Pinpoint Test X: The SYNC System Is Completely Inoperative
Information and Entertainment System
Pinpoint Test X: The SYNC System Is Completely Inoperative
Normal Operation
When a button on the Front Controls Interface Module (FCIM) or Front Display Interface Module (FDIM) is pressed, a network message is broadcast to the Accessory Protocol Interface Module (APIM) via the Medium Speed Controller Area Network (MS-CAN). The APIM takes the appropriate action and sends a status message to the Audio Control Module (ACM) in order to update the display screen.
If the vehicle is equipped with the family entertainment system, the APIM sends data to the Rear Entertainment Module (RETM) via the MS-CAN. This information includes metadata, which can be displayed on the DVD player screen.
- DTC U3000:04 (Control Module: System Internal Failure) - sets when the APIM detects a fault due to a device conflict or an internal failure.
This pinpoint test is intended to diagnose the following:
- Audio system concern
- Communication network concern
- Customer error
- Customer device
PINPOINT TEST X: THE SYNC SYSTEM IS COMPLETELY INOPERATIVE
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X1 CHECK FOR SCAN TOOL COMMUNICATION WITH THE APIM
- Carry out the network test using the scan tool.
- Does the APIM pass the network test?
Yes
GO to X2.
No
REFER to The APIM Does Not Respond To The Scan Tool in Module Communications Network Testing and Inspection.
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X2 CHECK THE SYNC SYSTEM OPERATION
NOTE: Carrying out a Master Reset returns all preference settings to the factory defaults, erases all the phone book and call histories, and deletes any devices paired with the SYNC system.
- Connect: Multi-Media Interface Tester.
- Using the Multi-Media Interface Tester, test the audio output for the audio input jack, USB port, and Bluetooth connection using the VOICE switch on the steering wheel controls to enter each mode.
- Do all of the SYNC inputs function correctly?
Yes
The SYNC system is operating correctly at this time. CARRY OUT a SYNC system Master Reset. REFER to the Owner's Literature.
REVIEW the SYNC system operation with the customer. If the customer device still does not operate correctly, the fault is with the customer device.
No
GO to X3.
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X3 RESET THE APIM
- Disconnect: Multi-Media Interface Tester.
- Remove the SJB fuse 14 (10A).
- Wait 5 minutes.
- Reinstall the fuse and wait 2 minutes for the APIM to re-initialize.
- Test the system for normal operation.
- Does the system operate correctly?
Yes
The cause of the fault was due to a device conflict. The system is operating correctly at this time.
REVIEW the SYNC system operation with the customer. If the customer device still does not operate correctly, the fault is with the customer device.
No
If only some (but not all) of the inputs are inoperative, GO to Symptom Chart - SYNC System to diagnose the observed symptom. If all inputs are inoperative and/or DTC U3000:04 is present, INSTALL a new APIM. REFER to Accessory Protocol Interface Module (APIM) Accessory Protocol Interface Module (APIM). Symptom Chart - SYNC System
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