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Home >> Lincoln >> 2008 >> Navigator RWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Cluster (Ic), Message Center, And Warning Chimes >> Diagnostic Tests >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test AT: The Key-In-Ignition Warning Chime Is Inoperative >> Pinpoint Test At: The Key-In-Ignition Warning Chime Is Inoperative

Pinpoint Test At: The Key-In-Ignition Warning Chime Is Inoperative

  1. AT1 CHECK THE INTERIOR LIGHTS OPERATION 
    • Key in OFF position.
    • Open then close the driver door while observing the interior lights.
    • Do the interior lights operate correctly? 
    1. YES  : Go to  AT2.
    2. NO  : REFER to INTERIOR LIGHTING article.
  2. AT2 RETRIEVE THE RECORDED DTCs FROM THE CONTINUOUS AND ON-DEMAND SJB SELF-TESTS 
    • Check the recorded DTCs from the SJB self-tests.
    • Is DTC B1352 present? 
    1. YES  : Go to  AT3.
    2. NO  : Go to  AT4.
  3. AT3 CHECK THE IGNITION SWITCH 
    • Disconnect: Ignition Switch C250
    • Carry out the ignition switch component test. Refer to COMPONENT TESTING.
    • Is the ignition switch OK? 
    1. YES  : REPAIR circuit CDC30 (BU/GY) for an open or short to ground. CLEAR the DTCs. REPEAT the self-test.
    2. NO  : INSTALL a new ignition switch. REFER to STEERING COLUMN SWITCHES article. CLEAR the DTCs. REPEAT the self-test.
  4. AT4 CHECK FOR CORRECT SJB OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the SJB 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 SJB. 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.