LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2004 >> Thunderbird >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Module Communications Network >> Diagnosis And Testing >> Communications Network >> Symptom Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Symptom Chart

SYMPTOM CHART

Condition Possible Sources Action
  • The anti-lock brake system (ABS) module does not respond to the diagnostic tool
  • Circuit or connection in the standard corporate protocol (SCP) communication network.
  • ABS module.
  • The front electronic module (FEM) does not respond to the diagnostic tool
  • Circuit or connection in the standard corporate protocol (SCP) communication network.
  • FEM.
  • No communication with the front electronic module (FEM)
  • Central junction box (CJB) fuse(s):
    • 20 (10A)
    • 30 (5A)
    • 33 (10A)
  • Circuitry
  • FEM.
  • The restraint control module (RCM) does not respond to the diagnostic tool
  • Circuit or connection in the international standards organization (ISO) 9141 network.
  • RCM.
  • The instrument cluster does not respond to the diagnostic tool
  • Circuit or connection in the standard corporate protocol (SCP) communication network.
  • Instrument cluster.
  • The powertrain control module (PCM) does not respond to the diagnostic tool
  • Circuit or connection in the controller area network (CAN) communication network.
  • PCM.
  • The dual automatic temperature control (DATC) module does not respond to the diagnostic tool
  • Circuit or connection in the standard corporate protocol (SCP) communication network.
  • DATC module.
  • The audio control module (ACM) does not respond to the diagnostic tool
  • Circuit or connection in the standard corporate protocol (SCP) communication network.
  • ACM.
  • The remote keyless entry (RKE) module does not respond to the diagnostic tool
  • Circuit or connection in the standard corporate protocol (SCP) communication network.
  • RKE module.
  • No communication with the remote keyless entry (RKE) module
  • Central junction box (CJB) fuse 7 (5A)
  • Circuitry
  • RKE module.
  • The rear electronic module (REM) does not respond to the diagnostic tool
  • Circuit or connection in the standard corporate protocol (SCP) communication network.
  • REM.
  • No communication with the rear electronic module (REM)
  • Battery junction box (BJB) fuse(s):
    • 28 (30A)
    • 12 (5A)
    • 1 (15A)
  • Circuitry.
  • REM.
  • No powertrain control module (PCM) standard corporate protocol (SCP) network communication
  • Circuit or connection in the SCP communication network.
  • PCM.
  • No international standards organization (ISO) 9141 network communication
  • Circuit or connection in the ISO 9141 network.
  • Data link connector (DLC).
  • ISO 9141 network modules.
  • No standard corporate protocol (SCP) network communication
  • Circuit or connection in the SCP communication network.
  • Data link connector (DLC).
  • SCP network modules.
  • No module/network communication - no response from the diagnostic tool
  • Central junction box (CJB) fuse 6 (10A).
  • Circuitry.
  • Data link connector (DLC).
  • Diagnostic tool.