Ford Fusion: Information and Entertainment System - General Information - Vehicles With: SYNC 3 / Information and Entertainment System - System Operation and Component Description. Description and Operation

System Operation

System Diagrams

Audio System

*.sttxt { visibility: hidden; } *.stcallout { visibility: visible; } E350726 1 Roof Mounted Antenna 2 APIM 3 BCM 4 ACM 5 DSP 6 Steering Wheel Switches 7 SCCM 8 GWM 9 PCM 10 IPC 11 Display Unit 12 Speakers 13 Speakers 14 12 Speaker System 15 AM/FM1 Antenna Amplifier 16 FCIM 17 Media Hub 18 USB Port 19 Subwoofer Amplifier 20 Subwoofer Speakers 21 11 Speaker System 22 ANC Microphones 23 DACMC 24 Non-Touchscreen 25 Touchscreen 26 GPS/Satellite Radio Antenna 27 AM/FM1 Antenna 28 without vehicle Wi-Fi 29 with vehicle Wi-Fi

Item	Description
1	Roof Mounted Antenna
2	APIM
3	BCM
4	ACM
5	DSP
6	Steering Wheel Switches
7	SCCM
8	GWM
9	PCM
10	IPC
11	Display Unit
12	Speakers
13	Speakers
14	12 Speaker System
15	AM/ FM1 Antenna Amplifier
16	FCIM
17	Media Hub
18	USB Port
19	Subwoofer Amplifier
20	Subwoofer Speakers
21	11 Speaker System
22	ANC Microphones
23	DACMC
24	Non-Touchscreen
25	Touchscreen
26	GPS/Satellite Radio Antenna
27	AM/ FM1 Antenna
28	without vehicle Wi-Fi
29	with vehicle Wi-Fi

SYNC™ System

*.sttxt { visibility: hidden; } *.stcallout { visibility: visible; } E350727 1 APIM 2 ABS Module 3 RCM 4 GWM 5 BCM 6 IPC 7 ACM 8 DSP 9 ACM 10 TCU 11 Steering Wheel Switches 12 SCCM 13 PCM 14 Display Unit 15 Bluetooth Device 16 Speakers 17 Speakers 18 Wi-Fi Device 19 Secondary Cellular Antenna 20 Roof Mounted Antenna 21 Primary Cellular Antenna 22 GPS/Satellite Radio Antenna 23 12 Speaker System 24 Microphone 25 FCIM 26 Media Hub 27 USB Port 28 Non-Touchscreen 29 Touchscreen

Item	Description
1	APIM
2	ABS Module
3	RCM
4	GWM
5	BCM
6	IPC
7	ACM
8	DSP
9	ACM
10	TCU
11	Steering Wheel Switches
12	SCCM
13	PCM
14	Display Unit
15	Bluetooth Device
16	Speakers
17	Speakers
18	Wi-Fi Device
19	Secondary Cellular Antenna
20	Roof Mounted Antenna
21	Primary Cellular Antenna
22	GPS/Satellite Radio Antenna
23	12 Speaker System
24	Microphone
25	FCIM
26	Media Hub
27	USB Port
28	Non-Touchscreen
29	Touchscreen

Network Message Chart

  ACM Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Battery saver status	BCM	Disables the functionality of the ACM due to the load shedding feature.
Chime controls	IPC	Controls the priority, characteristics, volume, and speaker output of the warning chime tones played through the audio system speakers.
Chime source	IPC	Sets the audio system or IPC as the source for the chime tones.
FCIM button state	FCIM	Indicates a button press on the FCIM.
Ignition status	BCM	Indicates the ignition mode.
MyKey Belt-Minder audio mute	IPC	Mutes speaker output so the Belt-Minder tone can be more easily heard and limit the maximum audio system volume when a MyKey restricted key is in use.
Satellite radio request signals (if equipped)	APIM	Carries out various satellite radio functions using the touchscreen.
Steering wheel switch status	SCCM/ SECM	Indicates the button press status of the steering wheel switches.
SYNC alerts	APIM	Controls the characteristics, volume, and speaker output of the SYNC notifications [text message, news, sports, weather, satellite radio artist/title favorites (if activated), and traffic alerts].
Vehicle configuration data	BCM	Verifies vehicle configuration data such as the VIN and system module configuration.
Vehicle speed	PCM	Used for the speed compensated volume function.

