Ford Explorer: Module Communications Network / Description and Operation - Communications Network - Overview

Ford Explorer 2020-2025 Service Manual / Electrical / Electrical Distribution / Module Communications Network / Description and Operation - Communications Network - Overview

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. 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 remote DLC, located under the instrument panel. The communication networks are:

  • DIAG 1
  • DIAG 2

The vehicle has 4 or 5 (optional) communication networks that do not communicate directly with the diagnostic scan tool. The GWM translates the messages on these 4 or 5 (optional) networks and transfers the signals to the DIAG 1 and DIAG 2 circuits at the remote DLC. Messages communicated on the HS-CAN1 are communicated to the DIAG 1 connection, all other networks are translated to the DIAG 2 connection at the remote DLC. The communication networks are:

  • HS-CAN1
  • HS-CAN2
  • HS-CAN3
  • HS-CAN4 (optional)
  • MS-CAN

    Module Communications Network

    ..

    Diagnosis and Testing - Communications Network

    Diagnostic Trouble Code (DTC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Informati..

    Other information:

    Ford Explorer 2020-2025 Service Manual: Removal and Installation - Rear Evaporator


    Removal NOTE: The rear evaporator is available only as part of the rear climate control housing. Remove the rear climate control housing. Refer to: Rear Climate Control Housing (412-02 Rear Climate Control, Removal and Installation). Installation Transfer the components from the old housing to the new housing as required...

    Ford Explorer 2020-2025 Service Manual: Removal and Installation - Inner Quarter Panel


    Special Tool(s) / General Equipment Resistance Spotwelding Equipment Scraper for Straight Edges Hot Air Gun 8 mm Drill Bit MIG/MAG Welding Equipment Spot Weld Drill Bit Locking Pliers Materials Name Specification Seam SealerTA-2-B, 3M™ 08308, LORD Fusor® 805DTM -  Flexible Foam Repair3M™ 08463, LORD Fusor® 121 -  Remo..

    Categories

    Children and Airbags

    WARNING: Airbags can kill or injure a child in a child restraint. Never place a rear-facing child restraint in front of an active airbag. If you must use a forward-facing child restraint in the front seat, move the seat upon which the child restraint is installed all the way back.

    read more

     
    Copyright © 2025 www.foexplorer.com