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Home >> Ford >> 2012 >> Econoline Base, Van Cargo >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 79 (Interior Lighting System) >> Diagnosis And Testing >> Interior Lighting >> Symptom Chart
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Symptom Chart

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SYMPTOM CHART

Condition Possible Sources Action
  • The courtesy lamps flash on and off
  • The Smart Junction Box (SJB) is not configured correctly.
  • The courtesy lamps do not turn on with a door open
  • Wiring, terminals or connectors
  • Door ajar switch
  • Body builder equipment
  • SJB
  • The courtesy lamps do not turn on from the instrument panel dimmer switch
  • Wiring, terminals or connectors
  • Instrument panel dimmer switch
  • SJB
  • The interior courtesy lamp(s) are inoperative
  • Fuse
  • Wiring, terminals or connectors
  • Interior lamp
  • Body builder equipment
  • SJB
  • All the courtesy lamps stay on continuously
  • Wiring, terminals or connectors
  • Door ajar switch
  • Instrument panel dimmer switch
  • Body builder equipment
  • SJB
  • All the demand lamps are inoperative
  • Fuse
  • Wiring, terminals or connectors
  • Interior lamp
  • Body builder equipment
  • SJB
  • An individual demand lamp is inoperative
  • Wiring, terminals or connectors
  • Sun visor
  • Interior lamp
  • Body builder equipment
  • The battery saver does not deactivate after time-out
  • Wiring, terminals or connectors
  • Body builder equipment
  • SJB