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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 508 (Auxiliary Brake System) >> Diagnosis And Testing >> Auxiliary Brake System - Trailer Brake Control (TBC) Module >> Pinpoint Tests >> Pinpoint Test G : U0100:00 >> Pinpoint Test G : U0100:00

Pinpoint Test G : U0100:00

WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

  1. G1 CHECK THE COMMUNICATION NETWORK

    • Ignition ON.
    • Using a scan tool, carry out the Network Test.

    Does the PCM pass the Network Test? 

    Yes  GO to  G2.
    No  DIAGNOSE the PCM does not respond to the scan tool, REFER to Diagnosis and Testing in Module Configuration .

  2. G2 CHECK THE TBC MODULE CMDTCs

    • Using a diagnostic scan tool, carry out the TBC module self-test.
    • Clear the DTCs.
    • Ignition OFF.
    • Ignition ON.
    • Using a diagnostic scan tool, carry out the TBC module self-test.
    • Record the TBC module DTCs.

    Is DTC U0100:00 retrieved again? 

    Yes  GO to  G3.
    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.

  3. G3 REVIEW THE RECORDED DTCs FROM THE TBC MODULE SELF-TEST

    • Review the recorded DTCs from the TBC module self-test.

    Is DTC U3003:16 or DTC U3003:17 recorded? 

    Yes  For DTC U3003:16, GO to Pinpoint Test E .For DTC U3003:17, GO to Pinpoint Test D .
    No  GO to  G4.

  4. G4 CHECK FOR DTCS IN THE PCM

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

    Is DTC P0562 or P0563 present? 

    Yes  DIAGNOSE the PCM DTCs. REFER to Diagnosis and Testing in Electronic Engine Controls .
    No  GO to  G5.

  5. G5 CHECK FOR DTC U0100 OR U0100:XX SET IN OTHER MODULES

    • Using a diagnostic scan tool, carry out the self-test for all modules.
    • Retrieve the CMDTCs from all modules.

    Is DTC U0100 or U0100:xx set in 1 or more modules in addition to the TBC module? 

    Yes  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new PCM. REFER to Electronic Engine Controls .
    No  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new TBC module. REFER to Trailer Brake Control (TBC) Module .
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