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HOMESERVICE MANUALSFORD2021EDGE SE, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 619 (CLIMATE CONTROL SYSTEM - GENERAL INFORMATION (DIAGNOSIS & TESTING - GENERAL PROCEDURES))DIAGNOSIS AND TESTINGCLIMATE CONTROL SYSTEM - VEHICLES WITH: DUAL AUTOMATIC TEMPERATURE CONTROL (DATC)PINPOINT TEST(S)PINPOINT TEST AD: U0111:00
2021 Ford Edge SE, 4WD

Pinpoint Test Ad: U0111:00

2021 Ford Edge SE, 4WDSECTION Pinpoint Test Ad: U0111:00
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 

    The ACCM communicates with the BECM over the CAN. If messages are missing or not received from the BECM, the A/C can be inoperative.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    ACCM U0111:00 Lost Communication With Battery Energy Control Module "A": No Sub Type Information Sets in continuous memory when the ACCM detects network messages are missing from the BECM for more than 5 seconds.

    Possible Sources 

    • Network communication concern
    • ACCM concern
    • BECM concern

  2. AD1 VERIFY THE CONCERN

    • Ignition ON.

    • Verify there is an observable symptom present.

    Is an observable symptom present? 

    Yes  GO to  AD2
    No  The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

  3. AD2 CHECK THE NETWORK COMMUNICATION

    • Using a diagnostic scan tool, carry out the network test.

    Does the BECM pass the network test? 

    Yes  GO to  AD3
    No  REFER to: Controller Area Network (CAN) Module Communications Network .

  4. AD3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, carry out the self-test for the ACCM setting the DTC.

    Are any non-network Diagnostic Trouble Codes (DTCs) present? 

    Yes  DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this information.
    No  GO to  AD4

  5. AD4 CHECK FOR BECM (BATTERY ENERGY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, carry out the BECM self-test.

    Are any non-network Diagnostic Trouble Codes (DTCs) present? 

    Yes  REFER to: High Voltage Battery, Mounting and Cables .
    No  GO to  AD5

  6. AD5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0111:00

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question setting the DTC.

    • Ignition OFF.

    • Ignition ON.

    • Wait 10 seconds.

    • Using a diagnostic scan tool, carry out the self-test for the module in question setting the DTC.

    Is DTC U0111:00 still present? 

    Yes  GO to  AD6
    No  The system is operating correctly at this time. The DTC may have set due to high network traffic or an intermittent fault condition.

  7. AD6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

    NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or Programmable Module Installation (PMI) the may not have been carried out.

    • Check the vehicle service history for recent service actions related to the BECM and the ACCM setting the DTC. If recent service history is found:

      • verify correct replacement module was installed

        • vehicle parts build list may be used to verify correct part fitment

      • verify the configuration of replacement module was correct

        • re-configure module using as-built data if prior configuration is suspect

      • verify the module was not obtained from a like vehicle and installed into vehicle with concern

        • return the swapped module to source vehicle and obtain new replacement module

    • Operate the system and determine if the observable symptom is still present.

    Is the observable symptom still present? 

    Yes  GO to  AD7
    No  The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

  8. AD7 CHECK FOR CORRECT BECM (BATTERY ENERGY CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all the BECM connectors.

    • Repair:

      • corrosion (install new connectors or terminals - clean module pins)
      • damaged or bent pins - install new terminals pins
      • pushed-out pins - install new pins as necessary

    • Reconnect the BECM connectors. Make sure they seat and latch correctly.

    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BECM. REFER to: Battery Energy Control Module (BECM) .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.