  APIM Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Emergency Assist override status	IPC	Enables or disables the Always on 911 Assist or emergency assistance MyKey feature as selected through the IPC while using an administrator MyKey.
Airbag deployment status	RCM	Monitors airbag deployment status for 911 Assist or emergency assistance.
Date and time	BCM	Displays the current date and time on the display unit.
Display language selection	IPC	Displays information on the display unit in the language as selected by the user.
eCall notification	RCM	Notifies of a 911 Assist or emergency assist call being initiated due to airbag deployment.
FCIM button state	FCIM	Indicates a button press on the FCIM.
Ignition status	BCM	Indicates the ignition mode.
Illumination dimming level	BCM	Controls the backlight intensity.
Navigation rolling wheel count and direction	ABS module	Provides more accurate vehicle position tracking when the GPS signal is temporarily unavailable.
Steering wheel switch status	SCCM/ SECM	Indicates the button press status of the steering wheel switches.
Vehicle configuration data	BCM	Verifies vehicle configuration data such as the VIN and system module configuration.
Vehicle speed	PCM	Used for navigation functionality.

  DSP Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Chime controls	IPC	Controls the priority, characteristics, volume, and speaker output of the warning chime tones played through the audio system speakers.
Chime source	IPC	Sets the audio system or IPC as the source for the chime tones.
Ignition status	BCM	Indicates the ignition mode.
MyKey Belt-Minder audio mute	IPC	Mutes speaker output so the Belt-Minder tone can be more easily heard.
MyKey volume limit status	IPC	Limits the maximum audio system volume when a MyKey restricted key is in use.
Vehicle configuration data	BCM	Verifies vehicle configuration data such as the VIN and system module configuration.

  DACMC Network Input Messages (vehicles equipped with 12 speaker system)

Broadcast Message	Originating Module	Message Purpose
Accelerator pedal position	PCM	Uses the accelerator pedal position percentage for the ANC system operation.
Accessory delay	BCM	Determines the ANC system operating mode.
Door ajar status	BCM	Disables the ANC system when any door is ajar.
Engine off status	PCM	Enables/disables the ANC system if the engine is running/off.

  FCIM Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Illumination dimming level	BCM	Controls the backlight intensity.
Ignition status	BCM	Indicates the ignition mode.
Vehicle configuration data	BCM	Verifies vehicle configuration data such as the VIN and system module configuration.

  TCU Network Input Messages

Broadcast Message	Originating Module	Message Purpose
GPS data	APIM	Indicates the vehicle location via the FordPass mobile application.
Ignition status	BCM	Indicates the ignition mode.
Odometer master value	IPC	Indicates the odometer value via the FordPass mobile application.
Transport mode	BCM	Disables the functionality of the TCU until the vehicle is taken out of transport mode.
Vehicle lock status	BCM	Indicates the vehicle lock/unlock mode.
Wi-Fi request	APIM	Controls various Wi-Fi features, such as password and add/remove device.

Audio System

NOTE: Refer to the Owner Literature for additional details of the audio system.

ACM

The ACM receives and sends network messages over the CAN. A diagnostic scan tool can retrieve Diagnostic Trouble Codes (DTCs), PID data and carry out other diagnostic functions for the ACM via the vehicle DLC.

The ACM is powered at all times and uses the ignition status message to control the on/off mode. The accessory delay feature is controlled by an ignition status message from the BCM.

The ACM uses various inputs such as radio waves and audio signals, conditions, amplifies and converts them to an analog audio signal. This signal can be amplified internally and sent directly to the speakers, or transmitted to a separate amplifier and speaker system.

