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Home >> Ford >> 2001 >> Excursion 7.3 F, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1331 (Module Communications Network System) >> Diagnosis And Testing >> Communications Network >> Symptom Chart
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Symptom Chart

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM CHART

Condition Possible Sources Action
  • The powertrain control module (PCM) does not respond to the diagnostic tool
  • Circuit or connection in the high speed controller area network (CAN)
  • PCM
  • The restraint control module (RCM) does not respond to the diagnostic tool
  • Circuit or connection in the international standards organization (ISO) 9141 communication network
  • RCM
  • The anti-lock brake system (ABS) module does not respond to the diagnostic tool
  • Circuit or connection in the high speed controller area network (CAN)
  • ABS module
  • The four-wheel drive (4WD) control module does not respond to the diagnostic tool
  • Circuit or connection in the high speed controller area network (CAN)
  • 4WD control module
  • The parking aid module does not respond to the diagnostic tool
  • Circuit or connection in the international standards organization (ISO) 9141 communication network
  • Parking aid module
  • The smart junction box (SJB) does not respond to the diagnostic tool
  • Circuit or connection in the medium speed controller area network (CAN)
  • SJB
  • The instrument cluster does not respond to the diagnostic tool
  • Circuit or connection in the high speed controller area network (CAN)
  • Instrument cluster
  • No international standards organization (ISO) 9141 communication network communication
  • Circuit or connection in the ISO 9141 communication network
  • ISO 9141 communication networked modules
  • No medium speed controller area network (CAN) communication
  • Circuit or connection in the medium speed CAN
  • Medium speed CAN networked modules
  • No high speed controller area network (CAN) communication
  • Circuit or connection in the high speed CAN
  • High speed CAN networked modules
  • No module/network communication - no voltage to the diagnostic tool
  • Data link connector (DLC)
  • Fuse
  • Circuitry
  • Diagnostic tool
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