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Pinpoint Test F : DTC (Diagnostic Trouble Code) U0101:00

WARNING: This page is about a different car, the 2020 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.

  1. F1 VERIFY THE CUSTOMER'S CONCERN

    • Ignition ON.

    • Verify if there is an observable symptom present.

    Is an observable symptom present? 

    Yes  GO to  F2
    No  CLEAR the DTC. The system is operation correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

  2. F2 VERIFY THAT THE DIAGNOSTIC SCAN TOOL CAN COMMUNICATE WITH THE TCM (TRANSMISSION CONTROL MODULE)

    • Using a diagnostic scan tool, perform the network test

    Does the TCM pass the network test? 

    Yes  GO to  F3
    No  REFER to: Communications Network .

  3. F3 PERFORM THE IPMA SELF-TEST

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

    • Clear the Diagnostic Trouble Codes (DTCs).

    • Wait 10 seconds.

    • Repeat the IPMA self-test.

    Are any Diagnostic Trouble Codes (DTCs) present? 

    Yes  DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs). REFER to the IPMA DTC Chart 
    No  GO to  F4

  4. F4 PERFORM THE TCM SELF-TEST

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

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

    Yes  DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs). REFER to: DTC Chart and Pinpoint Tests - 3.0L EcoBoost .
    No  GO to  F5

  5. F5 PREFORM THE GWM SELF-TEST

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Communications Network .
    No  GO to  F6

  6. F6 RECHECK THE IPMA (IMAGE PROCESSING MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

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

    • Ignition OFF.

    • Ignition ON.

    • Wait 10 seconds.

    • Using a diagnostic scan tool, perform the continuous memory self-test.

    • Check the IPMA Diagnostic Trouble Codes (DTCs).

    Is DTC U0101:00 still present? 

    Yes  GO to  F7
    No  The system is operating correctly at this time. This DTC may have been set due to high network traffic or an intermittent fault condition.

  7. F7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

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

    • CHECK the vehicle service history for recent service actions related to the TCM, IPMA or GWM. If recent service history is found:

      • 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 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 new replacement module

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

    Is the observable symptom still present? 

    Yes  GO to  F8
    No  The system is operating correctly at this time. The concern may have been caused due to incorrect parts replacement procedures or incorrect module configuration.

  8. F8 CHECK FOR CORRECT TCM (TRANSMISSION CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all TCM 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 TCM connectors. Make sure they seat and latch correctly.

    • Operate the system to 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 TCM. REFER to: Transmission .
    No  The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
DTC Description Fault Trigger Conditions
U0103:00 Lost Communication With Gear Shift Control Module A: No Sub Type Information A continuous memory DTC that sets in the IPMA if messages received from the GSM over the HS-CAN2 are missing.
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