The ACM (or the DSP if equipped with 12 speakers) receives vehicle speed information from the PCM over the CAN to adapt the volume based on the different vehicle speeds.

AM/ FM/ DAB Radio

The ACM can operate when the ignition is on or off.

Radio stations may broadcast RDS signals which contain information such as station identification and program information. Radios equipped with RDS can extract this information and also target the station genre (music type, such as Rock) for seek or scan functions.

When the AM/ FM mode is selected, the radio amplifies radio waves sent from the antenna. It then selects the requested frequency, converts and amplifies the content. These fluctuating audio signals are output as AC output voltage to power the speakers or as an input to a separate amplifier.

If equipped with High Definition (HD) radio capability, the radio automatically detects and plays back the improved sound quality and multiple programs of HD broadcasts. HD-equipped radios use the existing standard AM/ FM antenna for signal reception. If a concern only exists for the HD radio feature, refer to the troubleshooting guide within the Owner Literature.

If equipped with DAB capability, the radio can provide improved sound quality and multiple programs of digital broadcasts.

DAB-equipped radios are not available in North America.

High Definition (HD) Radio or DAB Radio (if equipped)

High Definition (HD) or DAB radio is a free service offered by some radio stations, enabling them to broadcast better sound quality with multiple programs on a single radio frequency.

A DAB-equipped radio also receives data for the digital radio data link services. Due to the higher broadcast frequencies, DAB requires a different antenna from the standard AM/ FM antenna.

DAB-equipped radios are not available in North America.

Satellite Radio (if equipped)

Satellite radio is a subscription-based service which broadcasts various programs without commercials. The satellite-transmitted signal contains station identification and various program information, including genre and song titles. A satellite equipped radio can display or use this information along with the programming.

Satellite radio receivers contain a required ESN which registers the radio and vehicle with the satellite company.

Satellite signals collected by the satellite radio antenna can be selected and played back over the audio system. The satellite antenna sends satellite radio and GPS data through the satellite radio cable to a splitter (integrated into the cable). The satellite radio signals are separated by the splitter and sent to the satellite radio receiver within the ACM.

The satellite radio feature is only available in North America.

ANC (if equipped)

The ANC system uses 3 microphones, the DACMC (integrated into the ACM), PCM input and the audio system speakers.

The DACMC determines the noise frequency to be canceled based upon engine data and accelerator pedal position data from the PCM, as well as the input from the ANC microphones

While the engine is running, the ANC microphones (located in the headliner) monitor the engine noise resonating in the passenger compartment. The microphones transmit this noise as analog signals to the DACMC, where they are converted into digital signals. The digital signals are processed and an inverted phase sound wave with the same amplitude as the original sound is created. This new sound is converted into an analog audio signal, transmitted to the DACMC internal tone generator. This data is shared with the audio DSP module over the Automobile Audio Bus (A2B) cable. The final output by the ACM and the DSP is sent as fluctuating AC voltage to the speakers.

Extended Audio Play Feature

Extended audio play allows the audio system to operate with the ignition off. When the power button is pressed, the audio system activates and remains active for a period of up to 30 minutes. Extended audio play does not function if the battery load shed is active. Opening a door does not affect the extended audio play feature.

Battery Load Shed Feature

The audio system turns off after periods of engine-off activity with low battery state of charge. The display shows Battery Saver - System Off. Restarting the engine and recharging the battery resets the load shed feature.

Chimes

The audio system broadcasts chimes and other driver alerts sent by various vehicle systems.

For specific chime information,
Refer to: Warning Chimes - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

Speed Compensated Volume Feature

The adjustable speed-compensated volume can be turned off or set to increase audio system playback level as the vehicle speed increases.

SYNC Input

The ACM receives stereo and monaural audio wired inputs from the SYNC system. These include USB or Bluetooth connected music sources, phone call audio, and more.

When the USB input mode is selected, the radio converts the digital media playback to analog audio signals. It amplifies and sends this output to the speakers.

