Overview
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. The advantage of using multiplexing is to reduce the weight of the vehicle by reducing the number of redundant components and electrical wiring.
The vehicle has 4 module communication networks connected to the DLC , located under the instrument panel. The communication networks are
- Base High Speed Controller Area Network (HS-CAN)
- Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN)
- Medium Speed Controller Area Network (MS-CAN)
- Infotainment Controller Area Network (I-CAN)
Scheme 16
| Module Name | Network Type |
|---|---|
| ACCM | Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) |
| APIM (if equipped) | High Speed Controller Area Network (HS-CAN) |
| Medium Speed Controller Area Network (MS-CAN) | |
| Infotainment Controller Area Network (I-CAN) | |
| ABS module | Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) |
| ACM | Infotainment Controller Area Network (I-CAN) |
| DSP (if equipped) | Infotainment Controller Area Network (I-CAN) |
| BECM | Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) |
| BCM | High Speed Controller Area Network (HS-CAN) |
| Medium Speed Controller Area Network (MS-CAN) | |
| DC to DC Converter Control Module (DC/DC) | Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) |
| DDM (if equipped) | Medium Speed Controller Area Network (MS-CAN) |
| FCIM | Infotainment Controller Area Network (I-CAN) |
| GWM | Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) |
| High Speed Controller Area Network (HS-CAN) | |
| Medium Speed Controller Area Network (MS-CAN) | |
| Infotainment Controller Area Network (I-CAN) | |
| GFM (Charge Port Light Ring (CPLR)) | Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) |
| GPSM (if equipped) | Medium Speed Controller Area Network (MS-CAN) |
| HVAC module | Medium Speed Controller Area Network (MS-CAN) |
| OCSM | High Speed Controller Area Network (HS-CAN) |
| IPC | Medium Speed Controller Area Network (MS-CAN) |
| Infotainment Controller Area Network (I-CAN) | |
| IPMB (if equipped) | Medium Speed Controller Area Network (MS-CAN) |
| PAM (if equipped) | High Speed Controller Area Network (HS-CAN) |
| PSCM | High Speed Controller Area Network (HS-CAN) |
| PCM | Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) |
| PDM (if equipped) | Medium Speed Controller Area Network (MS-CAN) |
| RFA module (if equipped) | Medium Speed Controller Area Network (MS-CAN) |
| RCM | High Speed Controller Area Network (HS-CAN) |
| SOBDM | Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) |
| SASM | High Speed Controller Area Network (HS-CAN) |
| TCU | Infotainment Controller Area Network (I-CAN) |
| TCM | Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) |
MODULE NETWORK CHART
Diagnostic Overview
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
Normal Operation and Fault Conditions
The PCM communicates with the scan tool through the Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN). An Integrated Diagnostic System (IDS) session cannot be established if the PCM communication fails when attempting to identify the vehicle.
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The ABS module communicates with the scan tool through the Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The RCM communicates with the scan tool through the High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The OCSM communicates with the scan tool through the High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The SASM communicates with the scan tool through the High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The IPC communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN) and communicates with the other modules on the Infotainment Controller Area Network (I-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The BCM communicates with the scan tool through the High Speed Controller Area Network (HS-CAN) and communicates with the other modules through the Medium Speed Controller Area Network (MS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The HVAC module communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The ACM communicates with the scan tool through the Infotainment Controller Area Network (I-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The DDM communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The PDM communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The Image Processing Module - B (IPM-B) communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The GPSM communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN).
Visual Inspection and Diagnostic Pre-checks
Verify BCM fuse 67 (7.5A) is OK.
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The Parking Aid Module (PAM) communicates with the scan tool through the High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The APIM communicates with the scan tool through the High Speed Controller Area Network (HS-CAN) and communicates with the other modules through the Medium Speed Controller Area Network (MS-CAN) and Infotainment Controller Area Network (I-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The FCIM communicates with the scan tool through the Infotainment Controller Area Network (I-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The RFA module communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The TCM communicates with the scan tool through the Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The PSCM communicates with the scan tool through the High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The TCU communicates with the scan tool through the Infotainment Controller Area Network (I-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The BECM communicates with the scan tool through the Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The SOBDM communicates with the scan tool through the Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The ACCM communicates with the scan tool through the Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The Direct Current/Direct Current (DC/DC) Converter Control Module communicates with the scan tool through the Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The GFM communicates with the scan tool through the Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
The GWM communicates with the scan tool through the High Speed Controller Area Network (HS-CAN), Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN), Medium Speed Controller Area Network (MS-CAN) and Infotainment Controller Area Network (I-CAN). The GWM operates as a gateway for communication between the modules on the High Speed Controller Area Network (HS-CAN), Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN) and Infotainment Controller Area Network (I-CAN) networks.
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
REFER to: COMMUNICATIONS NETWORK - SYSTEM OPERATION AND COMPONENT DESCRIPTION (418-00 Module Communications Network, Description and Operation).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
REFER to: COMMUNICATIONS NETWORK - SYSTEM OPERATION AND COMPONENT DESCRIPTION (418-00 Module Communications Network, Description and Operation).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
REFER to: COMMUNICATIONS NETWORK - SYSTEM OPERATION AND COMPONENT DESCRIPTION (418-00 Module Communications Network, Description and Operation).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
Refer to SYSTEM WIRING DIAGRAMS for additional information.
REFER to: COMMUNICATIONS NETWORK - SYSTEM OPERATION AND COMPONENT DESCRIPTION (418-00 Module Communications Network, Description and Operation).
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).
The scan tool is connected to the DLC to communicate with the High Speed Controller Area Network (HS-CAN), Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN), Medium Speed Controller Area Network (MS-CAN) and the Infotainment Controller Area Network (I-CAN). A loss of ground or poor ground at the DLC can result in High Speed Controller Area Network (HS-CAN), Electric Vehicle (EV) High Speed Controller Area Network (HS-CAN), Medium Speed Controller Area Network (MS-CAN) or Infotainment Controller Area Network (I-CAN) faults while the scan tool is connected.