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Pinpoint Test E : U0100:00

WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

  1. E1 VERIFY THE SCAN TOOL CAN COMMUNICATE WITH THE PCM

    • Connect the diagnostic scan tool.
    • Ignition ON.
    • Check that a vehicle session can be established using the diagnostic scan tool.

    Can a vehicle session be established? 

    Yes  GO to  E2.
    No  REFER to Module Communications Network .

  2. E2 CHECK THE BCM CMDTCs

    • Using a diagnostic scan tool, perform BCM self-test.
    • Clear the DTCs. Repeat the BCM self-test.

    Is DTC U0100:00 retrieved again? 

    Yes  GO to  E3.
    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. E3 RETRIEVE THE RECORDED DTCs FROM THE BCM SELF-TEST

    • Check for recorded BCM DTCs from the self-test.

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

    Yes  For DTC U3003:16, GO to Pinpoint Test B .For DTC U3003:17, GO to Pinpoint Test C .
    No  GO to  E4.

  4. E4 CHECK FOR DTC U0100:00 OR DTC U0100 SET IN OTHER MODULES

    • Ignition ON.
    • Using a diagnostic scan tool, retrieve the CMDTCs from all modules.

    Is DTC U0100:00 or DTC U0100 set in any other module? 

    Yes  INSTALL a new PCM. REFER to Electronic Engine Controls . CLEAR the DTCs.
    No  BCM Hardware Testing .
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