If a compatible phone is paired with the SYNC system, phone call audio may be heard on the vehicle speakers and the spoken response is transmitted to outgoing phone call audio.

ACM Speaker Output - Except 12 Speaker System

The ACM is configured to directly power vehicle speakers. An amplifier in the final stage of the ACM sends an analog AC signal to drive the speakers. Output includes stereo and center channels. The ACM powers all of the vehicle speakers except the subwoofer speakers (11 speaker system). A separate amplifier is used to amplify the audio signals to drive the subwoofer speakers.

A speaker circuit short to ground or power can be detected by the ACM. The ACM may disable speakers to prevent damage to the internal amplifier. A DTC sets to identify which speaker circuits are causing the concern.

ACM Signal/Speaker Output - 12 Speaker System

The ACM is configured to directly power some of the vehicle speakers. An amplifier in the final stage of the ACM sends an analog AC signal to drive the speakers. Output includes stereo and center channels to the instrument panel speakers.

The ACM outputs audio data over an Automobile Audio Bus (A2B) cable to the DSP. The DSP powers the remaining vehicle speakers. Output includes stereo and subwoofer channels.

A speaker circuit short to ground or power can be detected by the ACM and the DSP. The ACM and the DSP may disable speakers to prevent damage to the internal amplifier. This may cause all audio to be inoperative. A DTC sets to identify which speaker circuits are causing the concern.

Remote Audio Controls

The steering wheel switches contain a series of resistors. Each steering wheel audio function switch has a specific resistance value. The SCCM and switch assembly are connected in a voltage divider circuit. The voltage drop over an internal SCCM resistor is changed by the different audio switch function resistances. The SCCM monitors the voltage drop across its internal resistor to determine which steering wheel switch is pressed. The SCCM transmits the steering wheel switch inputs over the CAN to the ACM, to control audio functions.

SYNC™ System

NOTE: Refer to the Owner Literature for additional details of the SYNC system.

NOTE: It may be necessary on occasion to carry out a master reset of the SYNC system for correct operation. Accumulated data uploaded from devices may corrupt the SYNC software and resetting the SYNC system clears this data to allow normal operation of the SYNC system.

The SYNC system is a hands-free communication and entertainment system and provides the following functions:

• Send and receive phone calls via a paired Bluetooth-enabled phone
• Send and receive text messages via a paired Bluetooth-enabled phone
• Connect media devices (such as an iPod®, USB device, or Bluetooth-enabled audio device to play audio files
• Initiate a 911 Assist or emergency assistance call if the airbags deploy
• Provide Vehicle Health Reports
• Provide a vehicle Wi-Fi hotspot (if equipped, cellular subscription required)

Not all SYNC system features are supported with every phone/device. Review the Ford authorized website list of compatible devices to determine if the SYNC system supports a specific phone, tablet, media player or a feature of one of those devices.

The vehicle owner can update the SYNC system (CIP) using a USB flash drive or a Wi-Fi connection not requiring a browser sign in or two-step security validation. If using a flash drive, a minimum of 32 GB of memory is recommended.

• When the SYNC system is connected to a stationary Wi-Fi network (such as a home or restaurant) for automatic updates, the update download occurs when the ignition is off. To limit battery drain, the SYNC system downloads the update for up to 150 minutes in a month for a maximum of 30 minutes at a time.
• When the SYNC system is connected to a mobile Wi-Fi hotspot (network) for automatic updates, the update download can occur when the ignition is in the ON/RUN mode.

Once the update download and installation is complete, an ignition cycle must occur before the update becomes active.

The APIM contains the SYNC software. The SYNC system connects various inputs over Bluetooth or USB connections to the car audio system. The SYNC system allows driver control of a phone, media device, and vehicle systems (navigation and climate control for example).

The APIM is powered at all times and uses the BCM ignition status message to control the on/off mode. The accessory delay feature is controlled by an ignition status message from the BCM.

