Pinpoint Test J: The Audio System Does Not Operate Correctly From The Front Controls Interface Module (FCIM)

Information and Entertainment System

Pinpoint Tests

Pinpoint Test J: The Audio System Does Not Operate Correctly From The Front Controls Interface Module (FCIM)

Normal Operation

When a button is pressed on the Front Controls Interface Module (FCIM), a signal is broadcast over the Medium Speed Controller Area Network (MS-CAN) to the modules in the audio system. The FCIM is also the customer interface with the HVAC module.

If the FCIM can no longer communicate on the MS-CAN (due to loss of power, ground, etc.), the audio system remains in the operating state it was in prior to the failure. The steering wheel controls continue to operate.

- DTC B2924 (Audio Button Stuck) - set by the non-navigation (Fusion, Milan) FCIM if a switch is detected as active for greater than 3 seconds during the self-test, or for greater than 2 minutes during normal operation. When this occurs, the FCIM disables the switch until it detects it as no longer active.
- DTC U2013:63 (Switch Pack: Circuit / Component Protection Time-Out) - set by the non-navigation (MKZ) or navigation (all) FCIM if a switch is detected as active for greater than 3 seconds during the self-test, or for greater than 2 minutes during normal operation. When this occurs, the FCIM disables the switch until it detects it as no longer active.

This pinpoint test is intended to diagnose the following:

- Communication network concern
- FCIM



PINPOINT TEST J: THE AUDIO SYSTEM DOES NOT OPERATE CORRECTLY FROM THE FCIM

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J1 RETRIEVE ALL CONTINUOUS DTCs


- Using the scan tool, retrieve all continuous DTCs.
- Are DTCs U0184, U0184:00, U0255, or U0255:00 present in any audio system module?

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

No
GO to J2.

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J2 CHECK FOR DTC B2924 OR DTC U2013:63


- Clear the FCIM DTCs.
- Repeat the FCIM self-test, making sure no FCIM buttons are pressed during the test.
- Is DTC B2924 or DTC U2013:63 present?

Yes
INSTALL a new FCIM. REFER to Front Controls Interface Module (FCIM) - Fusion, Milan Front Controls Interface Module (FCIM) or Front Controls Interface Module (FCIM) - MKZ Front Controls Interface Module (FCIM). TEST the system for normal operation.

No
GO to J3.

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J3 CHECK FOR CORRECT FCIM OPERATION


- Disconnect the FCIM connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the FCIM 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 FCIM. REFER to Front Controls Interface Module (FCIM) - Fusion, Milan Front Controls Interface Module (FCIM) or Front Controls Interface Module (FCIM) - MKZ Front Controls Interface Module (FCIM). CLEAR any DTCs present. 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. CLEAR any DTCs present.

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