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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1690 (Information Center - Instrumentation, Message Center And Warning Chimes) >> Diagnostic Tests >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test AA: The DOOR AJAR Warning Is Inoperative >> Pinpoint Test Aa: The Door Ajar Warning Is Inoperative

Pinpoint Test Aa: The Door Ajar Warning Is Inoperative

WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
  1. AA1 CHECK THE OPERATION OF THE INTERIOR LAMPS 
    • Open and close each door and monitor the interior lamps.
    • Do the interior lamps operate correctly? 
    1. YES  : Go to  AA2.
    2. NO  : REFER to INTERIOR LIGHTING article to continue diagnosis of the interior lamps.
  2. AA2 MONITOR THE DDM PIDs 
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: DDM DataLogger
    • Select the door ajar status PIDs (D_DR_SW, P_DR_SW). Monitor the door ajar status PIDs while opening and closing the doors.
    • Do the PIDs agree with the door position? 
    1. YES  : Go to  AA3.
    2. NO  : Go to  AA4.
  3. AA3 CHECK FOR CORRECT INSTRUMENT CLUSTER (IC) OPERATION 
    • Disconnect the instrument cluster (IC) connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the instrument cluster (IC) connector and make sure it seats 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.
  4. AA4 CHECK FOR CORRECT DDM OPERATION 
    • Disconnect all the DDM connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the DDM 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 DDM. REFER to MULTIFUNCTION ELECTRONIC MODULES article. 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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