SYNC Inputs

• USB - media players or flash drives
• Bluetooth - phones or media players
• Display unit and radio control panel switches
• Steering wheel switches
• Voice microphone input
• GPS data
• Serial data link wired input from the ACM
• Network data input from the CAN

SYNC Outputs

• Display unit CAN messages
  • Audio system commands
  • HVAC commands
• Wired outputs to the ACM
  • Stereo (2 channel) audio
  • Monaural voice responses, including navigation guidance (if equipped)
  • Monaural phone call audio and phone ringtone
• Commands to a USB or Bluetooth device
  • Outgoing call commands
  • Text-to-speech information for a phone
  • USB device file selection for playback

Remote SYNC Controls

The steering wheel switches remotely control some SYNC system functions. The steering wheel switch consists of multi-button switches that operate various SYNC functions.

The steering wheel switches contain a series of resistors. Each steering wheel audio function switch has a specific resistance value. The SCCM and switch assembly are connected in a voltage divider circuit. The voltage drop over an internal SCCM resistor is changed by the different audio switch function resistances. The SCCM monitors the voltage drop across its internal resistor to determine which steering wheel switch is pressed. The SCCM transmits the steering wheel switch inputs over the CAN to the APIM to control SYNC functions.

Bluetooth Mode

Bluetooth is a secure, short-range (up to 10 meters [33 feet]) wireless connection method used for wireless device communication with the SYNC system. The SYNC system supports multiple Bluetooth profiles, allowing the SYNC system to interact with Bluetooth enabled phones and Bluetooth-enabled media devices. While most Bluetooth-enabled devices can pair with the SYNC system, not all Bluetooth-enabled devices have the same level of SYNC-compatible features. To determine if a Bluetooth-enabled device or feature is supported, refer to the list of compatible devices and features at the Ford authorized website.

Multiple Bluetooth-enabled phones and Bluetooth-enabled media devices can be paired to the SYNC system at the same time. The SYNC system supports an active connection with one Bluetooth-enabled phone and one Bluetooth-enabled media device at a time. If an additional device of either type is paired and made active, the SYNC system ends any active connection with an already-paired device and establishes an active connection with the new device.

The APIM supports multiple Bluetooth profiles, allowing the SYNC system to interact with both Bluetooth-enabled phones and Bluetooth-enabled media devices.

USB Mode

Connecting a portable media device (such as a MP3 player or USB flash drive) to a USB port allows media files to be played through the audio system. Playback functions (volume, seek, fast forward, pause) can be controlled with the vehicle audio controls.

SYNC can use media with embedded information (artist, album and song titles, and genre) for search and playback functions, if it is supported and correctly formatted on the media device.

When a new media device is connected, SYNC records where the information resides and uses this information to quickly find requested songs. Indexing the media information and location can take several minutes if the size of the media is large. Future changes to SYNC-indexed media are updated rather than replacing the entire index, which greatly reduces the time required.

Media files that do not have DRM protection or are not properly formatted on the device, cannot be played on the SYNC system.

The USB port(s) allow connection and playback of portable media devices and SYNC software updates.

The APIM receives serial data input from connected USB devices. The USB cables to the APIM are shielded to prevent interference from electromagnetic sources. The APIM provides 5 volt power for the USB port(s).

SYNC AppLink

The SYNC AppLink supports devices with customer-installed applications capable of outside control by voice command, the steering wheel switches, the radio control panel or the display unit (touchscreen only). These devices must be paired with SYNC Bluetooth and some devices require a USB connection.

Voice Command

The SYNC voice command capability reduces or eliminates physical interaction with certain vehicle functions or portable device controls. When SYNC is prompted by the steering wheel switch, it responds with a tone or audible response (depending on the SYNC setting) in the audio system. SYNC uses the voice microphone to listen to the driver command and control the vehicle function or portable device.

When the steering wheel voice button is pressed, a CAN message from the SCCM is sent to the APIM, initiating the voice command feature.

When voice commands are spoken, the monitored sounds are converted into analog signals by the microphone and sent to the APIM. The APIM software interprets them and outputs a command.

