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Pinpoint Test H : U0100:00

WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

  1. H1 VERIFY THE CUSTOMER CONCERN

    • Ignition ON.

    • Verify there is an observable symptom present.

    Is there an observable symptom present? 

    Yes  GO to  H2
    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.

  2. H2 VERIFY THAT THE DIAGNOSTIC SCAN TOOL COMMUNICATES WITH THE PCM (POWERTRAIN CONTROL MODULE)

    • Using a diagnostic scan tool, verify a vehicle session can be established.

    Can a vehicle session be established? 

    Yes  GO to  H3
    No  REFER to: Communications Network .

  3. H3 CHECK FOR CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PCM (POWERTRAIN CONTROL MODULE) KOEO (KEY ON, ENGINE OFF) SELF-TEST

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

    • Ignition OFF.

    • Ignition ON.

    • Wait at least 10 seconds.

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

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

    Yes  DIAGNOSE any non-network Diagnostic Trouble Codes (DTCs). For 2.0L, REFER to: Electronic Engine Controls 2.0L EcoBoost (177kW/240PS) - MI4 . For 2.3L, REFER to: Electronic Engine Controls 2.3L EcoBoost (201kW/273PS) .
    No  GO to  H4

  4. H4 CHECK THE CCM (CRUISE CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)

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

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

    Yes  REFER to: Communications Network .
    No  GO to  H5

  5. H5 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Communications Network .
    No  GO to  H6

  6. H6 RECHECK THE CCM (CRUISE CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

    • Ignition OFF.

    • Ignition ON.

    • WAIT 10 seconds.

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

    Is DTC U0100:00 still present? 

    Yes  GO to  H7
    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.

  7. H7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

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

    • Check the vehicle service history for recent service actions related to the CCM and PCM.

      • verify correct replacement module was installed

        • HVBOM 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 customer vehicle

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

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

    Is the observable symptom still present? 

    Yes  GO to  H8
    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. H8 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all PCM 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 PCM 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PCM. For 2.0L, REFER to: Powertrain Control Module (PCM) 2.0L EcoBoost (177kW/240PS) - MI4 . For 2.3L, REFER to: Powertrain Control Module (PCM) 2.3L EcoBoost (201kW/273PS) .
    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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