Pinpoint Test M: The SYNC(R) System Is Completely Inoperative

Information and Entertainment System

Pinpoint Test M: The SYNC(R) System Is Completely Inoperative

Normal Operation

The Accessory Protocol Interface Module (APIM) takes action based on network message it receives from other audio system modules, and from the VOICE switch (part of the multifunction switch). The APIM sends display data to the Front Control/Display Interface Module (FCDIM) in order to update the display 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
- APIM

PINPOINT TEST M: THE SYNC(R) SYSTEM IS COMPLETELY INOPERATIVE

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M1 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 M2.

No
REFER to Module Communications Network Testing and Inspection.

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M2 CHECK THE SYNC(R) 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(R) 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(R) inputs function correctly?

Yes
The SYNC(R) system is operating correctly at this time. CARRY OUT a SYNC(R) system Master Reset. REFER to the Owner's Literature.

REVIEW the SYNC(R) system operation with the customer. If the customer device still does not operate correctly, the fault is with the customer device.

No
GO to M3.

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M3 RESET THE APIM AND RECHECK SYNC(R) SYSTEM OPERATION

- Carry out an APIM power reset by disconnecting the battery for 5 minutes, then reconnecting it.
- 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(R) inputs function correctly?

Yes
The SYNC(R) system is operating correctly at this time. CARRY OUT a SYNC(R) system Master Reset. REFER to the Owner's Literature.

REVIEW the SYNC(R) 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 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 Related Diagnostic Procedures

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