Text-To-Speech Feature

The SYNC text-to-speech feature converts text information to speech and broadcasts it through the audio system. Text messages with sender information, media titles, and other information can be read and broadcast through the audio system, helping users maintain driving focus.

Emergency Assistance (911 Assist)

The emergency assistance feature (911 Assist) calls for help in an event where the airbags deploy when this feature is enabled and a paired cellular phone is in the vehicle. If activated by an airbag deployment, the system plays a message in the vehicle indicating an emergency call is about to be placed. If not canceled, it dials the emergency response number and plays a pre-recorded message for the emergency response operator. After the message plays, the vehicle occupant(s) can talk with the operator to give their location and personal information.

Compass

Information from the GPS determines the vehicle compass heading. The compass heading displays in the IPC message center or the display unit.

The GPS antenna (integral to the satellite radio antenna) is used to acquire the compass heading.

The compass data is sent through the GPS cable to the APIM. The APIM uses this data in addition to wheel speed and wheel rotation direction messages from the ABS module to calculate and provide accurate vehicle tracking. The APIM processes the data and transmits it through the LVDS cable to the display unit. In the event the GPS fix or signal is temporarily lost, the APIM continues to use CAN messages from the ABS module to maintain compass accuracy.

Navigation System (if equipped)

NOTE: It may be necessary on occasion to carry out a master reset of the SYNC system for correct operation. Accumulated data uploaded from devices may corrupt the SYNC software and resetting the SYNC system clears this data to allow normal operation of the SYNC system.

The navigation system uses GPS to display the vehicle location and travel direction on a map, displayed on the touchscreen. Street names, landmarks, and points of interest are included. The driver can enter destination information to obtain automatic map routing and navigation guidance voice directions.

The APIM receives GPS data from the satellite and the GPS antenna via a coaxial cable. The GPS data is used for the compass heading, vehicle location (in the event of airbag deployment) and navigation guidance. The APIM uses the GPS data along with ABS module wheel speed and rotation direction to provide accurate navigation tracking. In situations where the GPS signal is temporarily lost, the APIM continues to use the ABS module and vehicle acceleration data to continue vehicle tracking.

The navigation map data is stored in the APIM. It can be updated using a USB flash drive. The APIM processes the data and transmits it to the display unit through the LVDS cable.

SIRIUS™ Travel Link™ (if equipped)

SIRIUS™ Travel Link™ is a subscription-based service available on vehicles equipped with navigation. GPS data is required for certain features. When the subscription is active, the ESN of the ACM, with the VIN, is registered with SIRIUS.

SIRIUS™ Travel Link™ information includes traffic conditions, weather, fuel station locations and prices, and local entertainment information.

Traffic Announcement (vehicles equipped with a DAB radio)

The traffic announcement feature is a subscription-free based service available on vehicles equipped with navigation. GPS data is required for certain features.

This feature is not available in North America.

Android Auto™ or Apple CarPlay™

SYNC supports interaction with Android Auto™ and Apple CarPlay™ enabled phones connected by Bluetooth. This allows the user to access phone capabilities and control features via SYNC voice commands and switches. The features include:

• making calls.
• sending and listening to text messages.
• selecting and playing music.
• using the phone voice assistant.
• using phone maps and navigation.

Android Auto™ and Apple CarPlay™ disable some SYNC features. Most Android Auto™ or Apple CarPlay™ features use mobile data.

SYNC Connect (if equipped)

NOTE: Depending on the notification settings, the vehicle may report a Deep Sleep Mode on supported mobile Apps. This occurs when battery voltage drops below a level necessary for correct vehicle operation or the vehicle has been inactive for a number of days.

The SYNC Connect system (when activated) provides remote connectivity through the FordPass mobile phone application. It can monitor certain vehicle systems and carry out vehicle functions such as:

• reading the fuel level and odometer.
• receiving remote alerts and notifications.
• carrying out or scheduling remote starts (if enabled through the IPC).
• using the vehicle locator.
• vehicle lock/unlock control and vehicle lock/unlock status.

