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Pinpoint Test J: The Audio System Does Not Operate Correctly From The Front Controls Interface Module (FCIM)
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Information and Entertainment System
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 (Front Controls Interface Module) is also the customer interface with the HVAC module.
If the FCIM (Front Controls Interface Module) can no longer communicate on the MS-CAN (Medium Speed Controller Area Network) (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 FCIM (Front Controls Interface Module) 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 When this occurs, the FCIM (Front Controls Interface Module) disables the switch until it detects it as no longer active.
- DTC U2013:63 (Switch Pack: Circuit / Component Protection Time-Out)- set by the navigation FCIM (Front Controls Interface Module) 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 When this occurs, the FCIM (Front Controls Interface Module) disables the switch until it detects it as no longer active.
This pinpoint test is intended to diagnose the following:
- Communication network concern
- FCIM (Front Controls Interface Module)
PINPOINT TEST J : THE AUDIO SYSTEM DOES NOT OPERATE CORRECTLY FROM THE FCIM (Front Controls Interface Module)
J1 RETRIEVE ALL CONTINUOUS DTCs
- Using the scan tool, retrieve all continuous DTCs.
Are DTCs U0184, U0184:00, U0255, or U0256:00 present in any audio system module?
Yes
REFER to DTC Charts. Accessories and Optional Equipment
No
GO to J2.
J2 CHECK FOR DTC B2924 OR DTC U2013:63
- Clear the FCIM (Front Controls Interface Module) DTCs.
- Repeat the FCIM (Front Controls Interface Module) self-test, making sure no FCIM (Front Controls Interface Module) buttons are pressed during the test.
Is DTC B2924 or DTC U2013:63 present?
Yes
INSTALL a new FCIM (Front Controls Interface Module). REFER to Front Controls Interface Module (FCIM) . TEST the system for normal operation.
No
GO to J3.
J3 CHECK FOR CORRECT FCIM (Front Controls Interface Module) OPERATION
- Disconnect the FCIM (Front Controls Interface Module) connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the FCIM (Front Controls 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 FCIM (Front Controls Interface Module). REFER to 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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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.