System Diagram
WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
NETWORK MESSAGE
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Climate control touchscreen and voice requests | APIM | The climate control requests message contains the heated seat system request information. When any heated seat function is requested using the FDIM (touchscreen), this input is used to activate the heated seat system. |
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Climate controlled seat set status | HVAC Module | The climate controlled seat set status message provides the current status of the heated seats to the APIM . The APIM then updates the displayed status of the heated seat buttons on the FDIM (touchscreen). |
The driver and passenger heated seat buttons are selected from the touchscreen interface. When the heated seat button is pressed on the touchscreen interface, the APIM sends the request message to the FCIM over the I-CAN . When a heated seat request message has been received from the APIM , the FCIM sends the request message to the IPC over the I-CAN . The IPC sends the message to the BCM over the HS-CAN. The message is then sent to the HVAC module over the MS-CAN . Upon receiving the request, the HVAC module supplies voltage to the appropriate driver and/or passenger seat cushion and backrest heater mats.