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Symptom Chart: Communication Network

WARNING: This page is about a different car, the 2014 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to DIAGNOSTIC METHODS for information regarding Ford-specific diagnostic practices.

SYMPTOM CHART COMMUNICATION NETWORK

Condition Possible Sources Actions
  • The vehicle does not start with the scan tool connected to the Data Link Connector (DLC) and/or multiple malfunction indicators are only on when the scan tool is connected to the DLC 
  • Wiring, terminals or connectors
  • Scan tool
  • The Powertrain Control Module (PCM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • PCM 
  • The ABS  module does not respond to the scan tool
  • Wiring, terminals or connectors
  • ABS  module
  • The Restraints Control Module (RCM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • RCM 
  • The Front Control/Display Interface Module (FCDIM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • FCDIM 
  • The Occupant Classification System Module (OCSM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • OCSM 
  • The Steering Column Control Module (SCCM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • SCCM 
  • The Instrument Panel Cluster (IPC) does not respond to the scan tool
  • Wiring, terminals or connectors
  • IPC 
  • The Body Control Module (BCM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • BCM 
  • The Heating Ventilation Air Conditioning (HVAC) module does not respond to the scan tool
  • Wiring, terminals or connectors
  • HVAC  module
  • The Audio Front Control Module (ACM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • ACM 
  • The audio Digital Signal Processing (DSP) module does not respond to the scan tool
  • Wiring, terminals or connectors
  • Audio DSP  module
  • The Front Lighting Control Module (FLM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • FLM 
  • The Liftgate/Trunk Module (LTM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • LTM 
  • The Driver Seat Module (DSM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • DSM 
  • The Global Positioning System Module (GPSM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • GPSM 
  • The Dual Climate Controlled Seat Module (DCSM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • DCSM 
  • The Parking Aid Module (PAM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • PAM 
  • The Accessory Protocol Interface Module (APIM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • APIM 
  • The Head Up Display (HUD) module does not respond to the scan tool
  • Wiring, terminals or connectors
  • HUD  module
  • The Cruise-Control Module (C-CM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • C-CM 
  • The Side Obstacle Detection Control Module - Left (SOD-L) does not respond to the scan tool
  • Wiring, terminals or connectors
  • SOD-L 
  • The Side Obstacle Detection Control Module - Right (SOD-R) does not respond to the scan tool
  • Wiring, terminals or connectors
  • SOD-R 
  • The Tire Pressure Monitor (TPM) module does not respond to the scan tool
  • Wiring, terminals or connectors
  • TPM  module
  • The Front Controls Interface Module (FCIM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • FCIM 
  • The Remote Function Actuator (RFA) module does not respond to the scan tool
  • Wiring, terminals or connectors
  • RFA  module
  • The All Terrain Control Module (ATCM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • ATCM 
  • The Power Steering Control Module (PSCM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • PSCM 
  • The Transmission Control Module (TCM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • TCM 
  • The Heated Steering Wheel Module (HSWM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • HSWM 
  • The Image Processing Module - A (IPM-A) does not respond to the scan tool
  • Wiring, terminals or connectors
  • IPM-A 
  • The Generic Function Module (GFM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • GFM 
  • No HS-CAN  communication, all modules are not responding
  • Wiring, terminals or connectors
  • DLC 
  • APIM  (if equipped)
  • ATCM  (if equipped)
  • ABS  module
  • BCM 
  • C-CM  (if equipped)
  • GFM  (if equipped)
  • HUD  module (if equipped)
  • IPM-A  (if equipped)
  • IPC 
  • OCSM 
  • PAM  (if equipped)
  • PSCM 
  • PCM 
  • RCM 
  • SCCM 
  • TCM  (if equipped)
  • No MS-CAN  communication, all modules are not responding
  • Wiring, terminals or connectors
  • DLC 
  • APIM  (if equipped)
  • BCM  (if equipped)
  • DSM  (if equipped)
  • DCSM  (if equipped)
  • HSWM  (if equipped)
  • HVAC  module
  • GPSM  (if equipped)
  • LTM  (if equipped)
  • RFA  module (if equipped)
  • SOD-L  (if equipped)
  • SOD-R  (if equipped)
  • TPM  module
  • No I-CAN  communication, all modules are not responding
  • Wiring, terminals or connectors
  • DLC 
  • APIM  (if equipped)
  • ACM 
  • Audio DSP  module (if equipped)
  • FCIM  (if equipped)
  • FCDIM  (if equipped)
  • IPC 
  • No power to the DLC 
  • Fuse
  • Wiring, terminals or connectors
  • DLC 
  • Scan tool