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Symptom Chart

SYMPTOM CHART

Condition Possible Sources Action
  • No communication with the navigation system module
  • Central junction box (CJB) fuses:
    • 3 (20A)
    • 6 (5A)
  • Circuitry.
  • Navigation system module.
  • Navigation system does not operate correctly - the global positioning system (GPS) antenna signal is inoperative
  • Circuitry.
  • GPS antenna.
  • Navigation system module.
  • Navigation system does not operate correctly - the position cursor is inoperative
  • Circuitry.
  • Audio unit.
  • Navigation system
  • Module.
  • Navigation system does not operate correctly - the voice guidance is inoperative/does not operate correctly
  • Circuitry.
  • Audio unit.
  • Navigation system module.
  • Navigation system does not operate correctly - the display screen is inoperative
  • Circuitry.
  • Audio unit.
  • Navigation system module.
  • Navigation system does not operate correctly - the navigation screen is inoperative
  • Circuitry.
  • Audio unit.
  • Navigation system module.
  • Navigation system does not operate correctly - the audible switches are inoperative
  • Circuitry.
  • Audio unit.
  • Navigation system module.
  • Navigation system does not operate correctly - unable to insert or eject map disc
  • Circuitry.
  • Navigation system module.
  • Navigation system does not operate correctly - the audio unit is inoperative
  • Central junction box (CJB) fuses
    • 3 (20A)
    • 6 (5A)
    • 27 (5A)
  • Circuitry.
  • Audio unit.
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