LEMON Manuals: Even more car manuals for everyone
Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Cluster (Ic), Message Center, And Warning Chimes >> Diagnostic Tests >> Instrument Cluster (IC), Message Center and Warning Chimes >> Symptom Charts

Symptom Charts

Symptom Chart - Instrument Cluster (IC)

Condition Possible Sources Action
  • No communication with the instrument cluster (IC)
  • Fuse(s)
  • Wiring, terminals or connectors
  • Instrument cluster (IC)
  • No communication with the smart junction box (SJB)
  • Fuse(s)
  • Wiring, terminals or connectors
  • SJB
  • The instrument cluster (IC) is inoperative
  • Fuse(s)
  • Wiring, terminals or connectors
  • Instrument cluster (IC)
  • Incorrect fuel gauge indication - front wheel drive (FWD)
  • Wiring, terminals or connectors
  • Fuel pump module assembly
  • Fuel level sensor (float and card)
  • Fuel tank
  • Instrument cluster (IC)
  • Incorrect fuel gauge indication - all wheel drive (AWD)
  • Wiring, terminals or connectors
  • Fuel pump module assembly
  • Secondary fuel level sensor
  • Fuel level sensor (float and card)
  • Fuel tank
  • Instrument cluster (IC)
  • Incorrect temperature gauge indication
  • Instrument cluster (IC)
  • The tachometer is inoperative
  • Instrument cluster (IC)
  • The speedometer/odometer is inoperative
  • PCM
  • Instrument cluster (IC)
  • Incorrect speedometer indication
  • Tire size configuration
  • Axle ratio configuration
  • PCM
  • Instrument cluster (IC)
  • The low fuel indicator is never/always on (if equipped)
  • Instrument cluster (IC)
  • The brake warning indicator is never on
  • Wiring, terminals or connectors
  • Parking brake warning indicator switch
  • Brake fluid level switch (part of the brake fluid reservoir)
  • SJB
  • Instrument cluster (IC)
  • The brake warning indicator is always on
  • Wiring, terminals or connectors
  • Parking brake warning indicator switch
  • Brake fluid level switch (part of the brake fluid reservoir)
  • Base brake system
  • SJB
  • Instrument cluster (IC)
  • The ABS warning indicator is never/always on
  • ABS module
  • Instrument cluster (IC)
  • The safety belt warning indicator is never/always on
  • Restraints control module (RCM)
  • Instrument cluster (IC)
  • The air bag warning indicator is never/always on
  • RCM
  • Instrument cluster (IC)
  • The tire pressure monitoring system (TPMS) warning indicator is never/always on
  • Tire pressure
  • TPMS concern
  • SJB
  • Instrument cluster (IC)
  • The door ajar warning indicator is never/always on
  • Interior lamps concern
  • SJB
  • Instrument cluster (IC)
  • The high beam indicator is never/always on
  • SJB
  • Instrument cluster (IC)
  • The LH/RH turn signal indicator is never/always on
  • SJB
  • Instrument cluster (IC)
  • The anti-theft indicator is never/always on
  • Passive anti-theft system (PATS) concern
  • Instrument cluster (IC)
  • The anti-theft indicator is never on (does not prove-out)
  • Instrument cluster (IC)
  • The low oil pressure warning indicator is never/always on
  • Wiring, terminals or connectors
  • Oil pressure switch
  • Base engine concern
  • SJB
  • Instrument cluster (IC)
  • The malfunction indicator lamp (MIL) is never/always on
  • PCM
  • Instrument cluster (IC)
  • The powertrain malfunction (wrench) warning indicator is never/always on
  • Transmission control module (TCM)
  • PCM
  • 4X4 control module (if equipped)
  • Instrument cluster (IC)
  • The check fuel cap warning indicator is never/always on
  • PCM
  • Instrument cluster (IC)
  • The speed control indicator is never/always on
  • PCM
  • Instrument cluster (IC)
  • The traction assist indicator is never/always on
  • Traction assist system
  • PCM
  • Instrument cluster (IC)
  • The charging system warning indicator is never/always on
  • Charging system concern
  • PCM
  • Instrument cluster (IC)
  • The O/D OFF indicator is never/always on
  • TCM
  • Instrument cluster (IC)
Symptom Chart - Information And Message Center

