Pinpoint Test Z: The Sync System Is Completely Inoperative

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Z1 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 Z2.
- No : REFER to MODULE COMMUNICATIONS NETWORK .
Z2 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, Universal Serial Bus (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 Manual.
  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 TABLE - SYNC SYSTEM to diagnose the observed symptom.
  If all inputs are inoperative, GO to Z3.
Z3 CHECK FOR CORRECT APIM OPERATION
- Ignition OFF.
- Disconnect the APIM connector.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the APIM connector and make sure it seats correctly.
- Wait 2 minutes for the APIM to re-initalize.
- Is the concern still present?
- Yes : INSTALL a new APIM . REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . 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.