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Home >> Lincoln >> 2019 >> MKZ Base, AWD >> Repair and Diagnosis >> Electrical >> Gauges >> Information Center - Instrumentation, Message Center And Warning Chimes (2 Of 2) (Except Hybrid) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test AO : The Adaptive Cruise Control Warning Chime Is Inoperative >> Pinpoint Test AO : The Adaptive Cruise Control Warning Chime Is Inoperative

Pinpoint Test AO : The Adaptive Cruise Control Warning Chime Is Inoperative

  1. AO1 CHECK THE SAFETY BELT WARNING CHIME OPERATION

    • Ignition OFF.

    • Ignition ON.

    • Unbuckle the driver safety belt.

    • Monitor the safety belt warning chime when the ignition is transitioned from OFF to RUN for 6 seconds.

    Does the safety belt warning chime operate for approximately 6 seconds? 

    Yes  GO to  AO2
    No  Refer to IPC Guided Routine .

  2. AO2 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

    • Using a diagnostic scan tool, perform the IPC self-test.

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to DTC Chart: Instrument Panel Cluster (IPC) .
    No  GO to  AO3

  3. AO3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Communications Network .
    No  GO to  AO4

  4. AO4 CHECK THE CRUISE CONTROL DISPLAY IN THE MESSAGE CENTER

    • Verify the adaptive cruise control display functions in the message center when the adaptive cruise control is in operation.

    Does the cruise control display operate in the message center? 

    Yes  DIAGNOSE the cruise control system. REFER to: Cruise Control .
    No  GO to Pinpoint Test AC 
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