Symptom Chart

2009 Mercury Milan Premier, 3.0 1, AWDSECTION Symptom Chart
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. 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 smart junction box (SJB)
  • Fuse(s).
  • Circuitry open/shorted.
  • Smart junction box (SJB).
  • The interior lamps are inoperative
  • Fuse(s).
  • Circuitry open.
  • Smart junction box (SJB).
  • The interior lamps are inoperative using the dimmer control
  • Circuitry open.
  • Dimmer control.
  • Smart junction box (SJB).
  • Any interior or cargo lamp are inoperative
  • Lamp.
  • Circuitry open.
  • Smart junction box (SJB).
  • The puddle lamps are inoperative
  • Lamp.
  • Circuitry open.
  • Smart junction box (SJB).
  • The interior lamps stay on continuously
  • Door ajar switch(es).
  • Circuitry open/shorted.
  • Smart junction box (SJB).
  • The interior lamps do not turn on with one door open
  • Door ajar switch(es).
  • Circuitry shorted.
  • Smart junction box (SJB).
  • The demand lighting is inoperative
  • Circuitry open.
  • Smart junction box (SJB).
  • An individual demand lamp is inoperative
  • Circuitry open.
  • Lamp.
  • The illuminated entry is inoperative when using the remote keyless entry (RKE) transmitter/keyless entry keypad
  • Circuitry open.
  • Smart junction box (SJB).
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.