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Pinpoint Test BT : U0101:00 Or U0402:00: Notes

U0101:00 or U0402:00 

Normal Operation and Fault Conditions 

IPC DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0101:00 Lost Communication With TCM: No Sub Type Information Sets in continuous memory in the IPC if data messages received from the TCM through the GWM are missing for 5 seconds or longer.
U0402:00 Invalid Data Received from TCM: No Sub Type Information Sets in continuous memory in the IPC if updated data messages for transmission temperature are not received from the TCM for 5 seconds or longer.

Possible Sources 

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