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Home >> Ford >> 2004 >> Excursion 5.4 L, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1836 (MULTIFUNCTION Electronic Modules) >> Diagnostic Tests >> Vehicle Security Module (VSM) >> Symptom Chart
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Symptom Chart

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart

Condition Possible Sources Action
  • No communication with the vehicle security module (VSM)
  • Fuse
  • Wiring, terminals or connectors
  • VSM
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