LEMON Manuals: Even more car manuals for everyone
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 I : DTC U0155:00 >> Pinpoint Test I : DTC U0155:00

Pinpoint Test I : DTC U0155:00

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. I1 CHECK THE COMMUNICATION NETWORK

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

    Does the IPC pass the Network Test? 

    Yes  GO to  I2.
    No  DIAGNOSE the IPC does not respond to the scan tool, REFER to Diagnosis and Testing in Module Configuration .

  2. I2 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 U0155:00 retrieved again? 

    Yes  GO to  I3.
    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. I3 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  I4.

  4. I4 CHECK FOR DTCS IN THE IPC

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

    Is DTC B1317 or B1318 present? 

    Yes  DIAGNOSE the IPC DTCs. REFER to Diagnosis and Testing in Instrumentation, Message Center, and Warning Chimes .
    No  GO to  I5.

  5. I5 CHECK FOR DTC U0155 OR U0155: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 U0155 or U0155: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, Refer to IPC Hardware Testing .
    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 .
scientia non olet · About LEMON Manuals