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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1031 (Horn System) >> Diagnostic Tests >> Horn >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart

Condition Possible Sources Action
  • The horn is inoperative
  • Fuse(s)
  • Circuitry
  • Horn relay
  • Horn
  • Clockspring
  • Horn switch (part of the driver air bag)
  • Smart junction box (SJB)
  • The horn is always on
  • Circuitry
  • Horn relay
  • Clockspring
  • Horn switch (part of the driver air bag)
  • Horn switch harness
  • SJB
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