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Pinpoint Test B: U0111:87

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. Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information.

    Normal Operation and Fault Conditions 

    REFER to: Module Controlled Functions - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    BCMC U0111:87 Lost Communication With Battery Energy Control Module "A": Missing Message A continuous memory DTC that sets in the BCMC if data messages received from the BECM "A" are missing.

    Possible Sources 

    • Communication network concern
    • Charging system concern
    • BECM "A"
    • BCMC (BJB)

  2. B1 CHECK THE COMMUNICATION NETWORK

    • Ignition ON.

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

    Does the BECM "A" pass the network test? 

    Yes  GO to B2 
    No  REFER to: Module Controlled Functions - System Operation and Component Description .

  3. B2 CHECK THE BECM (BATTERY ENERGY CONTROL MODULE) "A" CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

    • Wait 10 seconds.

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

    Is DTC U0111:87 retrieved again? 

    Yes  GO to B3 
    No  The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

  4. B3 RETRIEVE THE BECM (BATTERY ENERGY CONTROL MODULE) "A" DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, perform the BECM "A" self-test.

    Are any BECM "A" Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: High Voltage Battery, Mounting and Cables .
    No  GO to B4 

  5. B4 RECHECK THE BCMC (BODY CONTROL MODULE C) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

    • Wait 10 seconds.

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

    Is BCMCDTC U0111:87 still present? 

    Yes  GO to B5 
    No  The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

  6. B5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0111:87 SET IN OTHER MODULES

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

    • Ignition OFF.

    • Ignition ON.

    • Wait 10 seconds.

    • Using a diagnostic scan tool, retrieve all  Continuous Memory Diagnostic Trouble Codes (CMDTCs).

    Is DTC U0111:87 set in other modules? 

    Yes  GO to B6 
    No  GO to  B7

  7. B6 CHECK FOR CORRECT BECM (BATTERY ENERGY CONTROL MODULE) "A" OPERATION

    • Disconnect and inspect the BECM "A" connectors.

    • Repair:

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

    • Reconnect the BECM "A" 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 "A". 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.

  8. B7 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION

    • Disconnect and inspect all BCMC connectors.

    • Repair:

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

    • Connect the BCMC 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 BCMC. REFER to: Body Control Module C (BCMC) .
    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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