Condition Possible Sources Action
  • The message center is not operating correctly
  • Message center switch concern
  • Instrument cluster (IC)
  • The message center switch does not operate correctly
  • Wiring, terminals or connectors
  • Message center switch
  • Instrument cluster (IC)
  • The message center display is blank
  • Instrument cluster (IC)
  • The compass is inoperative
  • Fuse
  • Wiring, terminals or connectors
  • Compass module
  • The COMPASS ERROR message is inoperative
  • Fuse
  • Wiring, terminals or connectors
  • Compass module (early build)
  • Auto-dimming interior mirror (late build)
  • The compass is inaccurate
  • Zone setting
  • Calibration
  • Vehicle magnetization
  • Compass module (early build)
  • Auto-dimming interior mirror (late build)
  • The DRIVER DOOR, PASSENGER DOOR, REAR LEFT DOOR, REAR RIGHT DOOR or TRUNK AJAR warning message is inoperative
  • Smart junction box (SJB)
  • Instrument cluster (IC)
  • The LOW FUEL LEVEL warning message is inoperative
  • Fuel gauge
  • Instrument cluster (IC)
  • The distance to empty (DTE)/average fuel economy is inoperative
  • Instrument cluster (IC)
  • CHECK the operation of the speedometer, the odometer, and the fuel gauge.
    • If the speedometer, odometer, or fuel gauge do not operate correctly, go to Pinpoint Test B  (fuel gauge, front wheel drive [FWD]), go to Pinpoint Test C  (fuel gauge, all wheel drive [AWD]) or Go to Pinpoint Test F  (speedometer).
    • If the speedometer, odometer, and fuel gauge operate correctly, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
  • The LOW TIRE PRESSURE, TIRE PRESSURE SENSOR FAULT or TIRE PRESSURE MONITOR FAULT warning message is inoperative/always on
  • SJB
  • Instrument cluster (IC)
  • VERIFY that the tire pressure monitoring system (TPMS) warning indicator operates correctly.
    • If the TPMS reconfigurable telltale indicator does not operate correctly, go to Pinpoint Test N .
    • If the TPMS warning indicator operates correctly, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
  • The CHECK CHARGING SYSTEM warning message is inoperative
  • Instrument cluster (IC)
  • OBSERVE the charging system warning indicator.
    • If the charging system warning indicator does not operate correctly, go to Pinpoint Test Y .
    • If the charging system warning indicator operates correctly, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
  • The LOW BRAKE FLUID LEVEL warning message is inoperative
  • Instrument cluster (IC)
  • OBSERVE the BRAKE warning indicator.
    • If the BRAKE warning indicator does not operate correctly, go to Pinpoint Test I .
    • If the BRAKE warning indicator operates correctly, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
  • The CHECK BRAKE SYSTEM warning message is inoperative
  • Instrument cluster (IC)
  • OBSERVE the BRAKE warning indicator.
    • If the BRAKE warning indicator does not operate correctly, go to Pinpoint Test I .
    • If the BRAKE warning indicator operates correctly, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
  • The PARK BRAKE ENGAGED message is inoperative
  • Instrument cluster (IC)
  • OBSERVE the BRAKE warning indicator.
    • If the BRAKE warning indicator does not operate correctly, go to Pinpoint Test I .
    • If the BRAKE warning indicator operates correctly, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
  • The CHECK RIGHT HEADLAMP/CHECK LEFT HEADLAMP message is inoperative
  • SJB
  • Instrument cluster (IC)
  • OBSERVE the headlamps for correct operation.
  • The CHECK LF, RF, LR, and RR TURN LAMP message is inoperative
  • SJB
  • Instrument cluster (IC)
  • OBSERVE the turn signals for correct operation.
Symptom Chart - Warning Chimes

Condition Possible Sources Action
  • No communication with the instrument cluster (IC)
  • Fuse(s)
  • Wiring, terminals or connectors
  • Instrument cluster (IC)
  • All the chimes are inoperative
  • Instrument cluster (IC)
  • The key-in-ignition warning chime is inoperative
  • Wiring, terminals or connectors
  • Key-in-ignition warning switch (part of the ignition switch)
  • Instrument cluster (IC)
  • The headlamps on warning chime is inoperative
  • Instrument cluster (IC)
  • The turn signal left on reminder chime is inoperative
  • Instrument cluster (IC)
  • The chime sounds when the driver door is ajar (no key in ignition and headlamps off)
  • Wiring, terminals or connectors
  • Key-in-ignition warning switch (part of the ignition switch)
  • Instrument cluster (IC)
  • The safety belt warning chime does not operate correctly
  • Instrument cluster (IC)
  • The Belt-Minder® feature does not operate correctly
  • Belt-Minder® deactivated
  • Safety belt warning indication concern
  • Speedometer concern
  • Instrument cluster (IC)
  • The door ajar warning chime is inoperative
  • Instrument cluster (IC)
  • If not equipped with a message center, CHECK the operation of the door ajar warning indicator.
    • If the door ajar warning indicator does not operate correctly, go to Pinpoint Test O .
    • If the door ajar warning indicator operates correctly, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
  • If equipped with a message center, CHECK the operation of the door ajar warning messages.
    • If the door ajar warning messages do not operate correctly, go to Pinpoint Test AG .
    • If the door ajar warning messages operate correctly, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
  • The air bag secondary warning chime is inoperative
  • Instrument cluster (IC)
  • RETRIEVE the recorded instrument cluster (IC) DTCs from the continuous and on-demand self-tests.
    • If instrument cluster (IC) DTC B1868 is not present, the system is operating correctly. The air bag secondary warning chime sounds only when a fault in the air bag warning indicator is present and DTC B1868 is recorded.
    • If instrument cluster (IC) DTC B1868 is present, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) .
  • The parking brake warning chime is inoperative
  • Instrument cluster (IC)
  • CHECK the operation of the brake warning indicator.
    • If the brake warning indicator does not operate correctly, go to Pinpoint Test I .
    • If the brake warning indicator operates correctly, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
  • The low fuel level warning chime is inoperative
  • Instrument cluster (IC)
  • CHECK the operation of the LOW FUEL LEVEL warning message in the message center.
    • If the LOW FUEL LEVEL warning message is not displayed and the fuel level is at or below 80 km (50 miles), go to Pinpoint Test AH .
    • If the LOW FUEL LEVEL warning message is displayed, INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
scientia non olet · About LEMON Manuals