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Pinpoint Test K : U0101:00: 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.

Normal Operation and Fault Conditions 

The SOD-L and SOD-R communicate with the PCM through the HS-CAN and MS-CAN, with the BCM acting as a gateway.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0101:00 Lost Communication With TCM: No Sub Type Information Set in continuous memory in the SOD-L or SOD-R when expected network messages from the PCM are not received for 800 milliseconds or more.

Possible Sources