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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 message center is not operating correctly
  • Message center switch(es)
  • Instrument cluster
  • The message center display is blank
  • Instrument cluster
  • VERIFY that the message center display mode is turned on, then CARRY OUT the instrument cluster self-diagnostic test to illuminate all segments of the message center display. If the message center display is illuminated, the system is working correctly at this time.
    • If the message center display is inoperative, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
  • The message center switch does not operate correctly
  • Circuitry
  • Message center switch(es)
  • Instrument cluster
  • The TURN SIGNAL ON warning is inoperative
  • Turn signals
  • Instrument cluster configuration
  • Instrument cluster
  • The SPEED CONTROL ON warning is inoperative (Hybrid)
  • Instrument cluster
  • The SERVICE BRAKE SYSTEM warning is inoperative
  • Instrument cluster
  • Smart junction box (SJB)
  • CHECK the correct operation of the stoplamps.
    • If the stoplamps operate correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    • If the stoplamps do not operate correctly, REFER to EXTERIOR LIGHTING article to continue diagnosis of the stoplamps.
  • The SERVICE EMISSION SYSTEM warning is inoperative
  • Circuitry
  • Powertrain control module (PCM)
  • Instrument cluster
  • RETRIEVE the PCM DTCs. If PCM DTCs are retrieved, REFER to the Introduction - Gasoline Engines article to continue diagnosis.
    • If no DTCs are retrieved, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
  • The high engine temperature, high engine temperature with performance reduced, and high engine temperature with stop engine safely warning is inoperative (Escape, Mariner)
  • Circuitry
  • Engine coolant temperature (ECT) sensor
  • PCM
  • Instrument cluster
  • TURN the ignition switch to the RUN position and OBSERVE the operation of the engine temperature gauge.
    • If the engine temperature gauge operates correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    • If the engine temperature gauge does not operate correctly, REFER to INSTRUMENT CLUSTER article to continue diagnosis of the engine temperature gauge.
  • The high engine temperature, high engine temperature with performance reduced, and high engine temperature with stop engine safely warning is inoperative (Hybrid)
  • Circuitry
  • ECT sensor
  • PCM
  • Instrument cluster
  • CHECK if the overtemp warning indicator is illuminated.
    • If the overtemp warning indicator is illuminated, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    • If the overtemp warning indicator is not illuminated, RETRIEVE the PCM DTCs. If PCM DTCs are retrieved, REFER to the Introduction - Gasoline Engines article to continue diagnosis.
    • If no PCM DTCs are retrieved, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
  • The SERVICE 4x4 warning is inoperative (Escape, Mariner)
  • Four-wheel drive (4WD) system
  • The PARK BRAKE ON warning is inoperative
  • Circuitry
  • Parking brake switch
  • SJB
  • Instrument cluster
  • CHECK the operation of the brake warning indicator.
    • If the brake warning indicator operates correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    • If the brake warning indicator does not operate correctly, REFER to INSTRUMENT CLUSTER article to continue diagnosis of the brake warning indicator.
  • The LOW BRAKE FLUID warning is inoperative
  • Circuitry
  • Anti-lock brake system (ABS) module
  • Instrument cluster
  • CHECK the operation of the brake warning indicator.
    • If the brake warning indicator operates correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    • If the brake warning indicator does not operate correctly, REFER to INSTRUMENT CLUSTER article to continue diagnosis of the brake warning indicator.
  • The door ajar warning is inoperative
  • Door ajar switch
  • SJB
  • Instrument cluster
  • TURN the ignition switch to the ON position and CHECK the operation of the interior lamps.
    • If the interior lamps operate correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    • If the interior lamps do not operate correctly, REFER to INTERIOR LIGHTING article to continue diagnosis of the interior lamps.
  • The LOW FUEL level warning is inoperative
  • Circuitry
  • Instrument cluster
  • CHECK the operation of the fuel gauge.
    • If the fuel gauge operates correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    • If the fuel gauge does not operate correctly, REFER to INSTRUMENT CLUSTER article to continue diagnosis of the fuel gauge.
  • The check exterior lamps warning is inoperative
  • SJB
  • Instrument cluster
  • VERIFY that the SJB is correctly configured for the lamp outage. REFER to MODULE CONFIGURATION article.
  • CHECK the operation of the exterior lamps.
    • If all of the exterior lamps operate correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    • If any exterior lamp does not operate correctly, REFER to EXTERIOR LIGHTING article to continue diagnosis of the exterior lamps.
  • The CHECK FUEL CAP warning is inoperative
  • PCM
  • Instrument cluster
  • RETRIEVE the DTCs.
    • If no DTCs are retrieved, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
  • The low tire monitor fault, or tire sensor fault warning is inoperative
  • Circuitry
  • SJB
  • Instrument cluster
  • OBSERVE the operation of the low tire pressure warning indicator.
    • If the low tire pressure warning indicator operates correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    • If the low tire pressure warning indicator does not operate correctly, REFER to INSTRUMENT CLUSTER article to continue diagnosis of the low tire pressure warning indicator.
  • The compass is inoperative
  • Fuse
  • Circuitry
  • Compass sensor module
  • The compass is inaccurate
  • Zone setting
  • Calibration
  • Vehicle magnetization
  • Compass sensor module
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