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Home >> Lincoln >> 2010 >> MKZ AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1112 (Instrument Cluster (Ic), Message Center, And Warning Chimes) >> Diagnostic Tests >> Instrument Cluster (IC) and Warning Chimes >> Pinpoint Tests >> Pinpoint Test AP: The Chime Sounds When The Driver Door Is Ajar (No Key In Ignition And Headlamps Off) >> Pinpoint Test AP: The Chime Sounds When The Driver Door Is Ajar (No Key In Ignition And Headlamps Off)

Pinpoint Test AP: The Chime Sounds When The Driver Door Is Ajar (No Key In Ignition And Headlamps Off)

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. AP1 CHECK THE EXTERIOR LAMPS 
    • Check the exterior lamps for correct operation.
    • Do the exterior lamps operate correctly? 
    1. YES  : Go to  AP2.
    2. NO  : REFER to EXTERIOR LIGHTING article.
  2. AP2 CHECK THE KEY-IN-IGNITION WARNING SWITCH OPERATION 
    • Key in OFF position.
    • Disconnect: Instrument Cluster (IC) C220b
    • Remove the ignition key from the ignition lock cylinder.
      • Fig 1: Checking Key-In-Ignition Warning Switch Operation
      GF0012828Courtesy of FORD MOTOR CO.
    • Measure the resistance between the instrument cluster (IC) C220b-18, circuit 158 (BK/PK), harness side and ground.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  AP4.
    2. NO  : Go to  AP3.
  3. AP3 CHECK CIRCUIT 158 (BK/PK) FOR A SHORT TO GROUND 
    • Remove the ignition lock cylinder. Refer to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS article.
      • Fig 2: Checking Circuit 158 (BK/PK) For A Short To Ground
      GF0012828Courtesy of FORD MOTOR CO.
    • Measure the resistance between the instrument cluster (IC) C220b-18, circuit 158 (BK/PK), harness side and ground.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : INSTALL a new clockspring. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  4. AP4 CHECK FOR CORRECT INSTRUMENT CLUSTER (IC) OPERATION 
    • Disconnect all the instrument cluster (IC) connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed out pins
    • Connect all the instrument cluster (IC) connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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