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Pinpoint Test T : DTC U0100:00: Notes

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.

DTC U0100:00 

Normal Operation and Fault Conditions 

Refer to Exterior Lighting .

DTC Description Fault Trigger Conditions
U0100:00 Lost Communication With ECM/PCM "A": No Sub-Type Information Sets in continuous memory in the HCM if data messages received from the PCM over the HS-CAN are missing for 5 seconds or more.

Possible Sources