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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Exterior Lighting System) >> Diagnostic Tests >> Public Safety - Police Package >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart

Condition Possible Sources Action
  • The spotlamp is inoperative/always on
  • Fuse
  • Wiring, terminals or connectors
  • Spotlamp
  • The package tray lamps do not operate correctly
  • Fuse
  • Wiring, terminals or connectors
  • Package tray lamp
  • Emergency flasher relay
  • The decklid flashing lamps do not operate correctly
  • Fuse
  • Wiring, terminals or connectors
  • Rear flasher
  • Rear flasher relay
  • The alternating flashing headlamps are inoperative
  • Wiring, terminals or connectors
  • Wig-wag module
  • The public safety equipment power supply is inoperative
  • Fuse
  • Wiring, terminals or connectors
  • Police power relay
  • The rear deck light emitting diode (LED) flasher is inoperative
  • Wiring, terminals or connectors
  • Rear deck LED flasher
  • The strobe lamps are inoperative
  • Fuse
  • Wiring, terminals or connectors
  • Strobe lamp
  • Strobe lamp control module