Ford Fusion 2013+ CAN Bus Information
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  • Here is information on the CANBus for the newer Ford Fusions and similar vehicles... use it to do cool things :)

    Communications Network

    Multiplexing is a method of sending 2 or more signals simultaneously over a single circuit. Multiplexing allows 2 or more electronic modules (nodes) to communicate over a twisted wire pair [data (+) and data (-)] network. The information or messages that can be communicated on these wires consists of commands, status or data. Multiplexing reduces the weight of the vehicle by reducing the number of redundant components and electrical wiring.

    The vehicle has 2 module communication networks connected to the DLC, located under the instrument panel. The communication networks are:
    HS-CAN1
    HS-CAN2
    The vehicle has 2 module communication networks that communicate on the network, but do not communicate directly with the diagnostic scan tool. The GWM translates the messages on these 2 networks, and transfers the signals to the HS-CAN2 to communicate with the diagnostic scan tool. The communication networks are:
    HS-CAN3
    MS-CAN)

    System Diagram
    <a href="http://s1057.photobucket.com/user/DanMc85/media/E182295_EN_650_zpscck1fryw.jpg.html" target="_blank"><img src="http://i1057.photobucket.com/albums/t387/DanMc85/E182295_EN_650_zpscck1fryw.jpg" border="0" alt=" photo E182295_EN_650_zpscck1fryw.jpg"/></a>

    Module Network Chart

    Module Name Network Type Terminating Module

    APIM (if equipped) HS-CAN1 No
    HS-CAN3 No
    MS-CAN No

    ABS module HS-CAN2 No

    ACM HS-CAN3 No

    DSP (if equipped) HS-CAN3 No

    BCM HS-CAN1 No

    CCM HS-CAN2 No

    DC/ DC (DC/DC) converter control module (VQM) (if equipped) HS-CAN1 No

    DDM MS-CAN No

    DSM MS-CAN No

    FCIM MS-CAN Yes

    FCDIM (if equipped) HS-CAN3 No

    GWM HS-CAN1 Yes
    HS-CAN2 Yes
    HS-CAN3 Yes
    MS-CAN Yes

    GPSM (if equipped) MS-CAN No

    OCSM HS-CAN2 No

    HUD module (if equipped) HS-CAN2 No

    HSWM (if equipped) MS-CAN No

    IPC HS-CAN3 Yes

    IPMA (if equipped) HS-CAN2 No

    PAM (if equipped) (Integral with BCM) HS-CAN1 No

    PSCM HS-CAN2 No

    PCM HS-CAN1 Yes

    PDM MS-CAN No

    RTM MS-CAN No

    RCM HS-CAN2 No

    SODL (if equipped) MS-CAN No

    SODR (if equipped) MS-CAN No

    SCME (if equipped) MS-CAN No

    SCCM HS-CAN2 No

    Tracking and Blocking System (TBS) Module (Brazil only) HS-CAN2 No

    Network Termination

    The CAN uses network termination to improve communication reliability. Termination modules are located at both ends of the network. As network messages are broadcast in the form of voltage signals, the network voltage signals are stabilized by the termination resistors.
    Each termination module has an internal 120 ohm resistor that bridges across the positive and negative bus connection. With two 120 ohm resistors located in a parallel circuit configuration, the total network impedance, or total resistance, is 60 ohms.
    Network termination improves bus message reliability by stabilizing bus voltage and eliminating electrical interference.

    Gateway Module

    NOTE: The GWM, communicates with the 4 controller area networks (CAN). The OBD DLC is fitted to the GWM, and is the direct interface with the scan tool.
    The GWM is mounted under the driver side instrument panel. The OBD connector is fitted to the GWM. The GWM acts as a central gateway to translate messages across all 4 vehicle controller area networks (CAN), and vice versa. The GWM is the only module on this vehicle with this ability. The GWM also serves as a termination module for each of the networks to which it is connected.
    The 2 module communication networks connected to the DLC are HS-CAN1 and HS-CAN2. These 2 networks communicate directly with the diagnostic scan tool. The other 2 communication networks, HS-CAN3 and MS-CAN, communicate on the network, but do not communicate directly with the diagnostic scan tool. The GWM translates the messages from these 2 networks to the HS-CAN2, which transfers the signals to the diagnostic scan tool.

    <a href="http://s1057.photobucket.com/user/DanMc85/media/E178577_EN_650_zpstyqntx8v.jpg.html" target="_blank"><img src="http://i1057.photobucket.com/albums/t387/DanMc85/E178577_EN_650_zpstyqntx8v.jpg" border="0" alt=" photo E178577_EN_650_zpstyqntx8v.jpg"/></a>

    High Speed Controller Area Network 1 and 2 (HS-CAN1, HS-CAN2)

    The HS-CAN1 and HS-CAN2 operate at a maximum data transfer speed of 500 Kbps and are designed for real time powertrain and driver feature information transfer and control. Modules on the HS-CAN1 and HS-CAN2 communicate using bussed messages. The HS-CAN uses an unshielded twisted pair cable, data bus (+) and data bus (-) circuits. In addition to scan tool communication, the HS-CAN allows sharing of information between all modules on each HS-CAN.
    With the addition of more modules, network traffic has increased. This has created the need for an additional HS-CAN to manage the increased bus data carried on each network.
    The GWM is used as a gateway for the messages to transfer between the scan tool and the modules on the HS-CAN1 and the modules on the HS-CAN2.
    The scan tool communicates with the vehicle communication networks directly through the HS-CAN1 and HS-CAN2.
    High Speed Controller Area Network 3 (HS-CAN3)
    The HS-CAN3, or the infotainment controller area network (I-CAN), operates at a maximum data transfer speed of 500 Kbps and is designed for real time audio, multimedia and driver information transfer and control. Modules on the HS-CAN3 communicate using bussed messages. HS-CAN3 uses an unshielded twisted pair cable, data bus (+) and data bus (-) circuits, and allows sharing of information between all modules on the network.
    The GWM is used as a gateway for the messages to transfer between the scan tool and the modules on the HS-CAN3.
    The GWM translates the diagnostic messages from the HS-CAN2 to the HS-CAN3 and vice versa, allowing communication between the modules on the HS-CAN3 and the scan tool.

    Medium Speed Controller Area Network (MS-CAN)

    The MS-CAN operates at a maximum data transfer speed of 125 Kbps and is designed for general information transfer. Modules on the MS-CAN communicate using bussed messages. The MS-CAN uses an unshielded twisted pair cable, data bus (+) and data bus (-) circuits. In addition to scan tool communication, the MS-CAN allows sharing of information between all modules on the network.
    The GWM is used as a gateway for the messages to transfer between the scan tool and the modules on the MS-CAN.
    The GWM translates the diagnostic messages from the HS-CAN2 to the MS-CAN and vice versa, allowing communication between the modules on the MS-CAN and the scan tool.

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