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Home >> Lincoln >> 2020 >> Nautilus Base, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Information Center - Instrumentation, Message Center And Warning Chimes (2 Of 2) >> Diagnosis And Testing >> Instrumentation, Message Center And Warning Chimes >> Pinpoint Tests >> Pinpoint Test AQ: The Adaptive Cruise Control Warning Chime Is Inoperative >> Pinpoint Test AQ: The Adaptive Cruise Control Warning Chime Is Inoperative

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

  1. AQ1 CHECK THE SEATBELT WARNING CHIME OPERATION

    • Ignition OFF.

    • Ignition ON.

    • Unbuckle the driver seatbelt.

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

    Does the seatbelt warning chime operate for approximately 6 seconds? 

    Yes  GO to  AQ2
    No  Refer to IPC Guided Routine Testing .

  2. AQ2 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: IPC .
    No  GO to  AQ3

  3. AQ3 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  AQ4

  4. AQ4 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  DIAGNOSE the cruise control RTT indicator. GO to Pinpoint Test AF 
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