NOTE: If vehicle battery voltage falls below the minimum required or the vehicle has been inactive beyond a designated time limit, the TCU turns off until the next engine running event to preserve battery power. The connected mobile device App reports a deep sleep mode if notifications are turned on. Refer to the mobile device App information to set notifications and for a list of disabled features when the vehicle is in deep sleep mode.

The SYNC Connect system uses the TCU to communicate via the cellular network with a device running the SYNC Connect application. The TCU communicates with other vehicle modules over the CAN to obtain information or to carry out application commands, depending on the request.

The primary means of communication between the TCU and the cellular network uses cellular antennas integrated into the GPS/satellite radio antenna. Separate coaxial cables connect the cellular portion of the antenna to the TCU for the primary and secondary cellular inputs.

SYNC Connect data is transmitted via the cellular network to a server or cellular device with the SYNC Connect application installed. The data received via the cellular network from the device application is processed by the TCU, which can make vehicle system commands via the CAN.

Vehicle Wi-Fi Hotspot (if equipped)

The Wi-Fi hotspot feature allows up to 8 devices to connect to high speed internet access. The network name, password, enable/disable and other settings for the Wi-Fi Hotspot feature are accessed using the settings menu on the display unit (touchscreen).

The TCU provides the vehicle Wi-Fi access point.

The TCU communicates to the cellular network by two means. The primary connection is through the coaxial cable to the primary cellular antenna integrated into the roof mounted antenna. The secondary means is through the secondary cellular antenna cable to the secondary cellular antenna (located forward of the IPC).

MyKey™ Audio Feature

NOTE: Refer to the Owner Literature for additional details of the MyKey features.

MyKey use can affect audio system functions.

When a MyKey is in use and the MyKey volume limiter is enabled, the speed compensated volume feature is disabled.

When a MyKey is in use, the following MyKey audio effects are always present, regardless of administrator settings:

• When the seatbelts are not buckled, the audio system mutes and a message informs the driver to buckle up to unmute the audio.
• The satellite radio adult content channels are muted.

The following audio changes can be set by the MyKey administrator to occur when a MyKey is in use:

• The emergency assistance (911 Assist) can be set to always on and cannot be disabled by the MyKey driver.
• Audio volume can be limited in various circumstances, including turning off speed compensated volume or reducing volume at higher vehicle speeds. The display notifies the MyKey driver when volume is limited.

Component Description

Roof Mounted Antenna

AM/FM1 Antenna - Vehicles Not Equipped With Wi-Fi

The AM/ FM1 antenna (also called the audio unit antenna) is integrated into the roof mounted antenna. It receives AM/ FM/ DAB radio waves and sends them through the antenna amplifier to the ACM via the AM/ FM1 antenna coaxial cable.

GPS/Satellite Radio Antenna

The GPS/satellite radio antenna contains a GPS antenna circuit board that receives radio waves containing GPS and satellite radio data and is integrated into the roof mounted antenna. The data is sent through the GPS/satellite radio antenna coaxial cable to the APIM ( GPS data) and through a splitter (if equipped) to the ACM (satellite radio data).

Primary Cellular Antenna - Vehicles Equipped With Wi-Fi

If equipped, the roof mounted antenna contains a cellular antenna circuit board that receives radio waves containing cellular data. The data is sent through the primary cellular antenna coaxial cable to the TCU.

AM/ FM1 Antenna Amplifier - Vehicles Equipped With Wi-Fi

The AM/ FM1 antenna amplifier amplifies AM/ FM audio signals to improve reception. The amplified signal is sent through a coaxial cable to the ACM. The amplifier is powered by the ACM through a separate circuit.

FM2 Antenna Amplifier

The FM2 antenna amplifier amplifies FM audio signals to improve reception. The amplified signal is sent through a coaxial cable to the ACM. The amplifier is powered by the ACM through the coaxial cable.

