Symptom Chart

2010 Mercury Mariner Hybrid, AWDSECTION Symptom Chart
WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. 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
  • Instrument cluster
  • The message center switch does not operate correctly
  • Circuitry
  • Message center switch
  • Instrument cluster
  • The message center display is blank
  • Instrument cluster
  • INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
  • The compass is inoperative
  • Fuse
  • Circuitry
  • Compass module
  • Instrument cluster
  • The COMPASS DATA ERROR warning is incorrect
  • Fuse
  • Circuitry
  • Compass module
  • Instrument cluster
  • The compass is inaccurate
  • Zone setting
  • Calibration
  • Vehicle magnetization
  • Compass module
  • The DRIVER DOOR, PASSENGER DOOR, REAR LEFT DOOR, REAR RIGHT DOOR AJAR warning is incorrect
  • Smart junction box (SJB)
  • Instrument cluster.
  • The LOW FUEL LEVEL warning is incorrect
  • Fuel tank
  • Fuel pump sender
  • Instrument cluster
  • The CHECK CHARGING SYSTEM warning is incorrect
  • Instrument cluster
  • OBSERVE the charging system warning indicator.
    • If the charging system warning indicator operates correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
    • If the charging system warning indicator does not operate correctly, REFER to INSTRUMENT CLUSTER to continue diagnosis of the charging system warning indicator.
  • The LOW BRAKE FLUID LEVEL warning is incorrect
  • Instrument cluster
  • OBSERVE the BRAKE warning indicator.
    • If the BRAKE warning indicator operates correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
    • If the BRAKE warning indicator does not operate correctly, REFER to INSTRUMENT CLUSTER to continue diagnosis of the BRAKE warning indicator.
  • The CHECK BRAKE SYSTEM warning is incorrect
  • Instrument cluster
  • OBSERVE the BRAKE warning indicator.
    • If the BRAKE warning indicator operates correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
    • If the BRAKE warning indicator does not operate correctly, REFER to INSTRUMENT CLUSTER to continue diagnosis of the BRAKE warning indicator.
  • The PARK BRAKE ENGAGED warning is incorrect
  • Instrument cluster
  • OBSERVE the BRAKE warning indicator.
    • If the BRAKE warning indicator operates correctly, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
    • If the BRAKE warning indicator does not operate correctly, REFER to INSTRUMENT CLUSTER to continue diagnosis of the BRAKE warning indicator.
  • The CHECK RIGHT HEADLAMP/CHECK LEFT HEADLAMP warning is incorrect
  • Smart junction box (SJB)
  • Instrument cluster
  • OBSERVE the headlamps for correct operation.
  • The CHECK FRONT TURN SIGNAL LAMP/CHECK REAR TURN SIGNAL LAMP warning is incorrect
  • Smart junction box (SJB)
  • Instrument cluster
  • OBSERVE the turn signals for correct operation.
    • If the turn signals operate correctly, INSTALL a new smart junction box (SJB). REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . TEST the system for normal operation.
    • If the turn signals do not operate correctly, REFER to EXTERIOR LIGHTING to continue diagnosis of the turn signals.
RENDER: 1.0x

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When to See a Mechanic

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

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