Pinpoint Test A: The Pedestrian Alert System Is Inoperative

2021 Ford Edge SE, 4WDSECTION Pinpoint Test A: The Pedestrian Alert System Is Inoperative
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. Normal Operation and Fault Conditions 

    See Pedestrian Alert System description. REFER to: Pedestrian Alert System - System Operation and Component Description .

    The PACM receives a hot at all times voltage from the BJB. The PACM receives the ignition status message for the RUN/START or ACC input from the BCM through the GWM over the HS-CAN3.

    Possible Sources 

    • Fuse
    • Communication concern
    • PACM

  2. A1 PERFORM THE NETWORK TEST FOR ALL MODULES

    • Using a diagnostic scan tool, perform a network test.

    Do all equipped modules pass the network test? 

    Yes  GO to  A2
    No 
  3. A2 PERFORM THE PACM (PEDESTRIAN ALERT CONTROL MODULE) MODULE SELF-TEST

    • Ignition ON.

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

    • Check for recorded Diagnostic Trouble Codes (DTCs) from the PACM module self-test.

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to DTC Chart: PACM.
    No  GO to  A3
  4. A3 CHECK THE SOUNDER OPERATION

    • NOTE: Make sure the vehicle is operating in electric mode (engine not running).

      Operate the vehicle in a forward range between 0-30 km/h (0-8 mph) and verify whether the pedestrain alert system sounder operates.

    Does the pedestrian alert system sounder operate? 

    Yes  INSTALL a new sounder. REFER to: Pedestrian Alert System Speaker .
    No  REINSTALL the original sounder. INSTALL a new PACM. REFER to: Pedestrian Alert Control Module (PACM) .
RENDER: 1.0x

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