Secondary Cellular (TCU) Antenna

The secondary cellular antenna is used is used to boost reception for incoming and outgoing cellular network data. It is a compact, cellular phone type, planar inverted-F antenna.

Voice Microphone

The voice microphone is connected to the APIM.

ANC Microphones

The ANC microphones are connected to the DACMC, integrated into the ACM.

Steering Wheel Switches

The audio/SYNC system steering wheel switches contain a series of resistors. Each steering wheel audio function switch has a specific resistance value. The SCCM and switch assembly are connected in a voltage divider circuit.

SCCM

The voltage drop over an internal SCCM resistor is changed by the different audio switch function resistances. The SCCM monitors the voltage drop across its internal resistor to determine which steering wheel switch is pressed. The SCCM transmits the steering wheel switch inputs over the network to the APIM and ACM, to control audio and SYNC system functions.

The SCCM requires PMI when it is replaced.

Media Hub/USB Port

Vehicles With Non-Touchscreen Display

A single USB port in the floor console is powered by the APIM. The port consists of two circuit connections for the 5 volt power, plus two more circuits for digital serial data. This port is integral to the USB cable connected to the APIM.

Data is sent from the two media hub USB ports to the APIM through a single USB cable. The media hub switch manages the data from the two sources.

Vehicles With Touchscreen Display

The media hub contains one or two USB ports, and is powered by the APIM. The media hub has an internal 5 volt power source for the USB ports. Each port consists of two circuit connections for the 5 volt power, plus two more circuits for digital serial data.

When the media hub is equipped with a single USB port, a second USB port located in the floor console storage compartment is provided.

Data is sent from the two USB ports to the APIM through a single USB cable. The media hub switch manages the data from the two ports.

LVDS Cable

The four-circuit shielded LVDS cable provides power and ground from the APIM to the display unit processor. Data is transmitted between the APIM and the display unit via the LVDS cable.

Display Unit

The display unit may also be known as the non-touchscreen display (FCDIM) or the touchscreen display ( FDIM).

The APIM and the display unit exchange information via the LVDS cable. The APIM can communicate display unit-related Diagnostic Trouble Codes (DTCs) over the CAN. The display unit itself does not communicate over the CAN.

A separate connector is used to provide power and ground for the display unit.

FCIM

The control or switch functions of the FCIM are communicates primarily climate control and audio system related. The FCIM requires PMI when it is replaced.

ACM

The ACM contains the DACMC. The DACMC carries out noise canceling to reduce cabin noise.

The ACM and the DACMC require separate PMI procedures when the ACM is replaced.

DSP

The DSP is a power amplifier for the vehicle speakers. The audio input signal comes from the ACM via the Automobile Audio Bus (A2B) cable. It may drive all speakers on a vehicle or share the speaker output with the ACM.

The DSP requires PMI when it is replaced.

TCU

The TCU connects the vehicle to a cellular network. It contains a non-serviceable internal SIM card.

The TCU requires PMI when it is replaced.

APIM

The APIM consists of two internal modules: the CIP and the VIP. The modules are integrated into the APIM but can be programmed individually if required.

The CIP connects to user devices via Bluetooth, USB or Wi-Fi.

The VIP provides vehicle information for the CIP and other SYNC Apps or functions. In addition, the VIP obtains information from the modules on the network for Diagnostic Trouble Codes (DTCs) when a vehicle health report is requested.

APIM Programming

The APIM CIP or VIP software can be updated. When directed by Ford service, the VIP programming is done via the CAN using a diagnostic scan tool.

The CIP programming may be done using the diagnostic scan tool, Wi-Fi or the SYNC USB connection.

The CIP may also be programmed by registered owners using the Ford owner website. Updates are written to a USB drive and taken to the vehicle USB for programming. After the update completes, the APIM CIP writes the new software level and VIN to the USB flash drive, which must be transmitted by the vehicle owner via the internet back to Ford.

BCM

The BCM contains the clock software and sends the date/time data information to other modules via the CAN.