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 are:
- Audio 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 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
- IPC
- APIM (if equipped)
- FCDIM
PINPOINT TEST V: ONE OR MORE FCDIM DISPLAYS IS INOPERATIVE/DOES NOT OPERATE CORRECTLY
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V1 CHECK FOR SCAN TOOL COMMUNICATION WITH THE FCDIM
- Carry out the network test using the scan tool.
- Does the scan tool communicate with the FCDIM?
Yes
GO to V2.
No
REFER to The FCDIM Does Not Respond To The Scan Tool in Module Communications Network Testing and Inspection.
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V2 CHECK FOR LOST COMMUNICATION DTCs SET IN THE FCDIM
- Using the scan tool, retrieve all continuous DTCs.
- Is DTC U0155:00 or U0193:00 present in the FCDIM?
Yes
REFER to DTC Charts. [1][2]Diagnostic Trouble Code Descriptions
No
GO to V3.
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V3 CHECK THE FCDIM DISPLAY SEGMENTS
- Enter the following diagnostic mode on the scan tool: FCDIM DataLogger.
- Command all of the LCD segments on using the FCDIM active command LCD_SEG (All LCD Segments).
- Do all of the FDIM segments illuminate?
Yes
GO to V4.
No
GO to V5.
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V4 OBSERVE THE SPECIFIC INOPERATIVE DISPLAY
- Observe the inoperative FCDIM display while carrying out the indicated diagnostic method as follows:
- 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 display.
No
For a warning message or indicator concern, REFER to Instrumentation, Message Center, and Warning Chimes Testing and Inspection.
For all other display concerns, GO to V5.
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V5 CHECK FOR CORRECT FCDIM OPERATION
- Ignition OFF.
- Disconnect the FCDIM connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the FCDIM 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. 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.
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