Pinpoint Test X: The SYNC System Is Completely Inoperative
Information and Entertainment System
Pinpoint Tests
Pinpoint Test X: The SYNC System Is Completely Inoperative
Normal Operation
When a button on the Audio Control Module (ACM) is pressed, a network message is sent 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 ACM in order to update the display screen.
If a Universal Serial Bus (USB) mass storage device is used to play an audio file, the SYNC system only plays audio files that do not have Digital Rights Management (DRM) protection.
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 Information Bus.
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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.
- 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
If only some of the inputs are inoperative, GO to Symptom Chart - SYNC System to diagnose the observed symptom. Symptom Chart - SYNC System
If all inputs are inoperative, GO to Pinpoint Test P. Pinpoint Test P: Poor Quality/Distorted/No Sound While In SYNC Mode
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