDIM) Display Is Inoperative (Vehicles With Navigation)
Normal Operation
The Front Display Interface Module (FDIM) display provides information based on the video signal provided by the Audio Control Module (ACM) through the dedicated video feed cable. In addition to the information that the ACM (Audio Control Module) controls for the navigation and audio system, the ACM (Audio Control Module) receives inputs via the Medium Speed Controller Area Network (MS-CAN) from the following modules:
- Accessory Protocol Interface Module (APIM) : SYNC system information
- HVAC module: climate control system information
If the ACM (Audio Control Module) loses the signal from any of these modules, only that specific display is inoperative.
This pinpoint test is intended to diagnose the following:
- Communication network concern
- FDIM (Front Display Interface Module)
- ACM (Audio Control Module)
PINPOINT TEST L : AN INDIVIDUAL FDIM (Front Display Interface Module) DISPLAY IS INOPERATIVE (VEHICLES WITH NAVIGATION)
L1 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 J. Pinpoint Test J: The Front Display Interface Module (FDIM) Is Completely Inoperative (Vehicles With Navigation)
No
GO to L2.
L2 CHECK THE FDIM (Front Display Interface Module) DISPLAY SEGMENTS
- Enter the following diagnostic mode on the scan tool: Audio Display Test.
- Follow the scan tool instructions to carry out the audio display test.
Do all of the FDIM (Front Display Interface Module) segments illuminate?
Yes
GO to L3.
No
GO to L5.
L3 OBSERVE THE SPECIFIC INOPERATIVE DISPLAY
- Observe the inoperative FDIM (Front 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 adjust the volume. The FDIM (Front Display Interface Module) display updates to show the change in audio setting. SYNC system Turn the audio system on, press the phone button, and observe the display. The FDIM (Front Display Interface Module) display shows information relating to the phone. Climate control system Turn the climate control system on, adjust the fan to high speed, and set the temperature to various settings. The FDIM (Front Display Interface Module) display updates to show the change in climate control setting.
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) displays.
No
GO to L4.
L4 CHECK FOR LOST COMMUNICATION DTCs
- Ignition ON.
- Clear continuous DTCs from all modules.
- Ignition OFF.
- Ignition ON.
- Wait at least 10 seconds.
- Retrieve all continuous DTCs (from all modules).
Is DTC U0164, U0184, or U0197 present in any module?
Yes
For DTC U0164, GO to Pinpoint Test AP. Pinpoint Test AP: DTC U0164 Or DTC U0164:00
For DTC U0197, GO to Pinpoint Test AR. Pinpoint Test AR: DTC U0197 Or DTC U0197:00
No
GO to L5.
L5 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) - With Navigation . 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.