Network Communication
WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The following audio system components communicate via the MS-CAN:
- Audio unit
- Navigation audio unit
- Satellite radio receiver
- DVD player
- THX® amplifier
The following messages are utilized by the audio system:
| Message | Transmitting Module | Receiving Module(s) | Audio System Function |
|---|---|---|---|
| Ignition Switch Position | Instrument cluster | Audio unit Satellite radio receiver DVD player THX® amplifier |
Indicates ignition switch position for power-up/shut-down. |
| Backlight Dimmer | Smart junction box (SJB) | Audio unit DVD player |
Controls the backlight intensity, based on the position of the dimmer switch. |
| Transmission Gear Selected | Instrument cluster | Audio unit | For navigation system, this signal is used for more accurate navigation tracking. |
| Delayed Accessory Status | SJB | Audio unit DVD player |
When active, this signal allows the audio component to be operated after the vehicle is shut off and a door has not been opened. |
| Engine RPM Data | Instrument cluster | Audio unit THX® amplifier |
Used by the audio unit (or THX® amplifier) for the speed-compensated volume function. |
| Wheel Speed Data | Instrument cluster | Audio unit | For navigation system, this signal is used for more accurate navigation tracking. |